播种量对滨海稻区水稻旱直播产量及经济效益的影响  

Effects of Seeding Amount on Rice Yield and Economic Benefits in Coastal Rice Region

作　　者：王宇[1] 王志兴[1] 钟鸣[2] 吕小红[1] 任海[1] 李旭[1] 隋鑫[1] 马畅[1] 杜萌 WANG Yu;WANG Zhixing;ZHONG Ming;LYU Xiaohong;REN Hai;LI Xu;SUI Xin;MA Chang;DU Meng(Liaoning Institute of Saline and Alkali Land Utilization,Panjin 124010;College of Bioscience and Biotechnology,Shenyang Agricultural University,Shenyang 110161,China)

机构地区：[1]辽宁省盐碱地利用研究所,辽宁盘锦124010 [2]沈阳农业大学生物技术学院,沈阳110161

出　　处：《东北农业科学》2024年第1期7-11,共5页Journal of Northeast Agricultural Sciences

基　　金：辽宁省民生科技计划项目(2021JH2/10200028)。

摘　　要：为了完善滨海稻区直播稻高产栽培技术体系,2021、2022连续两年以不同水稻品种为材料,采用随机区组设计,不同年份不同品种设置不同播种量处理,测定播种量对直播稻生长发育及产量的影响,探索滨海稻区水稻旱直播最佳播种量。结果表明,旱直播两年的实际产量均以播量120 kg/hm^(2)处理最高,分别为8.37、8.41 t/hm^(2),虽比当年的机插秧减产15.63%、15.73%,但效益分别增加749.46、698.00元/hm^(2)。In order to improve the high-yield cultivation technology system of direct seeding rice in coastal area,different varieties were used as materials under several seeding rates by random block test in 2021 and 2022 to determine the impact of sowing rates on the growth and yield of dry direct seeding rice,and to explore the best sowing rate of direct seeding rice in coastal area.The results showed that both of the actual yields under 120 kg/hawere the highest in two years,reached 8.37 t/haand 8.41 t/ha respectively.Although the highest yields were 15.63%and 15.73%lower than that of machine transplanting in the same year,the benefits increased by 749.46 yuan/ha and 698.00 yuan/ha,respectively.

关 键 词：播种量 滨海稻区 水稻旱直播 产量 经济效益 

分 类 号：S511.04[农业科学—作物学]