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1998年夏季在草坪试验基地研究钾肥对草地早熟禾抗热性的影响。结果表明 ,施肥后临界半致死温度最高可以提高 6℃左右。以单施钾肥 1 .67g K2 O/m2的效果最好。磷钾混施时 ,随着钾与磷比例的增大 ,临界半致死温度呈增加趋势
Effect of Potassium Fertilizer on the Heat Tolerance of Poa pratensis in Grassland Experimental Base in Summer 1998. The results showed that the maximum lethal temperature of semi-lethality after fertilization could be increased about 6 ℃. To apply potassium fertilizer 1.67g K2 O / m2 the best. Phosphorus and Potassium mixed facilities, with the increase of potassium and phosphorus ratio, the critical lethal temperature showed an upward trend