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石羊河流域喷灌不同灌水量对苜蓿生长、产量及水分利用效率的影响
Authors
寇丹
苏德荣
陶雪
Publication date
1 January 2015
Publisher
Doi
Cite
Abstract
通过大田喷灌试验,研究了苜蓿生长适宜的灌水量。结果表明,喷灌条件下不同灌水处理苜蓿的生长、产量、水分利用效率与耗水量有极高的相关性(R2>0.97);随着灌水量增加,苜蓿生长越好,产量越高,当灌水量大于140mm时,苜蓿产量不再随灌水量增加而增加;苜蓿的水分利用效率随着耗水量的增加先增加后降低,灌水利用效率随耗水量的增加降低,差异均显著(P<0.05)。该研究揭示喷灌条件下140mm的灌水量不仅可以使石羊河流域苜蓿增产还可以节约水资源
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of Botany,Chinese Academy Of Sciences
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Last time updated on 27/10/2022