摘要
通过大区试验研究了钾镁肥对水稻生育动态和产量的影响,研究结果表明:施用钾镁肥可增加水稻的干物质积累量,处理6、处理7在各时期的干物质生产量较大,明显高于对照;提高了水稻的叶面积指数,处理6、7、8叶面积指数均较高;减缓叶片衰老,增加了后期的叶片含氮量;垦粳1号处理7产量最高,稻谷产量657 kg/667 m2,较对照增产9.7%。空育131处理4产量最高,稻谷产量658.3 kg/667 m2,其次为处理7,稻谷产量649.3 kg/667 m2,分别比对照增产10.4%和8.9%。
This paper investigates effects of potassium and magnesium fertilizer on the yield of rice by large plot test。 The results showed that potassium and magnesium can increase the dry matter accumulation of rice,treatment 6,7 is with significantly higher than the CK in each period,improve the rice leaf area index in treatment 6,7,8,slow leaf senescence and increasing the late leaf nitrogen content.Treatment 7 is highest yield in KJ1with 657 kg/667 m2,9.7% higher than the CK.Treatment 4 is highest yield in KY131 with 658.3 kg/667 m2,the secondly with 649.3 kg yield per mu on treatment 7,respectively increase production 10.4%,8.9% than the CK.
出处
《北方水稻》
CAS
2012年第6期26-29,33,共5页
North Rice
关键词
水稻
钾、镁肥
产量
Rice
Potassium
magnesium fertilizer
Yield
