叶龄诊断施肥法对水稻产量的影响  

Effect of Leaf-Age-Diagnosis Fertilization on Yield of Rice

作　　者：聂守军 史冬梅 谢树鹏 刘静[2] 

机构地区：[1]黑龙江省农科院绥化分院,黑龙江绥化152052 [2]建三江管理局胜利农场,黑龙江佳木斯154000

出　　处：《北方水稻》2009年第1期38-39,70,共3页North Rice

摘　　要：叶龄诊断施肥方法根据水稻品种、生育期、特征特性等来确定不同施肥量与施肥时期,且根据叶龄进展及叶片长势来判断水稻生育进程,及时采取有效措施,为进一步掌握此项技术,特进行试验。结果表明,在施肥量为纯N116.8 kg/hm2时,产量可达8 540.9㎏/hm2,比纯N为70.0、93.4、140.1 kg/hm2的处理分别增产8.2%、4.4%、3.5%;叶龄诊断法比常规施肥法增产4.0%;在施肥量为纯N116.8 kg/hm2时,叶龄诊断法产量最高达到8 717.3 kg/hm2。Leaf-age-diagnosis fertilization method is to determine fertilizing amount and time according to rice varieties, growth period and features and is also to judge rice growth procedure and to take effective measures by leaf age progress and leaf growth status. The results showed that the yield reached 8 540.9 kg/hm^2 when the N amount was 116.8 kg/hm^2, increasing by 8.2%, 4.4% and 3.5% compared with N amounts 70.0, 93.4 and 140.1 kg/hm^2. The leaf-age-diagnosis fertilization method yielded 4.0% more than conventional fertilization method. The yield reached 8 717.3 kg/hm^2, the highest, when the N was 116.8 kg/hm^2 by leaf-age-diagnosis.

关 键 词：叶龄诊断 氮肥 产量 绥粳8号 

分 类 号：S511.062[农业科学—作物学]