International Journal of Environment, Agriculture and Biotechnology (IJEAB)
http://dx.doi.org/10.22161/ijeab/3.3.5
Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
Evaluating The Effect of Integrated Use of Farm
Yard Manure and Urea on the Socio economic
Performance of Tomato (Lycopersiconesculentum
Mill) at Tselemti Woreda, North western Tigray,
Ethiopia
Gebremedhn Gebretsadkan
Tigray Agricultural Research Institute(TARI), Shire-Maitsebri Agricultural Research Center, Shire, Ethiopia.
Abstract— As compared to the potential productivity &
national average yield of the crop, farmers in Tselemti
‘woreda ‘are not getting as much tomato yield /profit as
expected, because of the low soil fertility & un proper soil
management practices. To mitigate the problem farmers
commonly use a blanket recommendation of inorganic
fertilizers. But currently most farmers are not applying
inorganic fertilizers at recommended rates,because of the
high price of inorganic fertilizers. Hence, use of FYM would
be un avoidable, particularly for resource poor farmers.
However FYM alone may not be enough to meet the nutrient
requirements of high yielding tomato varieties.So, integrated
use of organic and inorganic plant nutrient sources help to
overcome problems with the sole application and have
moreeconomic profit. This study was therefore conducted
with the objective of evaluating the economic feasibility of
combined use of FYM & Urea nutrient sources in tomato
production & assessing farmer’s perception on the use &
advantage for sustainable &better tomato production, in
Tselemtiwereda, May ani site during the 2012/13 off season
time. Organic (FYM) and inorganic (Urea) nutrient sources
was integrated in different proportions to supply 60Kgha -1 of
Nitrogen (N) from both sources at different ratios. The
treatment combinations are T1 (control or with no fertilizer),
T2 (100%IF), T3 (25% FYM+75%IF), T4 (50%FYM+50IF),
T5 (75%FYM+25%IF) & T6 (100%FYM).Three ‘kebeles’
and 72 farmers was surveyed for the perception data.The
partial budget analysis revealed that maximum net of return
(59902.45) Birr/ha was recorded in treatments that receive
25% N from FYM in conjunction with 75% N from IF
sources followed by 50%N from FYM and 50%IF with a net
return of 56,386birrha-1and 23,862.45 and 15,896.5 net
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return over the control. The Perception of the respondent
farmers also indicates that 94.4% of the answered farmers
use inorganic fertilizers in tomato production, but 48.61% of
them were responded use of inorganic fertilizer in tomato
production is not economically feasible and 44.4% use an
integration of both nutrient sources for better tomato
productivity. The overall study revealed that a combined
application of FYM with Urea at (25:75 and 50:50 ratios)
significantly increased economic profit in tomato production.
Therefore, it is recommended for tomato producers of
Tselemti wereda for profitable & acceptable tomato
production.
Keywords— FYM, Inorganic, Integrated, Organic, Net
return, Tomato, Urea.
I.
INTRODUCTION
In terms of profitability, evidence of positive returns is often
found for integrated mineral organic system (Sedaf and
Qasimkhan, 2010). The integration of FYM and inorganic
fertilizer on maize in Zimbabwe resulted in a return to the
labor of about $ 1.35 per day, while the best single fertilizer
or manure treatment yielded only $0.25 (Mekuria and
Waddington, 2002). The profitability of alternative nutrient
input sources depends not only on yield gains but also on
market conditions (Place et al., 2003).
Through the conventional understanding the best way to
improve the productivity of resource poor farmers is the use
of high-yielding variety of crops and chemical fertilizer;
however research evidences show that the resulting yield
increases may not be sufficient to pay for these inputs
(Christopher, 1994). The addition of any amount of fertilizer
is interesting to farmers if and only if it is profitable through
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International Journal of Environment, Agriculture and Biotechnology (IJEAB)
http://dx.doi.org/10.22161/ijeab/3.3.5
the enhancement of either yield or quality. Mostly, maximum
profits are rare at maximum yields because the last increment
of fertilizer to produce a little more yield may cost more than
the yield increase is worth. Any new technology can be
evaluated in terms of its impact on the productivity,
profitability, acceptability and sustainability of farming
systems. Integrated nutrient management practices are
survival and risk avoidance strategies for farmers. Many
farmers understand the role of FYM in improving soil quality
and sustaining yield (Duncan et al., 1990).
