PJB-2022-281
UTILIZING ON-FARM RESOURCES WITH ORGANIC AND MINERAL FERTILIZERS FOR IMPROVING SOIL FERTILITY AND LEGUMES PRODUCTIVITY
Ikram Ullah
Abstract
The introduction of high-yielding cultivars and overgrowing population diverted farmers intensions to the use commercial fertilizers for getting maximum crop yield, that gradually decreased the use of farmyard manure (FYM) and cereal-legumes crop rotation. Therefore, long term experiment (two years) was carried out to study the comparative effect of organic (FYM at the rate of 10 t ha-1) and inorganic (NPK at the rate of 20:90:60 kg ha-1) fertilizers on soil fertility and the yield of different legumes crop i.e. (cowpea, mungbean, and sesbania), legumes crop were sown after wheat harvest. Applied FYM significantly improved the number of nodules plant-1 in all legumes as compared to control and NPK fertilizer. During the first year (2018), all the three legumes fertilized with NPK fertilizer results in significantly maximum biological and grain yields in comparison to FYM and control. However, during the second year (2019) experiment applied NPK and FYM to legumes produced statistically similar biological and grain yields, respectively. Similarly, the applied FYM significantly improved soil properties as compared to NPK and control over two years. Maximum N2 fixation, soil organic matter, soil, and plant total-N content was recorded in plots grown with sesbania + FYM as compared to the other two legumes, minimum soil total nitrogen and organic matter content was recorded in plots kept fallow. From the overall results, it was concluded that applying 10 t ha-1 FYM is a helpful strategy in utilizing farm resources, improving soil fertility and yield of legumes crop under the prevailing condition of the experiments
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