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寒地水稻磷素施用量的研究

作  者:
郑艳玲;赵丽琴;金立军
单  位:
北大荒农业股份有限公司七星研发中心
关键词:
水稻;产量;施磷量
摘  要:
利用小区对比的方法,研究水稻空育131对磷素的需求和施磷量的确定。结果表明,随着施磷量的增加,磷肥产量贡献率和磷肥的偏生产力降低;生产100kg稻谷吸磷量变化数值为0.52~0.68kg,平均为0.62kg;土壤基础供磷量为4.09kg/667㎡。在试验土壤条件下,土壤速效磷含量为25.8mg/kg时,施入磷肥表现为增产效果较低。空育131最高产量施磷量为2.27kg/667㎡,最高产量620.38kg;最佳产量施磷量为1.63kg/667㎡,最佳产量618.62kg/667㎡。
译  名:
Rice Phosphorus Fertilizer Research
作  者:
ZHENG Yan-ling,ZHAO Li-qin,JIN Li-jun(Beidahuang Qixing agricultural R & D Center Co.,Ltd.,Jiansanjiang 156300,China)
关键词:
rice;yield;P volume
摘  要:
In contrast to community studied 131 pairs of sterile rice empty Phosphorus needs and determine the amount of phos-phorus.The results showed that with the increase in phosphorus,phosphate fertilizer and phosphate fertilizer production in the contribu-tion rate of the partial productivity;production of 100 kilograms of rice P uptake changes in value of 0.52 ~ 0.68 kg,with an average 0.62 kg;foundation soil for phosphorus of 4.09 kg/667 ㎡.During the trial the soil conditions,soil available phosphorus content of 25.8 mg/kg,the applied phosphate to yield a lower performance.131 P maximum production capacity of 2.27 kg/667 ㎡,the maximum output of 620.38 kg;best production capacity of phosphorus 1.63 kg/667 ㎡,the best output of 618.62 kg/667 ㎡.

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