机穴播模式对水稻群体生态特征及产量的影响  

Effects of Mechanical Hill-drop Seeding Cultivation on Rice Population Ecological Characteristics and Yield

作　　者：张珍[1] 顾春军[1] 王治雄[1] 李逸龙 王冬翼 王建冬 聂元元 ZHANG Zhen;GU Chun-jun;WANG Zhi-xiong;LI Yi-long;WANG Dong-yi;WANG Jian-dong;NIE Yuan-yuan(Agro-technology Extension Center of Pudong New District,Shanghai 201201,China;Agricultural and Rural Service Center of Laogang Township,Pudong New District,Shanghai 201302,China;Jiangxi Super-rice Research and Development Center,Nanchang 330200,China)

机构地区：[1]上海市浦东新区农业技术推广中心,上海201201 [2]上海市浦东新区老港农业农村服务中心,上海201302 [3]江西省超级水稻研究发展中心,江西南昌330200

出　　处：《江西农业学报》2023年第8期8-13,共6页Acta Agriculturae Jiangxi

基　　金：江西省农业协同创新重点项目(NXCYTY-01);江西省重点研发计划项目(20203BBF63033、20212BBF63001);江西省“揭榜挂帅”重大项目(20213AAF01001);上海市农委重大项目[沪农科推字(2021)第1-4号];水稻生物学国家重点实验室开放课题(20200101)。

摘　　要：以上海地区早熟优质水稻品种松早香1号为研究材料,研究了机穴播条件下不同种植时间、种植密度、施用总纯氮量及基蘖肥∶穗肥配比对茎蘖数动态变化、产量及产量结构的影响。结果表明:松早香1号经机穴播栽培的适宜播期为5月初,播种行株距为20 cm×10 cm,施用总氮量为300 kg/hm^(2),基蘖肥、穗肥配比以9∶1~10∶0为宜。在此条件下,松早香1号的有效穗多,易获得较高产量。The effects of different planting time,planting density,total nitrogen and the ratio of panicle fertilizer on the dynamic change of tiller number,yield and yield structure of early maturing and high-quality rice variety Songzaoxiang 1 in Shanghai were studied under mechanical hill-drop seeding cultivation.The results showed that the optimum mechanical hill-drop seeding period of Songzaoxiang 1 was early May,the optimum sowing density was 20 cm×10 cm,the optimum total nitrogen application rate was 300 kg/hm2,and the optimum ratio of base tillering fertilizer to panicle fertilizer was 9∶1~10∶0.Under this condition,Songzaoxiang 1 had more effective panicles and could easily obtain higher yield.

关 键 词：水稻 机穴播 播期 密度 肥料运筹 

分 类 号：S511[农业科学—作物学]