Tolesaa and Friesen (2001) reported that the application of
25% recommended inorganic NP fertilizers mixed with FYM
resulted in the highest marginal rate of return in maize
indicating that the integrated approach can enable to save up
to 75% of commercial fertilizers. Likewise, Bayuet al. (2006)
also reported the possibility of saving up to 50% of the
recommended NP fertilizers due to amendment with 5-15 t
ha-1 FYM to sorghum crop without significantly affecting the
optimum possible yield that can be obtained with the
application of full dose of inorganic NP fertilizers alone.
Farmers’ decisions to adopt a new technology in preference
to other alternative technologies depend on complex factors
(Tesfaye, 2003). One of the factors is the farmers’ perception
to the characteristics of the new technology. The typical
characteristics of a technology are relative advantage,
complexity, compatibility, risk and uncertainty. While
farmers do not necessarily make conscious and sophisticated
analysis of the degree of risk in adopting technology, they are
aware of the implication of particular choices. If a farmer’s
actual experience with the innovation is satisfactory, his/her
perceptions probably will become more favorable (Van den
Ban and Hawkins, 1998).
Farmers’ opinions towards the use of either organic or
inorganic sources of plant nutrients are influenced by a
variety of factors such as: information sources, ethical
concerns about the environment, farmers’ knowledge,
economic considerations (cost and benefit aspects),
marketing procedures, the rationale of the extension system
Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
and the like (Chouichom and Yamao, 2010). Many
researchers reviewed lots of reasons that farmers are
frustrated in using mineral fertilizer such as: the ever
increasing price ofmineral fertilizer is becoming beyond the
purchasing power of farmersand fear of burning effect by
chemical fertilizers on crops when moisture is limiting
(Hailu, 2010). Generally, the frustration of the smallholder
farmers is to escape possible crisis when the prices of their
farm products are too low or lost in the unpredictable rainfall
situation. Therefore, farmers are inclined into locally
available resources and technologies such as the use of FYM,
Butit is not possible to obtain a higher crop yield(profit) by
using organic manure alone due to their unavailability in
excess amount and they contain a comparatively low quantity
of nutrients compared to inorganic fertilizers.
However, no study has been done on the use of integrated
fertilization on the economic profit & social perception of
irrigated tomato so far in the study area.Therefore, the aim of
this research was to study the impact of combined use of
FYM and urea nutrient sources on the economic profitability
& social aspects of irrigated tomato on Tselemtiworeda,
Northern Ethiopia.
II.
MAREIALS AND METHODS
The field experiment was conducted at North Western Zone
of Tigray, TselemtiworedaMay ani ‘kebele’ on farmer fields
during the off season of 2012/2013.
From the total 21 village ‘kebeles’ of the ‘woreda’ three
kebeles (May ani, Medhanialem and Whdet) were selected
purposively (Purposive Sampling) for the survey data, based
on their accessibility, good potential and better experience in
irrigated tomato production using Probability Proportional to
Sample size (PPS) method.The target population was those
farmers which have at least five years’ experience in the
production of irrigated tomato. A total of 544 farmers was
selected from the three ‘kebeles’ that fulfill the criteria with
the assistance of the extension staffs of each ‘kebele’, To
make it have a sense of statistic, using the PPS method, 72
households were selected from these 544 households.
Table.1: Method of sample size determination of the respondents using PPS
S/N
Kebele name
No Total HHs selected
Using PPS
Whdet
280
37
1
Medhanialem
150
20
2
Mai ani
114
15
3
Source: Tselemtiwereda office of agriculture and rural development(2005);PPS=Probablity proportional to size
Descriptive survey design for data collection was adopted in
the study. Primary data were collected from the respondents
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with the aid of a structured interview consisting of both
open and close ended questions. The secondary data were
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International Journal of Environment, Agriculture and Biotechnology (IJEAB)
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also gathered from various sources including Tselemti
office of agriculture and rural development, and Maitsebri
Agricultural Research Center (MyARC).Besides, relevant
literature, official reports were also consulted as a
secondary data source. Primary data were collected from
sampled farmers who had involved at least for five years in
tomato production. Pre-tested interview schedule and
checklists were employed as survey instruments.
Based on the 2007 national census conducted by the Central
Statistical Agency (CSA, 2007) of Ethiopia, the ‘woreda’
has a total population of 138,858 of whom 70,108 are men
and 68,750 women.A total of 30,485 households resulting
in an average of 4.55 persons per household. Various land
use types i.e rain fed cultivated land, irrigated land, grazing
land, forest land, home stead and the like are
existing.The‘woreda’ has a total area of 70926ha with
30,365 ha arable land,7000ha irrigated land, 4577ha forest
land, 14882 ha grazing and bush land and 14102ha gully
and mountainous land (MyARC, 2010).
