EFFECT OF POTASSIUM AND FOLIAR NUTRITION OF SECONDARY (Mg) AND MICRONUTRIENTS (Zn & B) ON YIELD ATTRIBUTES AND YIELD OF Bt - COTTON


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Authors

  • D. SWETHA, P. LAXMINARAYANA, G. E. CH. VIDYASAGAR, S. NARENDER REDDY and HARISH KUMAR SHARMA

Abstract

A field experiment was conducted during kharif, 2015-16 and 2016-17 in split plot design to access the performance of Bt- cotton hybrid (MRC 7201 BGII) at Hyderabad with potassium fertilization (K @ 0, K @ 60 and K @ 90 kg ha-1) as main treatments and secondary (Magnesium) and micro nutrients (Zinc and Boron) as sub plot treatments. Among the potassium levels during both the years 2015 and 2016, K @ 90 kg ha-1 recorded significantly more number of bolls plant-1 (34.4, 36.4), boll weight (2.4, 2.5 g), seed cotton yield (1941, 2591 kg ha-1), stalk yield (1967, 2755 kg ha-1) and harvest index (58.1, 47.4 %) respectively in comparison to K @ 0 and K @ 60. Among the secondary (Magnesium) and micro nutrients (Zinc and Boron), during 2015 and 2016, treatment Mg1%Zn0.5%B0.1% showed more number of bolls plant-1 (33.0, 36.2), boll weight (2.43, 2.80 g), seed cotton yield (1512, 2324 kg ha-1), stalk yield (1622, 2708 kg ha-1) and harvest index (52.5, 44.1 %) when compared with all other treatments.

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Submitted

2021-12-07

Published

2021-12-07

How to Cite

and HARISH KUMAR SHARMA, D. S. P. L. G. E. C. V. S. N. R. (2021). EFFECT OF POTASSIUM AND FOLIAR NUTRITION OF SECONDARY (Mg) AND MICRONUTRIENTS (Zn & B) ON YIELD ATTRIBUTES AND YIELD OF Bt - COTTON. The Journal of Research, PJTSAU, 48(3 & 4). Retrieved from https://epubs.icar.org.in/index.php/TJRP/article/view/118735

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