“ACCUMULATORY EFFECT OF POST BIOMETHANATED SPENTWASH ON CARBON FRACTIONATIONS, YIELD AND QUALITY OF SOYBEAN-WHEAT CROPPING SEQUENCE ON INCEPTISOL’’
Loading...
Files
Date
2015
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Mahatma Phule Krishi Vidyapeeth, Rahuri.
Abstract
The post biomethanated spentwash, a distillery effluent is effective liquid organic manure and used as a chief source of plant nutrients. To study the possibility of maximum utilization of PBSW, by its continuous application either directly to soil or through irrigation for substitution of N doses of soybean-wheat crop sequence, the Central Pollution Control Board, New Delhi, was implementing the network project on biomethanated spentwash at MPKV, Rahuri, which was stared during the year 2006-07. The aim of the present investigation was to study the accumulatory effect of application of different levels (25, 50 and 100 %) of PBSW to supply (25, 50 and 100 %) N on carbon fractionations, yield and quality of soybean-wheat cropping sequence on Inceptisols. The field experiment was conducted during 2011-12 at Post Graduate Research Farm, MPKV, Rahuri in Kharif and Rabi season so as to study the accumulatory effect of PBSW application on carbon fractionations, yield and quality of soybean and wheat crop. The experimental soil was slightly alkaline, calcareous, clayey, low in available nitrogen and phosphorus and very high in available potassium and belongs to Pather soil series of Isohyperthermic family of Vertic Haplustepts. This was the fifth cycle (2007-08 to 2011-12) of sequence crop undertaken for studying the physical, chemical and biological properties of soil as influenced by continuous application of post biomethanated spentwash, while the study of carbon fractionations included during 2011-12. The two separate field experiments were conducted for application of PBSW viz., one time application of PBSW before sowing and application of PBSW through irrigation, which was laid out in a RBD with four replications and five treatments. The five treatments comprised RD-NPK, 100 % RD-N through PBSW without P chemical fertilizer, 100 % RD-N through PBSW + remaining P through chemical fertilizer, 50 % RD-N through PBSW + remaining N and P through chemical fertilizer and 25 % RD-N through PBSW + remaining N and P through chemical fertilizer. The PBSW was applied before one month of sowing of soybean & wheat crop in experiment of one time application method, whereas, in another experiment in which PBSW was applied through irrigation at 2nd and 3rd irrigations for soybean at 3rd, 4th and 5th irrigations for wheat.
Description
Keywords
null