Growth Indices of Bt and Non Bt High Density Planted Cotton as Influenced by Integrated Nutrient Management Practices

G. Vinay *

Department of Agronomy, College of Agriculture, Rajendranagar, India.

K. P. Vani

Department of Agronomy, Agricultural College, Sircilla, India.

B. Padmaja

AICRP on Weed Management Rajendranagar, India.

G. Jayasree

Department of Soil Science and Agricultural Chemistry, Agricultural College, Rajendranagar, India.

S. Triveni

Department of Microbiology and Bio Energy, College of Agriculture, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyd-500030, India.

*Author to whom correspondence should be addressed.


Abstract

A field experiment was conducted at College Farm, Agricultural College, Rajendranagar, Hyderabad, during kharif 2019-20 and 2020-21 to study the effect of genotypes and integrated nutrient management practices on growth of HDPS cotton. Experiment was laid out in Split plot design, with two genotypes as main plots (M) and nine Integrated Nutrient Management practices as sub-plots (S). Among genotypes, Leaf Area Index (LAI), Absolute Growth Rate (AGR), Relative Growth Rate (RGR), Net Assimilation Rate (NAR) were recorded with Bt (KCH-14 K59 BG II) compared to Non-Bt (ADB-542) during kharif 2019-20 and 2020-21. Among integrated nutrient management treatments, significantly higher LAI, AGR, RGR, NAR were observed with 100% RDF + soil application  Jeevamrutha @ 500 L ha-1 at 15 days interval up to harvest (S5) during both years and which was comparable with 100 % RDF + Foliar spray of Jeevamrutha @ 5% at 15 days interval up to harvest (S7) and 100 % RDF (S3), respectively. Finally, Bt cotton had recorded LAI, AGR, RGR, NAR than non Bt. Among integrated nutrient management practices, S5 had recorded maximum LAI, AGR, RGR, NAR.

Keywords: HDPS cotton, Jeevamrutha, INM, leaf area index, net assimilation ratio


How to Cite

Vinay , G., K. P. Vani, B. Padmaja, G. Jayasree, and S. Triveni. 2023. “Growth Indices of Bt and Non Bt High Density Planted Cotton As Influenced by Integrated Nutrient Management Practices”. International Journal of Environment and Climate Change 13 (9):101-11. https://doi.org/10.9734/ijecc/2023/v13i92210.

Downloads

Download data is not yet available.