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需肥量 [xū féi liàng]
[农][植] fertilizer requirement
- 原需肥量计算公式纯粹是利用率不妥计算的逆运算。
The old calculation formula for fertilizer requirement did not fit to fertilizer requirement. - 需肥量参数具有较大幅度的变化，应按照土壤肥力以及产量目标来合理调整并确定这个重要参数。
There was a range for parameters of fertilizer requirement, so it should be adjusted according to soil fertility and yield. - 日光温室栽培作物具有产量高、需肥量大等特点，在实际生产中，过量施肥现象较为严重，导致土壤养分过量累积；
Compared with the crops cultivated in open land, the crops cultivated in greenhouse have high yield, and excessive application of fertilizers is very common in their production.
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