For economic evaluation of the cost and benefit in using the
different ratios of organic and inorganic fertilizers, the
Partial Budget Analysis (PBA), which includes the
Dominance Analysis (DA) and Marginal Rate of Return
(MRR), was used following the CYMMYT procedure
(CIMMYT, 1998). In this study, the partial budget analysis
was made to determine the most economically acceptable
treatments (combinations) by estimating the costs and
benefits based on the current market price of tomato fruit,
inorganic fertilizers and the spreading costs of farmyard
manure for the cropping season at the study area.
The varying labor costs were estimated based on the
existing rate of payment to daily farm laborers. The fruit
yield harvested from the experimental plots was converted
into hectare bases. Then, the market value of the fruit yields
was based on the prevailed market price. To estimate
economic parameters, tomato was valued at an average
open market price of 200.00 birr per quintal (100kg) of
fruit. The price of 20 work days (WD) per hectare for
collection and application of FYM (Astewel, 2010) at a
wage rate of 50 Birr per workdays was used. Since the local
market for the applied TSP as a source of phosphorus was
not available the cost was calculated by changing to DAP
equivalent. So, the price of inorganic fertilizers at the time
of transplanting in the area was 1500.00Birr per quintal for
DAP and 1250.00 Birr per quintal for Urea. Experimental
yields are often higher than the yields that farmers could
expect using the same treatments; hence in economic
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Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
calculation yields of farmers are adjusted by 15% less than
that of the research results (CIMMYT, 1998). Based on this
principle the yield obtained from each treatment was
changed to hectare basis and reduced by 15% for economic
analysis and the analysis was undergone through the
following stages:
Net Income: Estimate the net benefit arising from all
alternative treatments. Net income (NI) is calculated as the
amount of money left when the total variable costs of inputs
(TVC) are deducted from the total revenue (TR).
Dominance Analysis: Before proceeding with the
calculation of Marginal Rates of Return, an initial
examination of the costs and benefits of each treatment,
called dominance analysis is important. Dominance analysis
is used to eliminate some of the treatments from further
consideration in the MRR and thereby simplifying the
analysis of MRR. i.e., those treatments which involve
higher cost but do not generate higher benefits (called
dominated treatments) are eliminated. The dominance
analysis was carried out by first listing all the treatments in
their order of increasing costs that vary (TVC) and their net
benefits (NB) are then put aside. Any treatment that has
higher TVC but net benefits that are less than or equal to the
preceding treatment (with lower TVC but higher net
benefits) is dominated treatment (marked as“D”). The
dominance analysis illustrates that to improve farmers'
income, it is important to pay attention to net benefits rather
than yields, because higher yields do not necessarily mean
higher net benefits.
The Marginal Rate of Return: is used to assess relative
profitability among alternative treatments. It measures the
percentage increase in net income in relation with each
additional input of expenditure (TVC) and the 100% rate
of return was considered as a minimum value, which
farmers could be willing to invest given their level of
poverty and the fragile nature of the environment
(CIMMYT, 1998). MRR was calculated as the ratio of
change in return on the average of each replicated treatment
to the change in total cost with regard to the control. It
compares the increments in costs and benefits between pairs
of treatments.
MRR = NI X100
TVC
Where:
ΔNI = Change in Net Income;
TVC = change in Total Variable Cost
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International Journal of Environment, Agriculture and Biotechnology (IJEAB)
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The marginal rates of return appear in between two
treatments. It makes no sense to speak of the marginal rate
of return of a particular treatment because the MRR is a
characteristic of the change from one treatment to another.
Identification of a candidate recommendation from
among the non-dominated treatments: This is the
treatment which gives the highest net return and a marginal
rate of return greater than the minimum considered
acceptable to farmers.
The social data collected were analyzed with the aid of the
descriptive statistical tools of frequency count and
percentage.
Simple descriptive statistics such as simple measures of
mean, standard deviation, frequency, percentages and cross
tabulation were used for the survey data gathered from the
sampled farm households. Statistical package for social
science (SPSS) version 16 was employed to analyze the
data.
Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
III.
