RoIe of boron in plant nutrition in Kerala in relation to its content in soils
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Date
1985
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Department of Soil Science and Agricultural Chemistry,College of Agriculture, Vellayani
Abstract
An investigation was carried out to elucidate the role of boron in crop nutrition especially in crops of relevance to Kerala in relation to its content in major upland soil types« 'Tho work included in tho present study is on four main soil types of Trivandrum district namely forest red 1aterite and sandy soil in relation to two major crops namely coconut and banana grown on them A critical evaluation of soil in relation to plant boron status of the four soil types revealed that forest soils are having the highest content of available boron as compared to other soil typos# The indicator plants in the study also showed a close parallel relationship to soil boron status. Between the indicator plant species chosen in all for soil types tho boron content of banana leaves were invariably higher than that of coconut leaves The soil factors like N, P, K and Ca content of tho soil did not show any correlation with the available boron of tho soil# Tho organic matter content of tho soil showed a significant positive correlationship with tho available boron status in sandy soils. This suggests tho need for using organic manures in such soils whore boron deficiency occurs The hot water attractable boron shows a positive and significant correlation with the loaf boron status of both coconut and banana
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