Winter maize as affected by preceding rainy-season crops, farmyard manure and nitrogen levels
DOI:
https://doi.org/10.59797/ija.v58i4.4233Keywords:
Crop production, Cropping system, Nitrogen, FYM, Rice, Soybean, Winter maizeAbstract
A field experiment was carried out during 200506 and 200607 at the Punjab Agricultural University, Ludhiana, to study the effect of preceding rainy-season ( kharif) crops, viz. soybean [ Glycine max (L.) Merr.], maize ( Zea mays L.) and rice ( Oryza sativa L.), farmyard manure 0 and 20 t/ha and nitrogen 0, 100, 140, 180 and 220 kg/ ha on winter maize. Winter maize grown after soybean recorded significantly higher growth parameters, yield at- tributes and yield than after maize and rice. Application of farmyard manure (FYM) significantly increased the yield. The increase in grain yield with 20 t/ha FYM application was 7.8% over no FYM application. Maximum grain yield was obtained with 220 kg N/ha, being 60% higher than the control. Higher benefit: cost ratio was obtained with maizewinter maize followed by soybeanwinter maize and the lowest with ricewinter maize cropping sys- tem. The benefit: cost ratio increased with increasing level of nitrogen and the minimum benefit: cost was obtained with the control (no nitrogen) and maximum with 180 and 220 kg N/ha.References
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