RESULTS AND DISCUSSION
Effect of Integrated use of Organic and IF on Economic
Performance
The economic analysis revealed, how gross returns and net
benefits were influenced by the integrated use of organic
and inorganic plant nutrient sources on irrigated tomato
productivity(Table 2). Based on the current market price of
economic yield (output) and prevailing price of inputs
during the production period, maximum net of return of Birr
59902.45ha-1 was recordedin the plots that receive 25% N
from FYM (4.5t/ha) in conjunction with 75% N from
inorganic (97.5Kg/ha Urea)sources
Followed by 50% FYM combined with 50% of urea with an
average net benefit of birr 56386birrha-1. It was noted that
the integrated use of organic manure with mineral fertilizer
at 25:75 and 50:50 ratios were economically profitable and
resulted in high net return. However the lowest net return
(36040 Birr/ha) was received in the control treatment (Table
2). Similar results were reported by Alamet al., (2004)who
observed that higher profit was obtained when inorganic
fertilizer was combined with organic manures.
Table.2: TVC cost and NR of tomato as influenced by the integrated use of fertilizers
Trts
T1
T2
T3
T4
T5
T6
Combinations
FYM
IF(Urea)
(tha-1)
(kgha-1)
0
0
0
130
4.5
97.5
9
65
13.5
32.5
18
0
Gross return
(birr ha-1)
TVC
Net return
(birrha-1)
Net return over
control
36040
55624
63818
60061
52411
47515
0
3687.5
3915.55
3675
4137.5
4600
36040
51936.5
59902.45
56386
48273.5
42915
15896.5
23862.45
20346
12233.5
6875
FYM=Farm Yard Manure; IF=Inorganic fertilizer; TVC=Total Variable Cost
From the agronomic point of view, the best results were
obtained from plots which received combined nitrogen
(organic and inorganic) i.e.25%N from FYM with 75%N
from inorganic fertilizers, yielded better than the rest of
treatment combinations.(Table 3). lists the total costs that
vary and the net benefits for each of the treatments in the
integrated use of organic (FYM) and inorganic (Urea) plant
nutrients for tomato production. This used to identify the
inferior treatments i.e. those which involve higher costs but
do not generate higher benefits (dominated treatment). To
proceed through the dominance analysis, treatments were
listed in order of increasing total costs that vary and their
corresponding benefits were put aside. This illustrates that
to improve farmers' income it is important to pay attention
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to net benefits, rather than yields. As indicated in (Table 3),
T1 showed theleast TVC (0) while T6 showed the maximum
TVC (6400 Birr) and all the remaining treatments were
confined between these two ranges. As goes from treatment
(T1) to treatment (T4) both the TVC and net profit increases,
but for treatment (T2) the total variable cost is increased but
showed lower net benefits than treatment (T4) (56386). No
farmer would choose T2in comparison with T4, because
T2has higher costs that vary, but lower net benefits. Such a
treatment is called a dominated treatment (marked with a
"D" (Table 3).On the other hand as goes from treatment T2
to treatment T3 both the TVC and the net benefit are
increased and considered for further analysis of MRR. The
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rest treatments (T5 and T6) are dominated were not
considered for further analysis.
Therefore, from the total six treatments only three
treatments (T1, T3 and T4) were considered for analysis of
Marginal rate of return (MRR) (Table 3). Marginal Rates of
Return (MRR) appear in between two treatments. It makes
no sense to speak of the marginal rate of return of a
particular treatment; rather, the marginal rate of return is a
characteristic of the change fromone treatment to another.
Since dominated treatments were not included in the
marginal analysis, the marginal rate of return was positive.
