A field experiment entitled “Performance of cowpea [Vigna unguiculata (L.) Walp) under different levels of phosphorus and potassium in combination with biofertilizers” was conducted at crop research farm of Division of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, during kharif 2018. The soil of the experimental field was clay loam in texture, neutral in reaction (pH = 6.9), low in available nitrogen, low in available phosphorus, medium in available potassium and medium in organic carbon. The experiment was laid in RBD design having nine treatments and three replications. The observation revealed that grain yield (10.57 qha-1), straw yield (18.94 qha-1), yield attributes was high with the application of RDF (30N+60P2O5+30K2O) kg ha-1 + seed inoculation with PSB and KSB than other treatments. The RDF+ seed inoculation with PSB and KSB recorded 15.89% high grain yield than RDF (30N+60P2O5+30K2O) kg ha-1. B:C was also recorded more with application of RDF + seed inoculation with PSB and KSB (2.99) and was followed by RDF + seed inoculation with PSB (2.62) whereas lowest benefit cost ration was recorded with control treatment (2.24).
A field experiment entitled “Performance of sweet corn hybrids (Zea mays saccharata) as influenced by soil and foliar application of zinc” was conducted during kharif 2018 at the Experimental Farm of the Division of Agronomy, Wadura, SKUAST-K. The experiment comprised of two factors with three sweet corn hybrids, viz., Sugar 75, FSCH 75 and CMVL SC and four zinc levels, viz., soil application of ZnSO4 @ 20 kg ha-1, soil application of ZnSO4 @ 15 kg ha-1 + ZnSO4 (0.5%) foliar spray at knee high stage, soil application of ZnSO4 @ 15 kg ha-1 + ZnSO4 (0.5%) foliar spray at tasseling stage and ZnSO4 @ 15 kg ha-1 + ZnSB @ 200 ml/kg of seed laid out in randomized complete block design (RCBD) with three replications. The results of the experiment revealed that hybrids had a significant effect on the yield attributes and yield of sweet corn and among different hybrids, Sugar 75 recorded significantly higher yield attributes and yield of sweet corn. However, hybrids had no effect on number of cobs per plant. Hybrid FSCH 75 recorded significantly lowest values for yield attributes and yield. Among zinc levels, soil application of ZnSO4 @ 15 kg ha-1 + ZnSO4 (0.5%) foliar spray at knee high stage produced significantly higher yield attributes and yield whereas zinc level ZnSO4 @ 15 kg ha-1 + ZnSB @ 200 ml/kg of seed recorded significantly lowest values of all the yield attributes and yield. However, zinc levels had no effect on number of cobs per plant. The economic analysis showed that highest net profit and benefit cost ratio of ₹466230.5 and 4.37 respectively was recorded by hybrid sugar 75 applied with zinc level of ZnSO4 @ 15 kg ha-1 + ZnSO4 (0.5%) foliar spray at knee high stage whereas lowest net profit and benefit cost ratio of ₹294742.5 and 2.76 respectively by hybrid FSCH 75 applied with zinc level, ZnSO4 @ 15 kg ha-1 + ZnSB @ 200 ml/kg of seed.
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