alexa Effect Of Phosphorus On Tolerance Of Mungbean [Vigna Radiata (l.) Wilczek] To Chloride And Sulphate Salinity Of Loamy Sand Soil | 15777
ISSN: 2168-9881

Agrotechnology
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2nd International Conference on Agricultural & Horticultural Sciences

Atik Ahamad, B L Yadav, Arbind Kumar Gupta , Laxmi Kant Tripathi, J Sai Prasad, Manish Jha and Y Sudha Rani
Accepted Abstracts: Agrotechnol
DOI: 10.4172/2168-9881.S1.009
Abstract
A pot experiment was conducted during kharif 2012 at S K N College of Agriculture, Jobner (Rajasthan) to study the effect of phosphorus on tolerance of mungbean [ Vigna radiata (L.) Wilczek] to chloride and sulphate salinity of loamy sand soil. Mungbean occupies 3.4 million hectare area and contributes 1.4 million tonnes in pulse production in the country. The important mungbean growing states are Rajasthan, Maharashtra, Karnataka, Andhra Pradesh, Orissa, Tamil Nadu, Uttar Pradesh, Madhya Pradesh, and Bihar. The experiment was laid out in completely randomized design with three replications by taking five levels of saline water [0, 4 dSm -1 keeping Cl - : SO 4 2 - in 1:3 and 3:1 ratio and 6 dSm -1 keeping Cl- : SO 4 2 - in 1:3 and 3:1 ratio], three levels of phosphorus (0,10, 20 and 30 mg kg -1 phosphorus) as variables. Results revealed that total and effective number of nodules per plant, plant height, test weight, pods per plant, seeds per pod, seed and straw yield of mung bean, N, P and S content and uptake in seed and straw at harvest, and Na+ K/Ca and Na/Ca ratios in seed and straw decreased significantly with all level of salinity of irrigation water over control and magnitude of increase was more pronounced in Cl - dominated salinity as than that of SO 4 2 -- dominated salinity but S content in seed and straw increased significantly at all levels of salinity more with SO 4 2 -- dominated salinity except highest level of salinity (6dSm -1 ) whereas S content increased with Cl - dominated salinity. Available S of soil increased and available P and pH of soil decreased significantly with all level of salinity. The magnitude of increase and decrease was more pronounced in SO 4 2 -- dominated salinity. Application of phosphorus significantly increased the total number of nodules per plant, nodule index, plant height, test weight, pods per plant, seed per pod, seed and straw yield of mungbean. However, Ca, Mg, Na and K content in seed and straw at harvest, and Na/K and Ca/ Mg ratios in seed and straw decreased significantly with increasing level of application. The effect of application of P on EC, pH and SAR content of soil was found to be non significant.
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