The marginal rate of return indicates what farmers can
Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
expect to gain, on the average, in return for their investment
when they decide to change from one practice (or set of
practices) to another. From the present day experiment
combined use of FYM and inorganic fertilizers at the rate of
25% N from FYM with 75% N from inorganic and 50%
from FY M with 50% from inorganic could be considered
to have an economic advantage over the use of other
alternative combinations. So to improve farmers’ income
decision cannot be taken regarding these treatments without
knowing what rate of return is acceptable to the farmers
rather attention should be given to the net benefits because
higher yield does not necessarily mean high net benefit
Table.3: Economic analysis for integrated use of fertilizers in tomato
Trts
Combinations
FYM
IF
Yield
(Qlha-1)
GR
(birr ha-1)
TVC
NR
(birrha-1)
Domina
nce
MRR
(%)
T1
T4
T2
0
50
0
0
50
100
212.0
353.0
327.2
36040
60061
55624
0
3675
3687.5
36040
56386
51936.5
D
553.6
-
T3
T5
T6
25
75
100
75
25
0
375.4
308.3
279.5
63818
52411
47515
3915.5
4137.5
4600
59902.4
48273.5
42915
D
D
609.4
-
Trt= Treatment; TVC= Total Variable Cost; D= dominated; MRR= Marginal Rate of Return; FYM= Farm Yard Manure;
IF=inorganic fertilizer (Urea);Qt=Quital;ha-1=per hectare
The first rate of return was recorded between treatment 1
and treatment 4 with a change in net income of 20346 Birr
and a change in total variable cost of 3675 Birr. Therefore
the Marginal rate of return was 553.6 % or 5.53 birr. This
means that for every 3675 Birr investment of a farmer in
using 9 t/ha of FYM and 65 kg of inorganic fertilizer
(Urea), farmers could expect to recover the 3675 birr and
Birr and obtain additional 23862.4 Birr and have an
economic advantage over the use of other alternative
combinations. So, this is important to farmers to improve
their income.
Perception of Farmers to Use FYM for Tomato
production
Despite the high number of livestock per household and the
availability of cheap family labor that could be used for
FYM collection and transportation the use of FYM for
increased irrigated tomato productivity is not a common
practice in the area. According to the respondents, FYM is
used mostly for major rain fed crops such as Maize,
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obtain additional 20346 Birr. Similarly as goes from
treatment 4 to treatment 3, Marginal Rate of Return (MRR)
is 609.4% or 6.09 Birr which is relatively highest in this
experiment. This means that for every 3915.5 Birr
investment of a farmer in using 4.5t/ha of FYM and 97.7 kg
of inorganic fertilizer (Urea), farmers could expect to
recover
the
3915.5
Sorghum and Finger millet. Even though livestock manure
is highly respected by the farmers as a soil fertility
improvement, the collection, storage and application
method is not practiced properly and only used in the rain
fed crops. The chi-square test indicated that there isa
significant difference (p<0.01) among the three ‘kebeles ‘in
the use of the FYM in irrigated tomato production.
Relatively more farmers in M/ani were used FYM for
tomato production (Table 4). Even though farm yard
manure was easily accessed to the farmers about 43.1% of
them were not used for tomato production because of
different reasons (Table 5
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International Journal of Environment, Agriculture and Biotechnology (IJEAB)
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Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
Table.4: Farmers experience in the use of FYM for irrigated tomato production
Question
Do you use FYM for
tomato production in
your irrigation site?
Respons
e
Kebele Name
Whdet
M/alem
Total
Percent
M/ani
Yes
No
15
22
16
4
10
5
41
31
56.9
43.1
Total
37
20
15
72
100
X2
significance
8.97
0.011**
X2=Chi-square test;**= significant p<0.01
Table.5: Main reasons of farmers for do not use FYM in tomato production
S/N
Main reasons
Frequency
percentage
1
2
3
4
Lack of know how
Labor shortage and far from the source
Priority to use IF
Disease and weed problems
18
13
10
1
42.8
31
23.8
2.4
Total
42
100
used inorganic fertilizers because of different reasons. In
terms of the economic feasibility of inorganic fertilizer for
tomato production, (48.61%) of respondents argued that use
of inorganic fertilizer is better to gain better profit, whereas
more than half (51.39%) of the farmers respond that use of
inorganic fertilizers is not economically feasible. From the
37(53.9%) respondent farmers who answered inorganic
fertilizer is not economically feasible, 12.9% of them
viewed because price of inorganic fertilizer is high, 83.88%
of them respond because the current market the price of the
vegetables (tomato) is below the initial price of the inputs
used for production and the rest 3.2% of the respondent
farmers answered that due to the burning effect of inorganic
fertilizers especially after first harvest.
As depicted in table 5from the farmers which do not use
FYM for irrigated tomato production, 42.8% were because
of the lack of know how whether FYM is important for
tomato production or not, 31% of the farmers responded
that due to labor shortage and far from the source, 23.8% of
the respondents give priority to inorganic fertilizers as a
nutrient sources and the remaining 2.4% answered as due to
diseases and weed problems of the FYM.
Farmers’ perception to use of Inorganic fertilizers in
tomato production
The results depicted in (Table 6) showed that all most all of
the respondent farmers
(94.4%) in the study area were using inorganic fertilizer for
tomato production. 5.6% of the respondent farmers were not
Table.6: Farmers experience and perception on Inorganic fertilizer for tomato production
Questions
Respons
e
Kebele Name
Whdet
M/alem
M/ani
Do you use IF to increase your tomato
productivity?
