闽北中低产田土壤主要障碍因素分析

南平市是福建省的粮食主产区，耕地面积为22.05万hm²，其中水田21.33万hm²。以单位面积产量水平划分，有71.74%为中低产田。这些中低产田是制约粮食生产进一步发展的关键所在，也是提高单位面积产量和增加粮食总产的潜力所在。笔者通过分析不同类型中低产田的主要土壤障碍因素和肥力特性，总结经过实践可行的工程措施及农业生物技术措施，旨在为2015—2018年抛荒山垄田复垦改造及今后中低产田治理提供科学依据。

Analysis of Main Obstacle Factors of Middle-low Yield Soil in Northern Fujian

Nanping city was major grain producing areas in Fujian province. There were 220500hm2 arable land in the area. Among them, the paddy soil occupied by 213300hm2. But, according to yield level in per unit area, 71.74% arable land belonged to the middle-low yielding soil. These arable land were the key to limiting the further development of grain production, and to increase potential of grain production. This article analyzed the main obstacle factors of the different types of middle-low yielding soil, and summarized the feasible project measure and agriculture and biotechnology measures that had been through practice checkout. The goal was conducted to provide a scientific basis for the land reclamation that had been out of cultivation and middle-low yielding soil improvement in 2015 to 2018.