激光平地改善土壤水盐分布并提高春小麦产量

ISWC OpenIR > 水保所知识产出(1956---)

	激光平地改善土壤水盐分布并提高春小麦产量
其他题名	Laser land leveling improve distribution of soil moisture and soil
	白岗栓; 杜社妮; 于健; 张沛琪
	2013
发表期刊	农业工程学报
卷号	29 期号:05 页码:125-10
摘要	为了促进激光平地技术的应用与推广,在河套灌区以普通畦田为对照,分期、分段测定了激光平地畦田0～80cm土层土壤水分、土壤盐分及春小麦生长状况。结果表明,从渠口到畦尾,激光平地畦田不同地段的土壤水分在春小麦生长的不同时期无显著差异,但从拔节期开始,上层土壤盐分逐渐升高;普通畦田从三叶期开始,上层土壤水分、盐分逐渐提高,且显著或极显著高于激光平地。普通畦田从三叶期开始,激光平地从拔节期开始,从渠口到畦尾,春小麦的生长状况逐渐变差,千粒质量、产量均逐渐降低,但激光平地的春小麦千粒质量、产量高于普通畦田。激光平地改善了畦田的土壤水分、盐分分布,促进了畦田中后段的春小麦生长,提高了畦田中后段的水分利用率及产出率。
其他摘要	In order to promote the laser land leveling technology in Hetao Irrigation District, compared with ordinary border, soil moisture, soil salinity in 0-80 cm depth and spring wheat growth of border with laser land leveling were determined in different segments at different stages of spring wheat growth. The results showed that the soil moisture of border with laser land leveling had no significant difference in different segments at different stages of spring wheat growth, but the soil moisture in roots distribution soil layer (0-40 cm) of ordinary border gradually increased from water inlet to border trail from spring wheat trefoil stage to maturity stage, and reached significant or very significant difference between different segments, as well the soil moisture of roots distribution soil layer of ordinary border in middle and posterior segment were significantly or very significantly higher than border with laser land leveling. Laser land leveling caused irrigation water uniformly distributed in the border. Soil salt accumulation in surface soil in ordinary border began from spring wheat trefoil stage, and in laser land leveling border began from spring wheat jointing stage, as well soil salt accumulation in surface soil in laser land leveling border was 20d later than that in ordinary border. Soil salinity in roots distribution soil layer of ordinary border and laser land leveling border all gradually increased from water inlet to border trail, and the soil salinity of ordinary border in middle and posterior segment were significantly or very significantly higher than that of laser land leveling border. For ordinary border from spring wheat trefoil stage and laser land leveling border from spring wheat jointing stage, the spring wheat growth situation became worse from water inlet to border trail, and the thousand-grain weight, wheat yields in spring wheat maturity stage gradually decreased, but the thousand-grain weight, wheat yields of laser land leveling border in middle and posterior segment were significantly or very significantly higher than that of ordinary border. This research indicated that laser land leveling technology improved soil moisture and salinity distribution in border, promoted spring wheat growth, boosted water use efficiency and the water output rate in middle and posterior segment of border.
关键词	灌溉土壤水分盐分激光平地春小麦产量
语种	中文
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/5518
专题	水保所知识产出(1956---)
推荐引用方式 GB/T 7714	白岗栓,杜社妮,于健,等. 激光平地改善土壤水盐分布并提高春小麦产量[J]. 农业工程学报,2013,29(05):125-10.
APA	白岗栓,杜社妮,于健,&张沛琪.(2013).激光平地改善土壤水盐分布并提高春小麦产量.农业工程学报,29(05),125-10.
MLA	白岗栓,et al."激光平地改善土壤水盐分布并提高春小麦产量".农业工程学报 29.05(2013):125-10.

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