National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field investigation relating to “Effect of levels of gypsum on pattern of moisture use and aggregation in Vertisols under soybean-chickpea - sequence” was conducted at Agronomy farm, College of Agriculture, Nagpur. The field experiment was laid out in randomized block design (RBD) with a seven treatments replicated thrice. Treatments consisted of 1, 1.5, 2, 2.5, 3, 5 t gypsum per hectare and a control. The samples were taken from (0-30 cm) and (30-60 cm) depth for conducting study. The surface soil of experimental site was slightly alkaline in reaction clayey in texture, medium in organic carbon (6.21 kg-1), low in available nitrogen (206.98 kg), medium in phosphorus (19.23 kg ha-1), high in potassium (503.00 kg ha-1) poor in hydraulic conductivity (1.06 cm ha-1). The CEC of surface and subsurface soil was 52.16 and 53.70 [cmol (p+) kg-1] and Ca/Mg ratio of was 1.30 and 1.21 respectively. Application of gypsum does not markedly affect the cumulative moisture use during and at different percent growing season of soybean and chickpea. However MUE of soybean significantly increased with increasing level of gypsum. Higher MUE was found with T6 (3 t gypsum ha-1) but T3 (1.5 t gypsum ha-1) is enough to increase MUE of soybean significantly over no gypsum. Increasing level of gypsum also increase the MUE of chickpea.
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