Vol. 8 No. 1
Nitrogen and potassium nutrition in sapota grown in laterite soil
Author(s): S. N. GHOSH, S. ROY AND B. BERA
Abstract: Field studies were conducted in West Bengal, India, from 2006 to 2010, to determine the optimum nitrogen (N) and potassium (K) fertilizer requirement for higher yield and fruit quality of sapota (Manilkara zapota) cv. Cricket Ball on laterite soils. The treatments comprised 3 N (200, 300 and 400 g N/plant/year) and potassium levels (200, 300 and 400 g K/plant/year). Data were recorded on the growth, yield and yield components and fruit quality parameters (total soluble solids, ascorbic acid, sugar content, fruit weight, titratable acidity and pulp content). Leaf N, P and K contents were also determined. Results showed that the best treatment based on the above parameters was the 400 g N + 300 g K/plant/year.
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