SOIL AND FOLIAR APPLICATION OF ZINC FOR DIFFERENT APPROACHES OF NUTRIENTS ON SOIL PROPERTIES, NUTRIENT UPTAKE, GROWTH AND YIELD OF MAIZE (Zea mays L.)
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Date
2020-11-20
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University of Agricultural Sciences, Bangalore
Abstract
A field experiment was conducted during kharif 2019 at Bellathur village of Gowribidanur taluk in Chikkaballapur district to study the influence of soil and foliar application of zinc for different approaches of nutrients on soil properties, nutrient uptake, growth and yield of maize. The experiment was laid out in RCBD with nine treatments and replicated thrice. The results revealed that STCR integrated (90 q targeted yield) with 10 kg ha-1 ZnSO4 as soil application + 0.5 % ZnSO4 as foliar spray has significantly increased the plant height (193.40 cm), number of leaves (14.90), cob length (19.00 cm), number of rows per cob (16.50), number of kernels per row (28.85) and test weight (31.30 g), kernel yield (91.83 q ha-1) and stover yield (118.24 q ha-1). Similarly, higher uptake of nitrogen, phosphorus, potassium and zinc (280.20 kg ha-1, 46.91 kg ha-1, 245.93 kg ha-1 and 842.95g ha-1 respectively) were recorded in STCR integrated (90 q targeted yield) with 10 kg ha-1 ZnSO4 as soil application + 0.5 % ZnSO4 as foliar spray. However, higher cost benefit ratio of 2.97 was found in STCR inorganics (90 q targeted yield) with 10 kg ha-1 zinc sulphate as soil application + 0.5 % zinc sulphate as foliar spray. Application of STCR based integrated nutrient with soil and foliar application of zinc enhanced the growth and yield of maize to achieve the targeted yield (90 q ha-1).