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以西瓜为试材,通过不同氮钾用量试验,研究了不同肥料用量对西瓜生长发育、产量和品质的影响。结果表明:在一定范围内,随着氮用量的上升,西瓜产量增加。当每667m~2氮用量达到10kg以后,西瓜产量开始呈下降趋势;钾对提升西瓜品质有较大作用,高钾处理(每667m~2施用16kg K_2O)比低钾处理(每667m~2施用14kg K_2O)糖酸比提高4.57%~6.27%。该试验条件下每667m2氮、钾推荐用量分别为6.73kg和16kg。
With watermelon as test material, through different nitrogen and potassium dosage test, the effects of different amount of fertilizer on watermelon growth, yield and quality were studied. The results showed that within a certain range, the yield of watermelon increased with the increase of nitrogen content. The yield of watermelon began to decline when the dosage of nitrogen per 667m ~ 2 reached 10kg. Potassium had a great effect on improving the quality of watermelon. High potassium treatment (16kg K2O per 667m ~ 2) was more effective than low potassium treatment (every 667m ~ 2 14kg K_2O) increased sugar and acid ratio 4.57% ~ 6.27%. Under the test conditions, the recommended dosage of nitrogen and potassium per 667m2 were 6.73kg and 16kg respectively.