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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (35): 122-127.doi: 10.11924/j.issn.1000-6850.casb15070034

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Control Effect of Solarization Mode on Soil Root-knot Nematode 2nd Instar Larvae

  

  • Received:2015-07-06 Revised:2015-11-05 Accepted:2015-08-25 Online:2015-12-18 Published:2015-12-18

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.

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