Status of macronutrients (N, P and K) in some selected tea growing soils of Sivasagar district of Assam, India.

  • Tara Nath Nath Deptt. of Chemistry, Moran College, Moranhat, Sivasagar, Assam
Keywords: KEY WORDS, Soil macronutrients, total organic matter content, fertilizers, physio-chemical properties and texture.

Abstract

ABSTRACT:

Soil macronutrients (N,P, and K) are essential to tea plants. The excessive application of commercial N, P, and K fertilizers on soil to high yield of tea can be increase the potentially hazardous element into the field, which has been cited as a source of contamination of surface and ground water. In this study, thirty composite soil samples were randomly collected from the top soil (0-20 cm) in some selected tea growing soils from the ten tea estates in Sivasagar district. The samples were analyzed for physio-chemical properties and total concentration of N, P and K. Soil textures were classified as sandy clay loam, sandy loam and sandy clay. The PH ranged from 4.28 to 5.36. The total organic matter content ranged from 2.18 to 3.12 % with mean value of 2.71 %. The nitrogen ranged from 0.124 to 0.242 mg/kg with a mean value of 0.179 mg/kg, phosphorus ranged from 43.56 to 154.38 mg/kg with a mean value of 103.06 mg/kg and potassium ranged from 2.32 to 3.08 meq/kg with a mean value of 2.66 meq/kg. Soil samples were found sufficient amount of total organic matter, nitrogen, phosphorous and potassium. Significance positive correlations were found to exist between PH, organic matter content and clay with total N, P and K status of soil under study.

Author Biography

Tara Nath Nath, Deptt. of Chemistry, Moran College, Moranhat, Sivasagar, Assam
Associate Professor &Head, Deptt. of Chemistry, Moran College

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Published
2014-09-26