喷灌施肥的试验结果表明，化肥施入量与灌水量的分布都可以用正态分布来表示，且它们的分布比较接近。
Fertilizer irrigation experiment showed that distributions of both fertilizer and water applied through sprinkler system can be represented by an approximate similar normal distribution function.
研究施肥量和灌水量对不同滴灌模式棉花产量、水分利用效率（WUE）的水氮耦合效应影响。
The coupling effect of water and nitrogen on cotton yield and water use efficiency(WUE) was studied under different drip irrigation patterns.
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