赣南中低产田区双季稻机插的适宜播种量研究  

Research of Appropriate Seeding Quantities of Double Season Machine-transplanted Rice in Middle and Low-yielding District of Southern Jaingxi Province

作　　者：钟珺[1] 胡启锋[2] 李云[1] 黎为兵[1] 连垚 张朝阳 虞新华 

机构地区：[1]赣州市农业科学研究所,江西赣州341000 [2]江西省农业科学院,江西南昌330200 [3]兴国县农业技术推广中心,江西兴国342400

出　　处：《安徽农业科学》2015年第29期87-89,共3页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划项目(2011BAD16B04;2012BAD04B11)

摘　　要：[目的]研究赣南中低产田区双季稻机插的适宜播种量。[方法]早晚稻各设置5个不同播种量处理,并以常规抛秧处理为对照,探讨赣南中低产区双季稻机插的适宜播种量。[结果]该区机插早稻播种量70 g/盘(360盘/hm2)、晚稻播种量60 g/盘(360盘/hm2)时产量最高。机插早稻产量与有效穗数和穗粒数显著正相关,机插晚稻与有效穗数显著正相关,保证足够的有效穗数是提高该区机插稻产量的重要措施。[结论]该区双季稻机插存在适宜播种量,且产量较高。[ Objective] To research the appropriate seeding quantities of double-season machine-transplanted rice in middle and low-yielding district of Southern Jaingxi Province. [ Method ] Set five different seeding quantities treatments, and compared with conventional seedling treatment, the appropriate seeding quantities of double season machine-transplanted rice in middle and low-yielding district of southern Jiangxi Province was discussed. [ Result] The yields were highest when the seeding quantity was 70 g/plate （360 plate/hm2） of early season ma- chine-transplanted rice, and 60 g/plate （360 plate/hm2 ） of later season machine-transplanted rice. The correlation was significantly positive between yield and effective particles and grain number per particle of early season machine-transplanted rice. The correlation was significantly positive between yield and effective particles of later season machine-transplanted rice. Ensuring enough effective particles number is one of the important measures to improve the yield of double-season machine-transplanted rice in this district. [ Conclusion] There have appropriate see- din,, auantities of double-season machine-transplanted rice and have high yields.

关 键 词：播种量 双季稻 机插稻 中低产田区 

分 类 号：S511[农业科学—作物学]