Yes
No
Total
35
2
37
18
2
20
Do you really believe that use of IF in
Yes
18
5
www.ijeab.com
Total
%
15
0
15
68
4
72
94.4
5.6
100
14
37
51.39
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No
19
15
1
35
48.61
Total
37
20
14
72
100
High price of fertilizers(not feasible)
1
0
3
4
12.9
price of vegetables is below IF
Burning effect of IF after 1st picking
15
0
10
1
1
0
26
1
83.9
3.2
Total
16
11
4
31
100
tomato is economically feasible?
If your
answer is
no why?
Vol-3, Issue-3, May-June- 2018
ISSN: 2456-1878
( Table 7), 65% of the total respondent farmers in the study
‘kebeles’ used integrated nutrient management for tomato
for the advantage of early and better performance of the
crop, 18.8% of the respondents use for soil fertility
improvement and the remaining 15.5% used integrated
nutrient management for sustainable crop production. This
agrees with the findings of Charreau (1991), who reported,
higher and sustainable crop yields are achieved with the
same amount of nutrients when supplied through combined
use of organic and inorganic fertilizers than mineral
fertilizer or organic alone.
Perception of Judicious Use of FYM with Inorganic
Fertilizers
Farmers’ perception to integrated use of organic and
inorganic fertilizer for tomato production showed in (Table
7).The result indicates that the sole use of FYM and
inorganic fertilizers were practiced by an equal percentage
(27.8%) of respondents. Majorities (44.44%) of the
respondents were using the integration of organic (FYM)
and inorganic (Urea) nutrient sources for better tomato
productivity. The main reasons why farmers are interested
to use the integration of both nutrient sources for tomato
production is concentrated on three reasons. As depicted in
Table.7: Farmers perception to integrated use of nutrients for tomato production
Questions
Total
%
FYM only
IF only
Integration of both
Kebele Name
Whdet
M/alem
8
11
14
1
15
8
M/ani
1
5
9
20
20
32
27.8
27.8
44.4
Total
37
20
15
72
100
Early and better performance of the crop
10
5
6
21
65.6
Soil fertility improvement
3
2
1
6
18.8
Sustainable crop production
2
1
2
5
15.6
15
8
9
32
100
Which type of plant nutrient
sources is better for tomato
productivity
If your
answer is
integration
of both
why?
Total
IF=Inorganic Fertilizer;FYM=Farm Yard Manure
IV.
CONCLUSION
Based on the current market price of inputs and outputs, the
economic analysis indicates that all fertilized treatments
(either integrated or lone) record higher net returns over the
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control treatment. From the present day experiment,
treatments which received integration of FYM and
inorganic fertilizers at the rate of 25% N from FYM with
75% N from inorganic sources resulted a maximum net of
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return,i.e,15.4% more than the use of sole inorganic
fertilizers and 39.6% more than the use of FYM only.
Generally, in order to improve farmers’ income decision
cannot be taken regarding only the agronomic observations
without knowing what rate of return is acceptable to the
farmers rather; attention should be given to the net benefits
because higher yield does not necessarily mean higher net
benefit.
Based on the findings, regarding the social perceptions to
the integrated use of organic and inorganic nutrient sources
for irrigated tomato production, it can be concluded that,
almost half of the respondents do not use FYM only for
tomato production, because of lack of know-how, Priority
to use inorganic fertilizers, labor shortage and disease and
weed problems. Similarly, half of the respondent farmers
perceive that, use of inorganic fertilizers is not
economically feasible due to the high price of fertilizer, the
low market price of tomato and burning effect of inorganic
fertilizers especially after first picking. So farmers are
interested on the integrated use of both nutrient sources for
the advantage of early and better performance of tomato
crops, soil fertility improvement and sustainable crop
production.
To get better yield and higher economic benefit from
irrigated tomato productions Every concerned stakeholder
should give due attention to locally available nutrient
resources (FYM) and the integrated use with Inorganic
fertilizer for sustainable tomato production.
CONFLICT OF INTEREST
The author(s) have not declared any conflict of interests.
AKNOWLEDGEMENTS
This research was conducted in partial fulfillment of the
M.Sc degree at Mekelle University by the first author.
Funding was provided by the SIDA project.
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