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《China Rice》 2018-03
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Effects of Application of Pig Slurry on Yield and Nitrogen Utilization of Direct Seeding Rice

XU Tian;GAO Wei;HUANG Lifen;ZHUANG Hengyang;Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University;  
In order to explore the application technology of pig slurry in direct seeding rice, an experiment was conducted to study the effects of wastewater application on dry matter accumulation, yield, leaf SPAD value, nitrogen content, nitrogen transfer rate, nitrogen harvest index and nitrogen grain production efficiency of direct seeding rice. The results showed that the application of pig slurry has obvious role in nitrogen supply. The combination of 120 m~3/hm~2 for base fertilizer and 120 m~3/hm~2 for panicle fertilizer, added with 225 kg/hm~2 urea in the tillering stage, compared with the conventional fertilization treatment, reduced 300 kg/hm~2 urea application, but increased actual yield by 6.6%. The treatments of total amount of pig slurry over 210 m~3/hm~2 could reach or exceed the yield of the conventional fertilization treatment.
【Fund】: 国家自然科学基金(31571596);; 江苏省科技支撑计划(BE2012433)
【CateGory Index】: S511
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