Comparative efficiency of organic, inorganic and integrated nutrient management on growth, yield and quality of sprouting broccoli (Brassica oleracea L. var. italica) cv. Green Head
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Date
2014
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YSPU
Abstract
The present investigations entitled "Comparative efficiency of organic, inorganic and integrated nutrient management on growth, yield and uality of sprouting broccoli (Brassica oleracea L var italica Plenck) cv. Green Head" was carried our during rabi season of 2011- 12 and 2012-13 in the Experimental Farm of the Department of Vegetable Science, 1)1' Y S Parmar University of Horticulture and Forestry, Nanni, Solan (HP). Twenty five treatments combinations of inorganic (N, P and K), organic verrnicornposr, neern manure and FYM) and biofertilizers (Azotobacter and PSB) were replicated thrice in a plot having dimensions of 3.00 m x 2.70 In The experiment was laid out in a randomized complete block design and a spacing of 60 Clll x 45 em was followed Seed of sprouting broccoli cv. Green Head was sown in the nursery bed on 2nd week of September, 2011 and 2012. One month old seedlings were transplanted on 2nd week of October during both the years. The data were recorded 011 days taken to 50 per cent heading, plant height at maturity (ern), number of leaves per plant, head size (ern"), average head weight (g), number of marketable secondary heads/plant, average secondary head weight (g), yield pel' plot (kg) and per hectare (q), severity of black rot (%), vitamin A (I U), vitamin C (mgllOOg), protein (0/" by weight): uptake of N:P,K and micronutrient, (Zn, Cu, Mn, Fe), available N,P.K content in the soil before and after harvest and benefit: cost ratio. The results revealed that recommended dose of fertilizers + Azotobacter (5kglha) + PSB (5kglha) was rated as the best treatment (TI6) for characters like head size (em), average head weight (g), number of marketable secondary heads/plant, average secondary head weight (g), yield per plot (kg) and pel' hectare (q) and benefit: cost ratio followed by T2L i.e .. recommended dose of fertilizers (33.3 %) + FYM (33.3 %) + VC (33..3 %) + Azotobacter (5.0 kg/ha) + PSB (5.0 kg/ha) for characters like days taken to 50 per cent heading, plant height at maturity (em), number of leaves per plant, severity of black rot (%), vitamin A (I U), vitamin C (mglIOOg), protein (% by weight), uptake of N,P,K and micronurrients (Zn, Cu, Mn, Fe), available N,P,K content in the soil before and after harvest consistently during both the years. However, minimum values for all the characters studied were recorded by sole application of different organic manures and biofertilizers. It was concluded that integration of bioferti lizers, organic manures and reduced level of inorganic fertilizers gave better results and hence, there is a great scope of improvement in growth, yield, and quality of sprouting broccoli.
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