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【多选题】
合理灌溉的基本要求是利用最少量的水取得最好的效果。要想做到合理灌溉,就要知道植物什么时候需要水、需要多少以下说法正确的是( )
A.
植物种类不同，需水量便不同。
B.
植物处于不同的生长发育时期需水量不同。
C.
在不同季节植物对水分的需求没有明显差异。
D.
在水分临界期，可以适量减少灌溉。
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