塞外红苹果果园生草生态控害提质试验研究

Experimental Study on Ecological Damage Control and Quality Improvement of Grass in Saiwai Red Apple Orchard

2017年在通辽市林业科学研究院舍伯吐试验研究中心塞外红苹果园,开展生草生态控害提质试验研究,生草区面积14.67 hm2。研究表明,在塞外红苹果果园种植紫花苜蓿区域的果树上蚜虫、叶螨和潜叶蛾的平均虫口密度比清耕园分别减少52.1%、62%和60.5%;单枝上天敌量是清耕园的3.3倍,生草果园天敌数量大,控害效果显著,并改善了生态环境,减少了农药对环境和果品的污染;种植紫花苜蓿区域的优质果率和平均公顷产量比清耕区分别提高14.7%和16.9%。

An experimental study on ecological damage control and quality improvement of raw grass was carried out in Saiwai red apple Orchard in Tongliao Forestry Research Institute, with an area of 14.67 hm2. The results showed that the average density of aphid, mite and leaf hopper was respectively 52.1 %, 62 %and 60.5 % lower than that of the clear tillage orchard in the area where alfalfa was planted. The number of natural enemies on a single branch was 3.3 times that of the clear tillage orchard. The number of natural enemies in the grass orchard was large, and the control effect was significant, and the ecological environment was improved, and the pollution of the environment and fruits by pesticides was reduced. The quality fruit rate and average yield per hectare in the alfalfa planting area were respectively 14.7 % and 16.9 % higher than those in the clean tillage area.