水稻覆膜直播干物质积累和产量构成因素的变化  

Changes of Yield Components and Dry Matter Accumulation with Film Mulching and Direct Seeding of Rice

作　　者：李树杏[1] 王丽丽[1] 涂敏[1] 郭慧[1,2] 

机构地区：[1]贵州省农业科学院水稻研究所,贵州贵阳550006 [2]中南大学研究生院隆平分院,湖南长沙410125

出　　处：《山西农业科学》2017年第7期1100-1102,1133,共4页Journal of Shanxi Agricultural Sciences

基　　金：贵州省科技成果转化项目(黔科合成果[2016]4012号);贵州省水稻产业技术体系建设项目(GZCYTX2016-0601);国家重点研发计划项目(2016YFD0101101);贵州省农业科学院自主创新科研项目(黔农科科院自主创新科研专项字[2014]19号);贵州省科技基金项目(黔科合LH字[2015]7074号)

摘　　要：为了探讨水稻在覆膜直播栽培条件下物质生产及其产量变化,以杂交籼稻早熟品种香早优2017、安优136和迟熟品种金优785、Ⅱ优838这2种类型4个品种为试验材料,对覆膜直播栽培和育秧手栽2种不同种植方式下干物质积累量和产量构成因素进行比较研究。结果显示,在覆膜直播栽培条件下,金优785、香早优2017、安优136和Ⅱ优838的产量比常规手栽分别高14.38%,13.69%,12.71%,11.22%;单茎和群体干物质的积累量都表现为覆膜直播高于常规手栽。说明水稻在覆膜直播栽培条件下其根系对土壤营养物质的吸收、转化利用效率更高,同比叶面积指数增加,光合效率增强,产量提高。To explore the material production and yield with film mulching and direct seeding of rice, this paper used Anyou 136 and Xiangzaoyou 2017 and Jinyou 785 and Ⅱ you 838 as experimental material, and artificial transplanting as CK, the dry matter accumulation and yield components of 2 different planting methods, direct seeding and hand planting, were compared. The results showed that all the yield of every variety with film mulching and direct seeding was higher than those of conventional hand plant, dry matter accumulation of single plant and population were higher with film mulching than conventional plant. The result explained that film mulching was better for root in absorbing nutrition and high transform use ration, leaf area index increased, and photosynthetic efficiency enhanced and yield improved.

关 键 词：水稻 覆膜 直播 产量 干物质 

分 类 号：S511[农业科学—作物学]