Title: Root Growth and Yield of Greengram (Vigna radiata (L.) Wilczek) as influenced by Increased Plant Density and Nutrient Management
Abstract: Field experiments were conducted during kharif 2002, rabi 2002 and summer 2003 at the College of Agricultural Engineering, Kumulur, Tiruchirappalli district of Tamil Nadu to study the effect of increased plant density and nutrient management on the root growth and yield of greengram. Three inter row spacings of 20 cm (S1), 25 cm (S2) and 30 cm (S3) with a constant intra row spacing of 10 cm accommodating 5.0, 4.0 and 3.33 lakh plants ha−1 were tried in the main plot. The treatments tried in sub plot were recommended N and P (N1), N1 with foliar spraying of one per cent sulphate of potash (SOP) (N2), N1 with soil application of 25 kg K2O ha−1 as muriate of potash (MOP) (N3), 125 per cent N and P with foliar spraying of one per cent SOP (N4), 150 per cent N and P with foliar spraying of one per cent SOP (N5) and 50 per cent N and P with foliar spraying of two per cent Diammonium phosphate (DAP) and one per cent SOP (N6). The treatments were fitted in a split plot design replicated thrice. The results of the experiments revealed that root length increased with increase in population from recommended level of 3.33 to 5.0 lakh plants ha−1 at all stages and seasons. Root volume was more with lesser population and it decreased with higher population at all stages and seasons. Functional root nodules were higher with recommended plant population of 3.33 lakh plants ha−1. Among the fertilizer levels, application of 125 per cent NP with foliar sprays recorded higher root length, root volume and functional root nodules and was followed by 150 per cent NP with foliar sprays. Higher plant density favoured the grain and bhusa yield. In general, yield were better when applied with 125 per cent NP along with foliar sprays during kharif 2002 and summer 2003 and 150 per cent NP with foliar sprays during rabi 2002.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 9
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