Influence of Potassium, Secondary (Mg) and Micronutrients (Zn & B) on Growth, Yield Attributes and Yield of Bt -Cotton

D. Swetha *

Department of Agronomy, College of Agriculture, Rajendernagar-500030, Telangana, India.

P. Laxminarayana

Department of Agronomy, College of Agriculture, Rajendernagar-500030, Telangana, India.

G. E. CH. Vidyasagar

Department of Agronomy, College of Agriculture, Rajendernagar-500030, Telangana, India.

S. Narender Reddy

Department of Agronomy, College of Agriculture, Rajendernagar-500030, Telangana, India.

Harish Kumar Sharma

Department of Agronomy, College of Agriculture, Rajendernagar-500030, Telangana, India.

*Author to whom correspondence should be addressed.


Abstract

A field experiment was conducted to study the influence of potassium fertilization (K @0, K @60 and K @ 90 kg ha-1) and secondary (Magnesium) and micro nutrients (Zinc and Boron) on growth and yield parameters and yield of cotton hybrid Bt (MRC 7201 BGII) at Hyderabad, India during 2015-16 and 2016-17. The experiment was laid out in a split plot design with three main treatments and eight sub treatments and replicated thrice. Among the potassium levels, K @ 90 kg ha-1 recorded significantly higher plant height (76.86, 106.13 cm), number of seeds per boll (30.3, 30.9), seed cotton yield (1941, 2591 kg ha-1) and stalk yield (1967, 2755 kg ha-1) during 2015 and 2016. Among secondary (Magnesium) and micro nutrients (Zinc and Boron), Mg1%Zn0.5%B0.1% recorded highest plant height (74.65, 102.80 cm), dry weight (221.39, 243.54 g), number of seeds per boll (29.27, 29.87), seed cotton yield (1941, 2591 kg ha-1) and stalk yield (1967, 2755 kg ha-1) during 2015 and 2016.

Keywords: Potassium levels, secondary nutrients, micro nutrients, magnesium, zinc, boron


How to Cite

Swetha, D., P. Laxminarayana, G. E. CH. Vidyasagar, S. Narender Reddy, and Harish Kumar Sharma. 2022. “Influence of Potassium, Secondary (Mg) and Micronutrients (Zn & B) on Growth, Yield Attributes and Yield of Bt -Cotton”. International Journal of Environment and Climate Change 12 (10):157-64. https://doi.org/10.9734/ijecc/2022/v12i1030780.