J Integr Plant Biol. ›› 1976, Vol. 18 ›› Issue (4): -.

• Research Articles •    

The Way to Gain High and Stable Yield of Cotton in Large Area

Agricultural Bureau, Chi Dong County, Kiangsu   

Abstract: Since 1964, our county carried out the movement "In agriculture, learn from Tachai", we have obtained high and stable yield of ginned cotton at the level of 130–140 jin per mu year after year. In 1975, though our county was hit by severe natural disaster, we overcame it, won a good harvest, obtained 161 fin of ginned cotton per mu. Our main experiences are summarized as follows: 1. Close planting. The planting density is about 6500 plants per mu. 2. Field management. The principle of fertilizer application is to promote seedlings, stabilize buds and gain more bolls. We applied fertilizer 25–30 jin per mu of which over 20 jin fertilizer per mu was applied at flowering and bolling period. 3. Grasp prevention of Tetranychus bimaculatus Harvey and Pectinophora gessypiella Saunders for high yield and good quality of cotton.

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