Abstract
The lower productivity and higher yield gaps in major cereals are the dominant problems of agriculture in eastern-terai of Nepal. Hence, field experiment was conducted to evaluate Nutrient Expert® wheat and maize model on farmer’s field at two sites each for maize and wheat in Morang and Jhapa district. The experiment was conducted in Randomized Completely Block Design replicated among twenty farmers in each district. Two treatments executed were NE (Nutrient Expert Recommendation) and FFP (Farmer Fertilizer Practices).The result revealed significant difference in terms of morphology, yield attributes and yield of wheat and maize. The highest wheat yield (4.71 ton ha-1) was obtained from NE followed by FFP (3.00 ton ha-1) in Jhapa and in Morang, was (4.01 ton ha-1) in NE followed by (2.05 ton ha-1) in FFP. In contrary, the higher maize yield (9.22 ton ha-1) was obtained from NE followed by FFP (4.94 ton ha-1) in Jhapa and (8.059 t ha-1)in Morang NE followed by FFP (4.52 ton ha-1). The net revenue of NE wheat in Morang was found to be increased by 344.799% while in maize the increment in net revenue of NE was only by 131.158% in Jhapa than in Morang. NE based practices produced significantly higher productivity and profitability in comparison with FFP.Int. J. Appl. Sci. Biotechnol. Vol 6(1): 45-52
Highlights
Wheat and maize are the most important cereal crops in Nepal
There is no difference among these two treatments in Jhapa maize in case of length of ear/ plant but significant difference in kernel no. shows that incomplete grain filling was found in case of FFP
Significant result was obtained for Comparison of Nutrient Expert® (NE) actual maize yield and gross revenue in farmer field trail and NE-based fertilizer recommendations proved to be successful while comparison
Summary
Due to lack of specific nutrient management of the fertilizer causes the severe loss in yield. Site-specific nutrient management (SSNM) integrates information from different scales to make field-specific decisions on N, P, and K management. SSNM is a set of nutrient management principles, which aims to supply a crop’s nutrient requirements tailored to a specific field or growing environment. It aims to account for indigenous nutrient sources, including crop residues and manures and apply fertilizer at optimal rates and at critical growth stages to meet the deficit between the nutrient needs of a high yielding crop and the indigenous nutrient supply (IRRI, 2011)
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