Effect of foliar supplementation of N, P and K on nutrient dynamics and productivity of pearl millet (Pennisetum glaucum)

SURGYAN RUNDLA; R.C. BAIRWA; RAMESH CHOUDHARY; S.P. SINGH

doi:10.59797/ija.v63i4.5696

Authors

SURGYAN RUNDLA Department of Agronomy, Chaudhary Charan Singh Haryana Agriculture University, Hisar, Haryana
R.C. BAIRWA Department of Agronomy, College of Agriculture, Bikaner, Rajasthan
RAMESH CHOUDHARY Agriculture Research Station, Jodhpur, Rajasthan
S.P. SINGH Department of Agronomy, Agriculture Research Station, Bikaner, Rajasthan

DOI:

https://doi.org/10.59797/ija.v63i4.5696

Keywords:

Economics, Foliar supplementation, Nutrient uptake, Pearl millet, Phosphorus, Potassium, Yield

Abstract

A field experiment was conducted at Bikaner, Rajasthan during rainy (kharif) season of 2016 to study the effect of foliar supplementation of N, P and K on nutrient content, uptake and productivity of pearl millet [Pennisetum glaucum (L.) R. Br. emend Stuntz]. The experiment was laid out in randomized block design with 3 replications. The treatments comprised 14 combinations of N, P and K applied through basal application, foliar application and top-dressing. The results revealed that, application of N, P and K through foliar supplementation significantly influenced the nutrient content and uptake in pearl millet. Application of 75% RDF of N (50% basal + 25% top-dressing at 25 DAS) : P : K + 1.5% spray of NPK (18:18:18) at 35 DAS resulted in maximum crude protein content (11.58%), total N uptake (70.7 kg/ha), total P uptake (13.1 kg/ha), total K uptake (74.0 kg/ha), ear-head length (32.4 cm), grain weight per ear-head (23.3 g), grain yield (2.13 t/ha), biological yield (6.88 t/ha) and B:C ratio (2.16) under hot arid conditions of western Rajasthan.

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