Abstract

Experiments were conducted to study the correlated effects of major nutrients on the dry matter production and seed cotton yield on the variety 'Suvin (G. borbadense Linn.) In relation to row, plant spacing and nitrogen. Under normal conditions of growth the nutrient absorption by individual plants was least affected by population density. The quantum of N. P and K removed per unit area was found to be inversely related to plant spacing.. Dry matter production and seed cotton yield were directly related to the levels of N supplied and inversely to increased plant spacings. Yield capacity, dry matter efficiency.. nitrogen capacity and nitrogen efficiency values were higher under 75 x 30 cm spacing with 80 kg N/ha. The analysis of direct and indirect affects showed that K and dry matter exerted maximum direct effects and, N and P maximum indirect effects via K on seed cotton yield.

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