关键词: 夏季干旱, 夏季干旱, 气候资源, 作物生产潜力, 优劣分析

Abstract: In order to determine the effect of solarization mode on soil temperature and root-knot nematode 2nd instar larvae, the treatments of 0.9 kg/m2 barley husk film, 1.7 kg/m2 chicken manure film and 4 kg/m2 cabbage 2 kg/m2 wheat bran film were evaluated by summer solarization. The results showed that the green house temperature reached the maximum value of 47.5℃ at 15:00, and the minimum value of 28.8℃ at 9:00. The temperature of 15, 20 and 30 cm soil layers reached the maximum at 18:00, while that of 10 cm was at 15:00. The increased value of average temperature was the highest under the treatment of 1.7 kg/m2 chicken manure film, which reached 3.6 to 5.3℃, and the average was 4.5℃. The control effects of 1.7 kg/m2 chicken manure film and 4 kg/m2 cabbage 2 kg/m2 wheat bran film for root-knot nematode 2nd instar larvae in 0 to 30 cm soil layer were more than 90% and 87%, respectively, while no significant effect was found over 30 cm soil layer. The control effect of 1.7 kg/m2 chicken manure film and 4 kg/m2 cabbage 2 kg/m2 wheat bran film for tomato root-knot nematode disease were 100% and 92.3%. It was suggested that 4 kg/m2 cabbage 2 kg/m2 wheat bran film and 1.7 kg/m2 chicken manure film should be used in summer solarization to control vegetable root-knot nematodes, which had the advantage of user-friendly control and high control efficiency, this method was suitable to the green house vegetable production in the north in summer.