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我们自1981年开始,在8个县市25万余亩的耕地上施用钾肥,获得明显的增产效果,现概述如下:一、增产效果及经济效益大面积施钾肥的示范是在亩施尿素30斤,磷肥50斤以及当地农家肥施用的水平上,每亩施氯化钾13斤。据统计,1981年晚稻施钾,平均亩产稻谷630.6斤,比上年同期亩增产202.9斤,增产率47.44%;1982年早、晚稻施钾,平均亩产556.8斤,比上年同期增产27.12%;玉米施钾平均亩产330.3斤,增产率29.77%;大豆施钾平均亩产152斤,增产179.9斤;甘蔗施钾亩产蔗茎4.69吨,增产96.2%。
Since 1981, we have been using potassium fertilizer over 250,000 mu of cultivated land in 8 counties and cities and have achieved significant yield increase. The results are summarized as follows: 1. Increasing yield and economic benefits The demonstration of applying large amount of potash fertilizer to Muchu urea 30 Kg, 50 pounds of phosphate fertilizer and the level of local manure application, 13 kg of potassium chloride per acre. According to statistics, in late rice in 1981, the average yield of rice was 630.6 kg, 202.9 kg more than that of the same period of last year, an increase rate of 47.44%. In 1982, the average yield of potassium in late rice was 556.8 kg, an increase of 27.12 over the same period of previous year The average yield per mu of 330.3 kg per mu in maize was 29.77%. The average yield of potassium per acre was 152 kg and the output was 179.9 kg. The sugarcane produced 4.69 tons of sugarcane per mu, yielding an increase of 96.2%.