稻田旋耕深度对盐丰47的生长发育及产量性状的影响  

Effect of Rotary Tillage Depth on the Growth and Yield Characters of Yanfeng 47

作　　者：姜宝龙 代贵金 宫殿凯 赵福财 于广星 徐博 刘宪平 陈盈 Jiang Baolong;Dai Guijin;Gong Diankai;Zhao Fucai;Yu Guangxing;Xu Bo;Liu Xianping;Chen Ying(Agricultural Service Center of Dongfeng Town,Dawa District,Panjin,Liaoning124205;Rice Research Institute of Liaoning Province,Shenyang,Liaonin g 110101)

机构地区：[1]大洼区东凤镇农业服务中心,辽宁盘锦124205 [2]辽宁省水稻研究所,辽宁沈阳110101

出　　处：《粮食科技与经济》2020年第6期107-109,共3页Food Science And Technology And Economy

基　　金：国家重点研发计划(2018YFD0300304)、(2016YFD0300504);国家水稻产业体系项目(CARS-01-50)。

摘　　要：本试验采用大区对比法,设3个旋耕深度处理,分别是9cm、12cm、15cm。分别测量分蘖动态、SPAD值、地上部干物重、产量及其构成因素。结果表明:随着旋耕深度的增加,叶片SPAD值、地上部干重、穗数和产量呈现增加的趋势,而耕深9cm和12cm间差异不显著,只有当深度达到15cm时,各性状才呈现显著增加;旋耕深度对水稻穗粒数、结实率和千粒重的影响较小。鉴于此,辽宁地区水稻旋耕深度应以15cm左右为宜,不能过浅。Explore the effects of different rotary tillage depths on rice growth and yield,and determine the best tillage depth,so as to achieve the purpose of increasing yield and efficiency of rice.The experiment adopts the large-area comparison method,and three depths of rotary tillage treatment are set,which are 9cm,12cm and 15cm respectively.Tillering dynamics,SPAD value,aboveground dry matter weight,yield and its constituent factors were measured separately.The results showed that with the increase of rotary tillage depth,the leaf SPAD value,aboveground dry weight,spike number and yield showed an increasing trend,but the difference between tillage depth of 9 cm and 12 cm was not significant,only when the depth reached 15 cm,Each trait showed a significant increase;the depth of rotary tillage had little effect on the number of rice grains,seed setting rate and thousand-grain weight.The depth of rice paddy rotation in Liaoning should be about 15 cm,not too shallow.

关 键 词：水稻 旋耕 产量 

分 类 号：S513[农业科学—作物学]