【摘要】 在砂壤地爱文杧果果园,以添加保水剂的高钾复合肥与钙镁磷混合物为基肥,对提高肥水利用率、促进果实品质形成具有明显的提升效果。试验结果表明,在相同肥水管控条件下,施用保水剂的土壤保肥保水能力明显优于施用塘泥、黄壤土和砂质土,果实成熟期较其他处理分别提早8 d、16 d、19 d;平均单果重和好果率显著高于其他处理;保水剂处理的果实平均667 m2产量达到737.00 kg,显著高于其他3个处理;在单株产量、果实可溶性固形物含量、果实可食率、果实可溶性糖含量、果实维生素C含量等方面,施用保水剂处理的显著高于其他3个处理,而果实可滴定酸含量下降显著;果实病情指数及发病率显著低于其他处理;667 m2纯收入较其他处理分别增加2 103元、1 120元、968元。综上所述,砂壤地施用保水剂能显著提高爱文杧果果实产量,增进品质,提高商品率,提早成熟,经济效益明显。更多还原

【Abstract】 Adding water-retaining agent, high potassium compound fertilizer and mixture of calcium, magnesium and phosphorus as basal fertilizer on Sandy land can improve the utilization ratio of fertilizer and water, and promote the formation of fruit quality. The results showed that under the same control of fertilizer and water, the ability of keeping fertilizer and water with application of waterretaining agent was obviously superior to that of pond mud, yellow loam soil and sandy soil of cultivation of ‘ Iriwin’ mango, the mature period of fruit was 8,16 and 19 days earlier than that of other treatments, the average weight of single fruit and the rate of good fruit was significantly higher than that of other treatments, and the average yield per 667 m2 of fruit treated with water-retaining agent reached 737.00 kg, significantly higher than the other three treatments. Yield per plant, soluble solids content, edible rate, soluble sugar content and vitamin C content of fruit with application of water-retaining agent was significantly higher than that of the other three treatments and the titratable acid content of fruit was significantly lower than that of the other treatments. The net income per 667 m2 increased by 2 103 yuan, 1 120 yuan and 968 yuan, respectively compared with other treatments. To sum up, the application of waterretaining agent on sandy soil can significantly improve the yield, quality, commodity rate, ripeness and economic benefit of mango.更多还原