- Agricuturlist and Bio-statistician, Travelleredit
This study was conducted to investigate the effect of POME application on reducing ammonia volatilization loss using formulated control release urea (CRU) fertilizers. Ammonia volatilization loss was measured using modified force-draft... more
This study was conducted to investigate the effect of POME application on reducing ammonia volatilization loss using formulated control release urea (CRU) fertilizers. Ammonia volatilization loss was measured using modified force-draft technique to evaluate its effect via application of palm oil mill effluent (POME). Three type of BRIS soils; Melawi, Rudua, and Rhu Tapai were used under controlled laboratory condition with soil moisture maintained at 40 %. Application of typical urea and three (3) types of formulated control release urea fertilizers; Meister-20, CR Duration type V, and CDU Uber-10 at the rate of 400 µg/g were used en masse. Whilst, the application of POME was set at 100 kg/ha of dried POME. Ammonia volatilization loss was recorded on daily basis for a period of two weeks. Results indicated that, the combination of POME and urea shows the best reduction of NH 3 at 83.6 % compared to without POME inclusions. The CRU fertilizers and incorporation of soil with POME in general shows best effect in reducing NH 3 loss.
Research Interests:
A field trial was conducted to oversee the effects of controlled release urea (CRU) fertilizers on kenaf grown on the BRIS soil. Three types of formulated CRU were tested : (1) Meister-20, (2) CRU Duration Type V and (3) Uber-10 along... more
A field trial was conducted to oversee the effects of controlled release urea (CRU) fertilizers on kenaf grown on the BRIS soil. Three types of formulated CRU were tested : (1) Meister-20, (2) CRU Duration Type V and (3) Uber-10 along with typical granular urea which acts as control set. Two rates of fertilizer at 300 and 600 kg N/ha were applied accordingly. Results demonstrated that the 300 kg N/ha fertilization was sufficient to ensure sufficient growth for sustainable kenaf production. The best CRU fertilizers, which were able to support the growth and nitrogen uptake of tested crop on the BRIS soil were : Meister-20> Duration Type V> Uber-10, respectively.
Research Interests:
A study was conducted to investigate the effect of plant beneficial bacteria (Bacillus subtilis) with combinations of NPK green fertilizers on the growth of pegaga (Centella asiatica). Six treatments (6) were designed in this study:-1)... more
A study was conducted to investigate the effect of plant beneficial bacteria (Bacillus subtilis) with combinations of NPK green fertilizers on the growth of pegaga (Centella asiatica). Six treatments (6) were designed in this study:-1) without plant beneficial bacteria and NPK fertilizer (control), 2) 10 g/ L of plantbac, 3) NPK fertilizer, 4) NPK fertilizer and 8g/L of plantbac, 5) NPK fertilizer and 10 g/L of plantbac and, 6) NPK fertilizer and 12 g/L of plantbac. The nitrogen and phosphorus concentration in the leaf, petiole and root were increased after incoporation of plant beneficial bacteria and NPK green fertilizer in the soil media. Similarly, fresh weight (FW), root length (RL) and root volume (RV) recorded also greater than the control set. The usage of plantbac either with or without incorporation of NPK potentially to be promoted for sustainable pegaga cultivations. The best treatments were recorded as follows:-NPK fertilizer and 12 g/L (T6) > NPK fertilizer and 10 g/L of plantbac (T5) > NPK fertilizer and 8g/L of plantbac (T4) > NPK fertilizer only (T3) > 10 g/ L of plantbac only (T2) > without plant beneficial bacteria and NPK fertilizer (T1).
Research Interests:
Sustainable organic herbal production requires utilization of bio-waste materials as plant nutrient sources due to its economical aspect and would ensure continuous productivity. The usage of organic wastes in organic farming system (OFS)... more
Sustainable organic herbal production requires utilization of bio-waste materials as plant nutrient sources due to its economical aspect and would ensure continuous productivity. The usage of organic wastes in organic farming system (OFS) as fertilizers and soil amendments should be monitored as the accumulation of heavy metals has been reported in several studies. Glasshouse study has been conducted to assess the effectiveness of Pb immobilization due to chicken manure application using different sources of phosphate materials; bone meal (BM), Egyptian rock phosphate (ERP) and triple super phosphate (TSP). From the fractionation of glasshouse study, the percentage of exchangeable fraction of Pb was reduced with application of P-amendments with the highest of 20.2% of reduction recorded for 2 t/ha application of TSP. This is followed by reduction in exchangeable fraction for others treatments: 2 t/ha of BM (4.1%), 4 t/ha of BM (5.1%), 1 t/ha of ERP (8.1%) and 2 t/ha of ERP at 17.6%. These treatments were recorded as being able to stabilize the Pb as indicated in the percentage reduction of phytoavailable pools into a more stable form of residual pool.