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设置4个施肥处理的田间定位试验,定期调查分析不同培肥措施对稻谷生产,吸肥规律和土壤理化性质的影响,以及它们的经济效益。结果表明,经过4年观察,化肥处理稻谷产量高于施有机肥处理,但增产幅度渐减,与有机肥加化肥处理产量已接近;稻谷、稻草产量与吸肥量呈正相关;每元肥料投资增产增收效益是有机肥处理高于施有机肥加化肥区和纯化肥处理。综合分析结果,则是施有机肥加化肥处理最佳。
The field experiment of four fertilization treatments was set up. The effects of different fertilization treatments on the paddy production, the law of fertilization, and the physico-chemical properties of paddy soil were investigated regularly and their economic benefits were analyzed. The results showed that after 4 years of observation, the yield of fertilizer-treated rice was higher than that of organic manure, but the rate of increase was decreasing, and the yield of organic fertilizer and chemical fertilizers was close. The yield of rice and straw was positively correlated with the amount of fat absorbed. Yield and income efficiency is higher than the organic manure application of organic fertilizer and fertilizer area and pure fertilizer treatment. Comprehensive analysis of the results, it is best to apply organic fertilizer and fertilizer.