宁波市辖区粮食生产功能区地力评价与改良对策

Evaluation of land fertility and suggestions for grain functional zone in municipal districts of Ningbo

文章就宁波市辖区粮食生产功能区地力现状进行分析评价。结果表明,功能区地力水平总体良好,一、二等田分别占总调查面积的86%和14%;但也存在着土壤有效磷含量不均衡、部分田块土壤偏酸或水溶性盐总量较高或质地偏粘等现象。据此,提出针对性的培肥改良建议,为保障当地粮食生产安全提供参考。

This paper evaluated land fertility in grain functional zone in municipal districts of Ningbo. The results showed that the land fertility in grain functional zone was good. The first and second grade farmland accounted for 86% and 14% of the total investigation area, respectively. But there also existed that the content of soil available phosphorus was not balanced and the soil was acid, or the soil total water-soluble salt was high, or the soil texture was partial sticky in parts of the field. According to the status of its soil fertility, some suggestions on fertilization and amelioration were put forward with pertinency, in order to provide reference for guaranteeing the grain production safety effectively.