irrigation frequency meaning in English

灌溉次数

Effects of evaporation and irrigation frequency on soil water distribution
蒸发和灌水频率对土壤水分分布影响的研究
Effect of irrigation frequency and amount on seed yield and yield components of russian wildrye
灌水对新麦草种子产量及产量构成的影响
Throug the study on irrigation quota and irrigation times for licorice root planted in arid sandy land of middle ningxia , the result shows : by increasing irrigation frequency and irrigation fixed quantity properly , it can play a positive role in the conserving and increasing water - holding capacity in arid - belt sandy area
摘要通过对宁夏中部干旱带沙地种植甘草的不同灌水定额及次数的研究，结果表明，适当的增加灌水次数和灌水定额对于保持和增加干旱带沙壤土持水率具有积极的作用，有利于植物的生长发育。