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减氮配施有机肥对寒地水稻氮肥利用率和产量效益的影响

Effects of Reducing Nitrogen and Applying Organic Fertilizer on Nitrogen Utilization Rate and Yield Benefit of Rice in Cold Region
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摘要 为明确减氮配施有机肥对垦鉴稻6号氮肥利用率和产量效益的影响,采取随机区组设计进行试验研究。结果表明,相对常规化肥处理,在施用有机肥300 kg·hm^-2基础上,减氮10%、15%时不仅有利于水稻氮素积累的增加,而且氮肥农学利用率、吸收利用率得到显著提高,产量更是高达9.69 t·hm^-2、9.44 t·hm^-2,较对照分别提高了5.3%、2.6%,其中减氮10%较对照增加的纯效益为256.1元·hm^-2,产出效益达到最高。 Single-factor and randomized block design experiments were employed to confirmed the influences of nitrogen fertilizer utilization rate and yield benefit of Kenjiandao6.The results showed that,on the basis of applying 150 kg/hm^2 organic fertilizer,reducing nitrogen by 10%and 15%is not only beneficial to the increase of nitrogen accumulation in rice,but also to the improvement of agronomic utilization rate and absorption utilization rate.The yield was 9.69 t/hm^2 and 9.44 t/hm^2,which were 5.3%and 2.6%higher than the control respectively.The net benefit of 10%nitrogen reduction was 856.1 yuan/hm^2,and the output benefit was the highest.
作者 胡法龙 于洪明 沈宝山 HU Fa-long;YU Hong-ming;SHEN Bao-shan(Daxing Farm of Jiansanjiang Land Reclamation Bureau,Fujin Heilongjiang 156303,China;Heilongjiang Protecting of Seedlings Agricultural Science and Technology Development Co.LTD,Jiamusi Heilongjiang 154000,China;3852 Farm of Hongxinglong Land Reclamation Bureau,Shuangyashan Heilongjiang 155605,China)
出处 《北方水稻》 CAS 2020年第1期13-17,31共6页 North Rice
关键词 水稻 减氮 有机肥 氮肥利用率 产量 效益 Rice Nitrogen fertilizer reduction Organic fertilizer Nitrogen Fertilizer Utilization Rate Yield Benefit
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