Effect of row ratio and fertility levels on productivity, economics and nutrient uptake in maize (Zea mays) + soybean (Glycine mar) intercropping system
DOI:
https://doi.org/10.59797/ija.v51i3.5002Keywords:
Maize+soybean inercropping, Row ratio, Fertility levels, Maize equivalent yield, Nutrient uptake.Abstract
A field experiment was conducted during the rainy seasons of 2003 and 2004 at Udaipur, to study the effect of row ratios and fertility levels on maize (Zea mays L.) + soybean [Glycine max (L.) Merr.] inercropping system in south Rajasthan. The highest maize-equivalent yield was observed with 2:2 maize + soybean intercropping sown at 30 at 30 cm distance with each other. Application of 75% recommended dose of fertilizer (RDF) to maize (90 kg Nlha and 40 kg Plha) and 50% to soybean (60 kg Nlha and 40 kg Plha) significantly increased their re- spective yields, maize-equivalent yield, net returns and benefit : cost ratios over 50% RDF in maize and no fertil- izer in soybean. The nutrient uptake by maize was highest with 1 :I ratio, while by soybean it was with 3:3 ratios. Increasing levels of fertility to maize and soybean up to 100% recommended dose increased the total nutrient uptake significantly over 75 and 50% in the both crops in intercropping system.References
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