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Studies on growth, yield and nutritional status of water Chestnut (Trapa bispinosa Roxb) as influenced by planting variables, nutrient management and plant protection measures

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Title Studies on growth, yield and nutritional status of water Chestnut (Trapa bispinosa Roxb) as influenced by planting variables, nutrient management and plant protection measures
 
Creator Poddar, Parthendu
 
Contributor Puste, A.M.
 
Subject Agronomy
Water Chestnut
Nutritional status
Plant protection
 
Description With the objective to evaluate the most economically viable and practically feasible package of practices like seed rate, spacing, method of sowing as well as to optimize the nutritional dose and plant protection measures for the crop Water Chestnut (Trapa bispinosa Roxb.), three field experiments were conducted in the farmers' field at Kalinarayanpur, Nadia, West Bengal during the period from March to December in the year 1998 and 1999. Experiment-I was on the effect of planting variables on the growth, yield and nutritional status of water chestnut, fitted in randomized block design with four replications and five treatments. Experiment-II was on the effect of different nutritional treatments on growth, yield and nutritional status of water chestnut fitted in split-plot design, replicated thrice, consisting of three main plot treatments. Experiment-III was on the effect of different plant protection measures on yield attributes, yield and nutritional status of water chestnut, set in randomized block design with four replications and five treatments. The results from experiment-I revealed that transplanting of 3 plants/stool with a spacing of 2m x 1.5m (P5) achieved the highest growth attributes. The highest yield attributing characters like volume of individual nut number of harvests and highest nut yield had done in favour of the same treatment. Variation in plantation methods had no significant effect on starch, sugar and protein content of nuts. Among the sub-plot treatments, S4 (spraying of N at the rate of 0.5% thrice at 20, 40 and 60 DAT) produced the highest growth attributes, followed by S3 (spraying of N at the rate of 0.5% twice 20 and 60 DAT). Highest value of starch, sugar and protein was achieved by main plot treatment B2. Effect of sub-plot treatments on nutritional status of nut was very patchy. From the results of experiment-III, it was clear that P2 (seedling root dipping with chloropyriphos 0.2% for 8-12 hrs. before transplanting and carbendazim 0.1% or captan 0.1% spray as per requirement) obtained higher yield attributes and yield. P2 and P3 (spraying of carbaryl 0.1% with captan 0.1% as needed) gained 59.6% and 57.8% higher yield over control respectively. Plant protection measures had no significant effect on nutritional status of water chestnut.
 
Date 2016-09-28T11:57:22Z
2016-09-28T11:57:22Z
2002-07-26
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/79262
 
Language en
 
Format application/pdf
 
Publisher Department of Agronomy, F/Ag. Bidhan Chandra Krishi Viswavidyalaya