EFFECT OF DIFFERENT SOURCES AND LEVELS OF ZINC ON GROWTH, YIELD AND QUALITY OF WHEAT.
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Date
2023-02-09
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth Akola, Maharashtra
Abstract
A field study entitled “Effect of different sources and levels of zinc on growth, yield and quality of wheat” was conducted during Rabi 2021-2022 at Wheat Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The experimental soil collected from the wheat research unit field was slightly alkaline in reaction, medium in organic carbon, moderately calcareous, low in available N, medium in available P, remarkably high in available K, marginal in available S, and sufficient in micronutrients but deficient in Zn.
The nine treatments comprised of Recommended Dose of Fertilizer T1 - RDF (80:40:40 kg ha-1 N, P2O5, K2O), T2 - RDF + soil application of ZnSO4 @ 15 kg ha-1, T3 - RDF + soil application of ZnSO4 @ 30 kg ha-1, T4 - RDF + soil application of Zn EDTA @ 1.5 kg ha-1, T5 - RDF + soil application of Zn EDTA @ 3.0 kg ha-1, T6 - RDF + Foliar application of ZnSO4 @ 0.5% at CRI, tillering and milking stage, T7 - RDF + Foliar application of ZnSO4 @ 1.0% at CRI, tillering and milking stage, T8 - RDF + Foliar application of Zn EDTA @ 0.25% at CRI, tillering and milking stage, T9 - RDF + Foliar application of Zn EDTA @ 0.5% at CRI, tillering and milking stage. applied in the plots in Randomized Block Design with three replications.
The significantly highest wheat yield, plant height, dry matter accumulation, number of tillers, and Number of grains spike-1 were observed in the treatment of soil application of RDF + soil application of ZnSO4 @ 30 kg ha-1. The highest test weight, carbohydrates, and protein content were also observed in the treatment of soil application of RDF + soil application of ZnSO4 @ 30 kg ha-1. The higher N, P, K, S, Zn, Fe, Cu, and Mn content and uptake was recorded with the soil application of RDF + soil application of ZnSO4 @ 30 kg ha-1. The highest available N, P, K, S, Zn, Fe, Cu and Mn in soil were recorded with the soil application of RDF + soil application of ZnSO4 @ 30 kg ha-1.
It is concluded that the soil application of ZnSO4 @ 30 kg ha-1 along with a recommended dose of fertilizer (RDF) at the time of sowing recorded the highest wheat grain and straw yield, nutrient content, nutrient uptake, improvement in grain quality, viz., test weight, carbohydrates, and protein content of wheat with improvement in soil fertility. Also, concluded that soil application was better than a foliar application of zinc.
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Gawande, Yugraj Dharmaraj (2022). Effect of different sources and levels of zinc on growth, yield and quality of wheat. Department of Soil Science and Agricultural Chemistry, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2022. Print. xiv, 107p. (unpublished).