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当前位置: 首页 > 文章 > 不同覆盖条件对吉林省东部冷凉区中晚熟玉米产量的影响 东北农业科学 2019 (5) 20-25+42
Position: Home > Articles > Effects of Different Mulching Conditions on the Yield of Middle-Late Mature Maize in the Cool Area of Eastern Jilin Province Journal of Northeast Agricultural Sciences 2019 (5) 20-25+42

不同覆盖条件对吉林省东部冷凉区中晚熟玉米产量的影响

作  者：
胡宇;具红光;赵鑫;曹铁华;梁烜赫
单  位：
吉林省农业科学院;延边大学农学院
关键词：
地温;覆盖条件;产量;生长系数;冷凉区
摘  要：
运用随机区组设计,在吉林省东部冷凉区利用可降解地膜覆盖、秸秆覆盖和裸地(CK)三种处理方式,对不同覆盖条件下玉米的产量与生长系数(-LA--I、CGR、NAR和EGR)和地温之间进行相关性分析。结果表明:在玉米的整个生育期,裸地日平均地温比覆膜玉米地温低6.3%,比秸秆玉米地温高14.2%;裸地的玉米产量比覆膜产量降低37.8%,比秸秆处理产量高48.7%。从保水增温效应来看,最有效的是可降解地膜覆盖;玉米的平均叶面积指数(LAI)、群体生长率(CGR)、果穗生长速率(EGR)及地温与玉米产量之间存在显著的正相关性,其中果穗生长速率(EGR)和地温对玉米产量的影响较大,而净同化率(NAR)与玉米产量之间相关性不显著。研究认为:对玉米进行覆盖种植时,因地膜覆盖可显著提高土壤水分利用效率和土壤温度,在吉林省东部冷凉区进行晚熟品种引进种植时,建议优先采用地膜覆盖的方式。
译  名：
Effects of Different Mulching Conditions on the Yield of Middle-Late Mature Maize in the Cool Area of Eastern Jilin Province
作  者：
HU Yu;JU Hongguang;ZHAO Xin;CAO Tiehua;LIANG Xuanhe;College of Agronomy, Yanbian University;Jilin Academy of Agricultural Sciences;
关键词：
Ground temperature;;Mulching method;;Yield;;Growth coefficient;;The cold area
摘  要：
Using random block design, the correlation between maize yield and growth coefficient(LAI, CGR, NAR and EGR) and ground temperature under different mulching method was analyzed in the cold area of Eastern Jilin Province by using three treatments: degradable plastic film mulching, straw mulching and bare land(CK). The results showed that during the whole growth period of maize, the average daily ground temperature of bare land was6.3% lower than that of film mulched maize and 14.2% higher than that of straw mulched maize. The yield of bare land was 37.8% lower than that of film mulched maize and 48.7% higher than that of straw mulched maize. According to the effect of keeping water and increasing temperature, degradable plastic film mulching was the most effective. Average leaf area index(LAI), crown growth rate(CGR), ear growth rate(EGR), and ground temperature were significantly positive correlated with maize yield. Among them, ear growth rate(EGR) and ground temperature had greater impact on maize yield, while net assimilation rate(NAR) had no significant correlation with maize yield. It was concluded that plastic film mulching could significantly improve soil water use efficiency and soil temperature when planting maize under mulching. It was suggested that plastic film mulching should be preferred when introducing late-maturing varieties into the cold area of Eastern Jilin Province.

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