氮肥减量调优对优良食味粳稻产量与品质的影响  

Effects of Nitrogen Fertilizer Reduction and Optimization on Yield and Quality of Excellent Edible Japonica Rice

作　　者：王坚纲[1] 周燕[1] 赵鸿 WANG Jian-gang;ZHOU Yan;ZHAO Hong(Jiangyin Agricultural Technology Extension Center,Jiangyin Jiangsu 214431,China)

机构地区：[1]江阴市农业技术推广中心,江苏江阴214431

出　　处：《北方水稻》2023年第4期35-37,共3页North Rice

基　　金：江苏现代农业产业技术体系建设项目-江苏(江阴)现代农业(稻麦)科技综合示范基地(项目编号:JATS[2021]042)。

摘　　要：2021年进行了氮肥减量、比例调优试验,结果表明:在减氮10%的情况下,控制基蘖肥与穗肥的比例在6∶4,减产幅度降低至3.3%左右,稻米食味值提高3.5分,整精米率提高4.31个百分点;控制基蘖肥与穗肥的比例在7∶3,稻米的食味值提高7分,整精米率提高3.04个百分点,减产幅度控制在5.9%左右。In 2021,the nitrogen fertilizer reduction and proportion tuning experiment was carried out,and the results showed that under the condition of nitrogen reduction of 10%,the ratio of controlled tiller fertilizer to panicle fertilizer was 6:4,the yield reduction was reduced to about 3.3%,the rice food taste value was increased by 3.5 points,and the whole polished rice rate was increased by 4.31 percentage points.The ratio of control tiller fertilizer to panicle fertilizer was 7:3,the food taste value of rice was increased by 7 points,the whole polishing rate was increased by 3.04 percentage points,and the yield reduction was controlled at about 5.9%.

关 键 词：氮肥减量 施氮比例 产量 整精米率 食味值 

分 类 号：S511.062[农业科学—作物学]