Studies on Zinc and Ferrous Sulphate Application on Growth and Yield of Rabi Sorghum and Chickpea Intercrops in A Vertisol
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Date
2015-11
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University of Agricultural Science, Dharwad
Abstract
A field experiment was conducted at RARS. Vijayapur, University of Agricultural Sciences, Dharwad during rabi, 2014-15 to study the effect of zinc and ferrous sulphate application to soil on growth and yield of rabi sorghum + chickpea intercropping system. The soil of the experimental site was low in available Zn (0.54) mg kg-1) and available Fe (3.05 mg kg-1). The treatments included in the experiment were recommended dose of fertilizer (RDF), soil application of ZnSO4 @ 10, 15, 20 kg ha-1 and FeSO4 @ 10, 20, 30 kg ha-1 in combinations. The experiment was laid out in Randomized Complete Block Design (RCBD) with there replications and Twelve treatments, RPP (RDF @ 50:25:00 ::N:P2O5:K2O kg ha-1 + farm yard manure @ 2-3 t ha-1) were applied to all the treatments except RDF treatment. The results of field experiment revealed that, application of RPP + FeSO4 @ 30 kg ha-1 + ZnSO4 @ 20 KG ha-1 was recorded the highest plant height, dry matter production and grain yield of both crops and crude protein content in chickpea grains. However, the treatment RPP + FeSO4 @ 30 kg ha-1 + ZnSO4 @ 20 kg ha-1 was on par with RPP + FeSO4 @ 30 kg ha-1 + ZnSO4 @ 15 kg ha-1.
The experimental soil was deficient in zinc and iron. A good response of crops to applied zinc sulphate and ferrous sulphate was noticed. Further, yield and yield attributes, quality parameters (crude protein), nutrient uptake (N, P, K, S, Zn and Fe), available zinc and iron status and net returns were higher with the soil application of RPP + FeSO4 @ 30 kg ha-1 + ZnSO4 @ 20 kg ha-1.
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