Response of rhizospheric management on soil health and nutrient use efficiency in wheat (Triticum aestivum L.)
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Date
2020-02
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A field experiment entitled "Response of rhizospheric management on soil health and nutrient use efficiency in wheat (Triticum aestivum L.)" was conducted during rabi seasons of 2017-2018 and 2018-19 in the D-3 block of Norman E. Borlaug, Crop Research Centre (CRC) of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, District, Udham Singh Nagar (Uttarakhand). The experiment was conducted with 19 treatment combinations and 3 replications in a factorial randomized block design. The treatments were consisted of 3 different placement methods viz: Deep placement, surface application and Band placement, Six nutrient management options viz: 100% RDF (150:60:40 kg/ha NPK), 75% RDF (112.5:45:30 kg/ha NPK), 75% RDF +Vermicompost (2 q/ha), 75% RDF +Vermicompost (2 q/ha) +PSB (10 kg/ha), 75% RDF + Poultry manure (2 q/ha), 75% RDF + Poultry manure (2 q/ha) +PSB (10 kg/ha) with one absolute control. Results suggested that among the different placement methods; Deep placement performed significantly better over rest of the treatments in all the growth, yield attributing characters, yield parameters and soil health parameters. However, it was at par with Band placement. Among the nutrient management treatment, 75% RDF + Vermicompost+ PSB found to be significantly superior to the rest of the nutrient management options. It was also found at par with 100% RDF and 75 % RDF+ Poultry manure+ PSB. Absolute control plot recorded the lowest improvement in growth, yield attributes, yield and soil health. Combined application of Deep placement and 75% RDF+ Vermicompost +PSB or 75% RDF + poultry manure + PSB was found to be the best treatment as they resulted in yield enhancement and improvement in soil health. It also showed economical effectiveness compared to other treatments. Considering widespread low nutrient use efficiency of fertilizers, rhizospheric manipulation with fertilizer placement and nutrient management approach can help in improving both productivity and soil health along with a reduction in the rate of fertilizers. The addition of organic matter into the soil maximized the rhizospheric efficiency and nutrient use efficiency of wheat.