连城县耕地地力存在的问题与改良对策

Existing problems in soil fertility of cultivated land in Liancheng County and its improvement strategies

连城县耕地地力调查与评价结果表明:全县耕地缺水严重,干旱限制是耕地最主要的制约因素;耕地土壤矿质养分失衡,硼、钾和镁缺乏严重;耕地土壤整体偏酸性,且CEC低,保肥供肥性能总体较差;耕地地力水平总体不高,以中产田为主。建议以加强农田水利基础设施建设为主,因地制宜提高农田抗旱排渍能力,改良中低产田;实施测土配方施肥,科学增施钾镁肥和硼肥;合理轮作,用养结合。

The results of investigation and evaluation on soil fertility of cultivated land in Liancheng showed that ： the water deficiency became seriously and drought was the main limiting factor, the soil mineral nutrients was imbalance and B, K and Mg deficiencies were seriously, the soil tend to acid in general and CEC was low, and the fertility-reserving and-supplying capacity were weak, the land fertility was low with a large part of low-and middle-yielding field. Based on these status, some suggestions, i.e. laying the stress on strengthening the water conservancy infrastructure in farm land, increasing the ability of drought resistance and waterlogging drainage, improving the low-and middle-yielding field, carrying on the soil testing and fertilizer recommendation, increasing application of K, Mg and B fertilizers, rational rotation, combining land usage with land maintenance, etc.