苏南地区设施蔬菜持续高效技术研究初报

A Preliminary Report on Sustainable and High Efficient Technology for Vegetable Protected Cultivation in South of Jiangsu Province

苏南地区设施蔬菜经常遭受持续阴雨寡照天气的危害，模拟试验揭示了持续寡照条件下大量元素吸收相对过剩，微量元素吸收相对不足，营养失调导致生育障碍的生理因素。采取高畦栽培膜下滴灌，扩大行距，强制排湿等综合措施，改善栽培环境，抑制病害发生和蔓延，避免农药污染。研究开发了改善土壤环境和提高蔬菜品质的有机营养技术，使产品营养品质和风味品质得到了提高。

The lasting rainy weather and shortage of sunlight often hurt vegetables in protected cultivation. The simulated experiment indicated that one of facters of the injury was the imbalance of over--take of macro--element and short--take of odium element. Baded on the present research, some agricultural practice were suggested to improve the resistance to these injuries, such as high furrow cultivation with drop--irrigation under the plastic film, enlarging the space between the plants, reducing the humidity through ventilation. All last, all organic cultural technology are established to improve the soil condition and the quality of products.