fertilizer efficiency meaning in English

肥效

Preliminary fertilizer efficiency test report on applying vegetable special minor element fertilizer
蔬菜专用微肥肥效试验初报
Research to the fertilizer efficiency of modified ammonium bicarbonate and its eluviation characteristics preliminary report
改性碳酸氢铵的肥效及淋溶特性研究初探
So considerable errors might occur if water dissolution rate method was used to estimate the fertilizer efficiency although the method can make quick comparisons of nutrient release rates among different crfs / srfs
水中溶出率虽可以快速比较不同控/缓释肥的溶出速率，但用以估测肥料在田间的实际肥效，则产生较大的误差。