Crop oater requirement forcasting is the effective way to plan and manage the water resources.
摘要作物需量的预测是进行资源规划和管理的有效手段。
The paper analyzes the soil water dynamics and water requirement law of alfalfa,feed maize and ensile maize under 3 kinds of water-saving irrigation conditions through experimental study on the crops.
件下的紫花苜蓿、饲料玉米和青贮玉米需量进行了试验研究,分析了不同平下3种饲草料作物的土壤动态和需规律。
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That's twice the amount of water needed for pork production, and three times the amount needed for chicken.
这是生产同等量猪肉所需水量的两倍，鸡肉所需水量的三倍。
He now grows crops that require less water.
他现在种植需水量更少的。
The grand total is 9 billion tonnes of water. China does not have that much available.
总需水量达90亿吨。供不应求。
The team calculated the production costs by assessing land area, water needs and fertilizer.
这一队通过评估土地面积、需水量及肥料计算生产成本。
The government in Karachi says the city supplies only half of the water it needs daily.
卡府说，该市每天只能供应所需水量的一半。
One possible solution would be to cut down less important species of trees that compete with sequoias for water.
一种可行的办法就是减少非重要树种的数量，增加红杉的需水量。
At a current right of consumption, the global demand for freshwater doubles every 20 years.
按目前用水量计算，每隔 20 年，全世界的需水量就会翻倍。
A rain gauge can tell you how long to water to put the desired amount of water into the garden.
雨量计可以帮助明确花园所需水量的浇水时长。
Kidney beans only need 1,500 liters (396 gallons) , which is a tenth of the amount of water required for beef.
芸豆只需要 1500 升水，是牛肉生产所需水量的十分之一。
In an early trials run by a non-profit in Dubai, grain, zucchini and watermelon needed 50 percent less water to grow.
在迪拜一家非营利组织的早期试验中，谷、西葫芦和西瓜的生长所需水量减少了50%。
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详细解释
量的预测是进行
件下的紫花苜蓿、饲料玉米和青贮玉米
。
队通过评估土地面积、
府说，该市每天只能供应所
