关键词: 绿肥, 苦豆子, 甜瓜, 干物质量, 营养特性

Abstract: The paper studied the effect of green manure (Sophora alopecuroides) on the dry matter accumulation and nutrient absorption of trellis-cultivated melon through pot experiment of different green manure application levels. The results showed that the combined fertilization of chemical fertilizer with Sophora alopecuroides green manure could increase the dry matter content of trellis-cultivated melon,  nitrogen and potassium contents in leaf, nitrogen, phosforus and potassium accumulation of the whole plant, fruit longitudinal and travers, and single fruit weight of trellis-cultivated melon, compared with the treatment of chemical fertilizer(M0) fertilization only. When the application of green manure was 200~300 g/plant (M2 and M3), the increase of dry matter weight, accumulation of nitrogen and potassium of the total plant was the most significant, and increased than M0 treatment by 20.40%~42.41%, 35.65%~89.58% and 30.86%~62.62%, respectively. The contents of nitrogen and potassium in leaves of trellis-cultivated melon under M2~M4 treatment were significantly higher than that of M0 treatment, increasing 8.22%~75.45% and 2.72%~34.33%, respectively. The highest fruit longitudinal and travers, and single fruit weight were gained by M2 treatment, increasing 32.65%, 23.82% and 48.48%, respectively, compared with M0 treatment. The optimal Sophora alopecuroides green manure applicatuon rate was 200~300 g/plant for trellis-cultivated melon cultivation.

Key words: green manure, Sophora alopecuroides, melon, dry matter amount, nutrient characteristics