2006•Reclaiming and Rice CultivationRequires access
Effects of potassium fertilizer application on crop yields in a rice-planting region of south Henan Province
Wei Fa-tian
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Abstract
The effects of potassium(K) fertilizer application on the yield of rice,wheat,and rape was carried out with field trial in a rice-plant region of south Henan province.The results showed that K fertilizer could significantly increase the crop yield.The yield was significantly increased with 124.5kg/hm2,124.5kg/hm2 and 186.75kg/hm2 of K application treatments in rice,wheat and rape fields,respectively.The highest yield of rice,wheat,and rape,through calculation of the equation,was 6869.3 kg/hm2,3517.1 kg/hm2,2424.2 kg/hm2 with 146.6 kg/hm2?145.6 kg/hm2?183.6 kg/hm2 of K fertilizer input,respectively.