Macronutrient status and yield stability of arecanut (Kahikuchi) under integrated nutrient management practice in Assam
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Date
2015-12
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Abstract
A long term field experiment was carried out in clay-loam soil at ICAR-CPCRI, Kahikuchi campus, Guwahati, Assam during
2000-2012 with arecanut variety Kahikuchi with seven nutrient combinations. The treatments included control (T1), 100 per cent
vermicompost (T2), 200 per cent vermicompost (T3), 100 per cent chemical fertilizer (T4), 50 per cent vermicompost + 50 per
cent chemical fertilizer (T5), 1/3rd vermicompost + 2/3rd chemical fertilizer (T6) and 2/3rd vermicompost + 1/3rd chemical fertilizer
(T7). The treatment T7 produced highest fresh ripened arecanut yield of 16.7 kg i.e., about 3.6 kg dry chali per palm. Positive
correlations were obtained between yield of arecanut and soil available N, P and K content. Significant and positive correlation
was found between leaf N, P, K and available N, P and K content in surface and sub-surface soil. Available N, P and K content
increased over the years under nutrient applied plot that reflected in yield of arecanut. The average yield in various treatments
followed in the order of T7 > T5 = T6 > T2 = T3 > T4 > T1. The application of targeted, sufficient and balanced quantities of
organic and inorganic fertilizer will be the need of the hour to make nutrients available for higher yield, soil fertility maintenance
and agricultural sustainability without polluting environment.
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Keywords
Arecanut yield, nutrient combination, soil fertility status, vermicompost
Citation
Journal of Plantation Crops, 2015, 43(3): 212-217