Chemical fertilizer in conjunction with biofertilizer and vermicompost induced changes in morpho-physiological and bio-chemical traits of mustard crop
2017
Mondal, Tanushree | Datta, Jayanta Kumar | Mondal, Naba Kumar
To study the impact of reduced dose of chemical fertilizer and its combination with biofertilizer and vermicompost on morpho-physiological and biochemical traits of mustard (Brassica campestris cv. B9), field experiments were conducted during winter seasons of November to February 2011–2012 and 2012–2013 respectively in an old alluvial soil zone of Crop Research and Seed Multiplication Farm, Burdwan University, Burdwan, West Bengal, India. Mustard was cultivated using a full recommended dose of chemical fertilizer (N:P:K–100:50:50) and along with six different reduced doses of chemical fertilizer combined with biofertilizers and vermicompost. The performance of the crop was adjudged in terms of various parameters viz. leaf area index (LAI), leaf area duration (LAD), leaf area ratio (LAR), crop growth rate (CGR), net assimilation rate (NAR), photosynthetic rate (PR), harvest index (HI) and biochemical attributes such as total chlorophyll, sugar and proline content of physiologically active leaves of mustard. Differential significant (p<0.05) treatment response was reflected for the studied traits during crop maturity. The data revealed that vermicompost application significantly stimulated most of the studied attributes. It was concluded that 25% reduced dose of chemical fertilizer and its combination with vermicompost (T4) was optimum for most of the parameters studied as compared to the control at both crop stages.
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