Water Use Efficiency as a Method for Predicting Water Use by Weeds

ROBERT F. NORRIS

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Water Use Efficiency as a Method for Predicting Water Use by Weeds

机译：水分利用效率作为杂草预测用水量的一种方法

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Water use by weeds is one type of loss that contributes to the cost of weeds to agriculture. Water use efficiency provides a mechanism by which water use by weeds can be estimated. Uncontrolled weed growth could result in estimated irrigation costs exceeding $50.00/ha. Weeds like barnyardgrass at threshold densities in irrigated crops like sugarbeet or tomato are estimated to increase production costs by about $20.00/ha depending on water cost.

机译：杂草用水是造成杂草农业成本增加的一种损失。水分利用效率提供了一种机制，可以据此估算杂草的水分利用。杂草生长不受控制可能导致估计的灌溉成本超过$ 50.00 / ha。在灌溉作物（如甜菜或西红柿）中，像threshold草这样的杂草处于临界密度时，根据水成本的不同，估计每公顷杂草会使生产成本增加约20美元/公顷。

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来源
《Weed technology》 |1996年第1期|p.153-155|共3页
作者
ROBERT F. NORRIS;
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作者单位

Vegetable Crops Dep., Weed Sci. Program, Univ. California, Davis, CA 95616;

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原文格式 PDF
正文语种 eng
中图分类植物保护;
关键词
costs; losses; transpiration coefficient;

机译：成本;损失;蒸腾系数;

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2. ECONOMICS, CONSUMPTIVE USE OF WATER AND WATER USE EFFICIENCY OF CORIANDER CROP AS AFFECTED BY VARIOUS IRRIGATION LEVELS AND WEED CONTROL MEASURES [J] . VIJAY PAL SINGH, A. C. YADAV, K. K. THAKRAL Haryana Agricultural University,Journal of Research . 2001,第3a4期

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Water Use Efficiency as a Method for Predicting Water Use by Weeds

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