Nutrient indexing in Khasi mandarin grown on Indian Alfisols
Publish place: Agricultural Advances (AA)، Vol: 2، Issue: 7
Publish Year: 1392
Type: Journal paper
Language: English
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JR_AAJ-2-7_003
Index date: 24 February 2024
Nutrient indexing in Khasi mandarin grown on Indian Alfisols abstract
Extensive surveys were carried out covering a many as 40 orchards of Khasi mandarin in Nungba sub-division under Tamenglong district of Manipur, India. DRIS-based analysis predicted the optimum values of available nutrients in soil as: N 142.4-222.3 %, P 5.9-8.2%, K 110.5-270.3%, Ca 152.4-281.3%, Mg 28.3-79.4%, Fe 32.4-49.2ppm, Mn 26.6-41.1ppm, Cu 0.89-1.4ppm, Zn 1.2-2.4 ppm in relation to fruit yield of 28.2-49.6 kg/tree. While DRIS indices developed revealed an optimum value of different nutrients as: 1.86-2.62%N, 0.08-0.10%P, 0.89-1.86%K, 1.62-2.12% Ca, 0.40-0.50% Mg, 119.4-219.4 ppm Fe, 58.7-84.7 ppm Mn, 2.2-3.3 ppm Cu, and 20.8-29.8 ppm Zn in relation to fruit yield of 28.2-49.6 kg/tree. Nutrient constraints in the form of N, P, Ca, Mg, Cu, and Zn were identified using these diagnostics which must find a due place in a fertilizer program of mandarin orchards of the region to obtain sustainable optimum fruit yield. Various nutrients in the order of decreasing influence on yield were rated as: : Zn < P < Ca < Mg < N < K < Fe < Mn < Cu through leaf analysis. While through soil analysis, DRIS indices showed different nutrients influencing the fruit yield as: Ca < Mg < P < Zn < N < K < Cu < Mn < Fe.Extensive surveys were carried out covering a many as 40 orchards of Khasi mandarin in Nungba sub-division under Tamenglong district of Manipur, India. DRIS-based analysis predicted the optimum values of available nutrients in soil as: N 142.4-222.3 %, P 5.9-8.2%, K 110.5-270.3%, Ca 152.4-281.3%, Mg 28.3-79.4%, Fe 32.4-49.2ppm, Mn 26.6-41.1ppm, Cu 0.89-1.4ppm, Zn 1.2-2.4 ppm in relation to fruit yield of 28.2-49.6 kg/tree. While DRIS indices developed revealed an optimum value of different nutrients as: 1.86-2.62%N, 0.08-0.10%P, 0.89-1.86%K, 1.62-2.12% Ca, 0.40-0.50% Mg, 119.4-219.4 ppm Fe, 58.7-84.7 ppm Mn, 2.2-3.3 ppm Cu, and 20.8-29.8 ppm Zn in relation to fruit yield of 28.2-49.6 kg/tree. Nutrient constraints in the form of N, P, Ca, Mg, Cu, and Zn were identified using these diagnostics which must find a due place in a fertilizer program of mandarin orchards of the region to obtain sustainable optimum fruit yield. Various nutrients in the order of decreasing influence on yield were rated as: : Zn < P < Ca < Mg < N < K < Fe < Mn < Cu through leaf analysis. While through soil analysis, DRIS indices showed different nutrients influencing the fruit yield as: Ca < Mg < P < Zn < N < K < Cu < Mn < Fe.
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Nutrient indexing in Khasi mandarin grown on Indian Alfisols authors
I. Sarangthem
Department of Soil Science & Agricultural Chemistry, College of Agriculture, Central Agricultural University, Imphal, India-۷۹۵۰۰۴, India
L. D. Sharma
Department of Soil Science & Agricultural Chemistry, College of Agriculture, Central Agricultural University, Imphal, India-۷۹۵۰۰۴, India
A. K. Srivastava
National Research Centre for Citrus, Nagpur, Maharashtra, India
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