摘要
Abstract
In Taicheng Town and Duhu Town of Taishan City in 2015,we carried out the demonstration experiment of reducing the amount of formula fertilization in rice.The results showed that pre fertilization of 37.5 kg/hm2 high nitrogen compound liquid fertilizer+spraying high potassium compound liquid fertilizer in soil,in the case of reducing the amount of 25%formula fertilizer,yields increased by 4.2%~4.7%the increasing revenue and reducing expenditure were 934.5~1 159.2 yuan/hm2;pre fertilization of 750 kg/hm2 organic fertilizer+37.5 kg/hm2 high nitrogen compound liquid fertilizer+spraying high potassium compound liquid fertilizer in soil,in the case of reducing the amount of 50%formula fertilizer,yields increased by 3.0%~7.7%the increasing revenue and reducing expenditure were 827.1~2 048.7 yuan/hm2.On the basis of compr-ehensive application of soil testing,the demonstration research on the reduction of formula fertilizer of rice by adding organic fertilizer and gradually reducing formula fertilizer,to provide the basis for the target of the“in 2020 the total amount of fertilizer use zero growth”.关键词
水稻/配方肥/产量/经济效益Key words
rice/formula fertilizer/yield/economic benefits分类
农业科技
