Soil fertility and yield-limiting nutrients in oil palm plantations of north-eastern state Mizoram of India. (9th May 2017)

• Record Type: Journal Article
• Authors: Behera, S. K.; Suresh, K.; Rao, B. N.; Ramachandrudu, K.; Manorama, K.; Harinarayana, P.
• Is Part Of: Journal of plant nutrition. Volume 40:Number 8(2017)
• Page Start: 1165
• Page End: 1171
• Publication Date: 2017-05-09
• Subjects: DRIS -- leaf nutrient -- oil palm -- optimum range -- soil properties; Plants -- Nutrition -- Periodicals; Plants -- Effect of minerals on -- Periodicals; Deficiency diseases in plants -- Periodicals; 575.76
• DOI: 10.1080/01904167.2016.1264592
• Languages: English
• ISSNs: 0190-4167

Abstract

ABSTRACT: A survey was conducted for assessment of soil fertility status, leaf nutrient concentration and finding yield-limiting nutrients of oil palm ( Elaeis guineensis Jacq.) plantations in Mizoram state situated in the northeastern part of India. Soil pH, electrical conductivity (EC), organic carbon (OC), available potassium (K), available phosphorus (P) (Bray's-P), exchangeable calcium (Ca) (Exch. Ca) and magnesium (Mg) (Exch. Mg), available sulfur (S) (CaCl2 -S), and hot-water-soluble boron (B) (HWB) content in surface (0–20 cm depth) and subsurface (20–40 cm depth) soil layers varied widely. Diagnosis and Recommendation Integrated System (DRIS) norms were established for different nutrient expressions, and DRIS indices were computed. As per DRIS indices, the order of requirement of nutrients was found to be B > K > Mg > P > nitrogen (N). Optimum leaf nutrient ranges as per DRIS norms varied from 1.91% to 2.95%, 0.46% to 0.65%, 0.63% to 1.00%, 0.48% to 0.88%, and 9.41 to 31.0 mg kg − 1 for N, P, K, Mg, and B, respectively. On the basis of DRIS-derived optimum ranges, 32%, 9%, 27%, 12%, and 12% leaf samples had less than optimum concentration of N, P, K, Mg, and B, respectively. The optimum ranges developed could be used as a guide for routine diagnostic and advisory purpose for efficient fertilizer application.