| 松嫩平原土壤自然水分条件分析及对玉米产量影响 |
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| 引用本文： | 纪仰慧,王晨轶,姜丽霞,杨晓强,朱海霞,李帅.松嫩平原土壤自然水分条件分析及对玉米产量影响[J].玉米科学,2012,20(5):94-96,101. |
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| 作者姓名： | 纪仰慧 王晨轶 姜丽霞 杨晓强 朱海霞 李帅 |
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| 作者单位： | 黑龙江省气象科学研究所,哈尔滨,150030 |
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| 基金项目： | 公益性行业(气象)科研专项“东北地区土壤墒情监测预报及其对主要农作物的影响分析”(GYHY201106026)、公益性行业(气象)科研专项“东北地区春玉米指标体系研究”(GYHY201206018) |
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| 摘 要： | 以松嫩平原为研究区域,自然条件下固定13个农业气象站,以16年平均土壤水分及对应年平均玉米产量为研究对象,分析玉米生长季内0～50 cm土层土壤平均重量含水率及各层平均重量含水率在其主要生育期的分布状况,采用积分回归法分析土壤水分与玉米单产之间的效应。结果表明,在玉米主要生育期间,0～50 cm土层平均土壤重量含水率在抽雄期为最小,播种期及出苗期较大;各层土壤在玉米各生育期重量含水率大小分布基本与0～50 cm土层平均值一致,31～50 cm各层土壤重量含水率明显高于0～10、11～20 cm土层值。松嫩平原玉米在整个生长季土壤重量含水率与其产量在出苗期、乳熟期及成熟期为负效应,而在播种期、三叶期、七叶期、拔节期及抽雄期为正效应。
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| 关 键 词： | 玉米 重量含水率 产量 松嫩平原 |
Effect of the Natural Soil Moisture Conditions in Songnen Plain on Maize Yield and the Correlative Analysis |
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| Institution: | JI Yang-hui,WANG Chen-yi,JIANG Li-xia,et al.(Institute of Meteorological Sciences of Heilongjiang Province,Harbin 150030,China) |
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| Abstract: | Songnen plain was selected as the researched area,the soil-moisture in fixed maize area and corresponding maize yield was selected as researched object.This paper analyzed the distributing status of 0-50 cm soil layers soil average weight water content during maize growing season and every layers weight water content during mainly bearing period,at the same time,analyzed the affirmative and negative effect of soil-moisture and maize per unit yield by using the integral regression method.The results were as follows,during maize mainly growing period,the 0-50 cm soil layers soil average weight water content in heading stage was least,which in planting and seedlings stage was bigger;the distributing status of every layers weight water content during mainly bearing period was consistent with 0-50 cm soil layers average value,but soil layers value of 31-50 cm every layers weight water content was bigger than which in 0-10 cm and 11-20 cm.The weight water content and output of Songnen plain maize during growing season period were negative effect in seedlings,ripen stage and mature and which were positive effect in planting,three leaves,seven leaves,jointing and heading stage;during growth stage of maize,weight water content was least in heading stage and which was most in plantings and seedlings stage. |
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| Keywords: | Maize Weight water content Yield Songnen plain |
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