Open AccessResidual effect of different sources of nutrients on P content in maize at different growth stages in rice fallow maize cropping system
Author(s) -
Mohana Rao Puli,
Pvn Prasad
Publication year - 2020
Publication title -
asian journal of soil science/asian journal of soil science
Language(s) - English
Resource type - Journals
eISSN - 0976-7231
pISSN - 0973-4775
DOI - 10.15740/has/ajss/15.2/86-90
Subject(s) - kharif crop , mathematics , randomized block design , vermicompost , agronomy , crop , fertilizer , nutrient , cropping system , biology , ecology
A Doctoral Research was conducted for two consecutive years (2011-2012 and 2012-2013) on fine texture soils of agricultural college farm, Bapatla to find out the residual effect of different sources of nutrients applied to preceding rice on P content in maize at different growth stages. The experiment was laidout in a Randomized Block Design in Kharif season with four treatments. The treatments consisted of M1 (RDF - Control), M2 (10t FYM ha-1 + RDF), M3 (1.5t vermicompost ha-1 + RDF), M4 (Green manuring + RDF). During the immediate Rabi, the experiment was laid out in a split-plot design without disturbing the soil for succeeding maize with the four treatments given to Kharif rice as main plot treatments and each of these divided into five sub-plots to receive five levels of fertilizer NPK application viz., N1 - 75%NPK, N2 - 100% NPK, N3 - 125% NPK, N4 - 150% NPK and N5 - 175% NPK for succeeding maize. Data collected on P content in maize at different growth stages was significantly increased with the application of 100% NPK in combination with FYM @10t ha-1 to preceding rice crop, irrespective of the NPK levels applied to succeeding maize crop. However, it was on par with that of green manuring together with 100% NPK during both the years of the study.