摘要
以杂交水稻Y两优143号为材料,采用30 cm×60 cm机插硬塑秧盘,分别以50、60、75、100 g/盘播种密度进行育秧密度对比试验,设4个处理,3次重复,随机排列。结果表明:秧苗质量与播种密度相关,适当稀播有利于秧苗质量的提高;机插漏蔸率与播种密度相关,在一定播种密度范围内,密度增加有利于降低漏插发生率;在经济效益上比较,50 g/盘、60 g/盘和75 g/盘等3种处理的经济效益相差不大,而75 g/盘处理要比100 g/盘处理的效益高802.65元/hm2。
Taking the hybrid rice Y double priority143 as tested material, using 30 cm× 60 cm machine inserted hard plastic seedling, respectively by 50, 60, 75, 100 g/disk sowing density contrast test, with 4 treatments, 3 replicates, random arrangement. The results show that Seedling quality associated with planting density, proper thin sowing is conducive to improve seedling quality; machine plug leakage stump rate associated with the sowing density, sowing density in a certain range, density increase is beneficial to reduce leakage inserted incidence; varieties treatments＇ economic benefit isn＇t obvious, but the 75g/disk processing than 100g/disk processing poor efficiency higher than 802.65 yuan / hm^2.
出处
《热带农业工程》
2014年第6期25-27,共3页
Tropical Agricultural Engineering
基金
国家农业部粮食高产创建项目专项(2014年度农机农艺融合项目)
关键词
水稻
农机农艺
播种密度
产量
rice
agricultural machinery and agronomy
seedling densities
yield
