论文部分内容阅读
无锡市近郊的种植业以蔬菜生产为主。多年来,本区在蔬菜生产中,对良种的利用、栽培技术的改进和病虫害的防治注意较多,对蔬菜作物的需肥特性和合理施肥的研究较少;对土壤的利用较多,对土壤的培肥和管理较少。这些不良倾向,限制了菜园土壤肥力的提高,影响了蔬菜单位面积产量的增加。根据土壤普查资料分析,目前,无锡市近郊菜园土壤主要存在以下几个问题。 一、优质有机肥施用少,土壤有机质和全氮有下降趋势
Crop production in the suburbs of Wuxi is dominated by vegetable production. Over the years, in the vegetable production in the region, attention has been paid to the utilization of improved varieties, improvement of cultivation techniques, and prevention and control of pests and diseases. Less research has been conducted on the characteristics of fertilization and fertilization of vegetables and vegetables; Soil fertility and management less. These unhealthy tendencies limit the improvement of soil fertility in the vegetable garden and affect the increase of vegetable yield per unit area. According to soil census data analysis, at present, Wuxi suburbs garden soil mainly the following problems. First, the application of high-quality organic fertilizer less soil organic matter and total nitrogen decreased