Sharma S B, Nene Y L
J Nematol. 1990 Oct;22(4S):658-64.
Solarization by covering the soil with transparent polyethylene sheets during the summer months (April, May, June) in 1984 and 1985 significantly (P = 0.01) reduced the population densities of nematodes (Heterodera cajani, Rotylenchulus reniformis, Helicotylenchus retusus, Pratylenchus sp., and Tylenchorhynchus sp.) parasitic to chickpea and pigeonpea. Population density reductions of 93% of Heterodera cajani eggs and juveniles, 99% ofHelicotylenchus retusus, 98% of Pratylenchus sp., and 100% of R. reniformis were achieved by solarization in 1984. Irrigation before covering soil with polyethylene improved (P = 0.01) the effects of solarization in reducing the population densities of Heterodera cajani. Similar trends in population density reductions were observed in 1985, but the solarization effects were not the same. Nematode population reductions in the 1984-85 season were evident until near crop harvest, but in the 1985-86 season the effects on nematode populations were not as great and did not last until harvest. Factors such as rains during the solarization, duration of solarization, and sunshine hours may have influenced the efficacy of solarization. Solarization for two seasons reduced the population densities each year about the same as single season solarization, and residual effects of solarization on nematode populations did not last for more than a crop season.
在1984年和1985年的夏季月份（4月、5月、6月），用透明聚乙烯薄膜覆盖土壤进行土壤消毒，显著（P = 0.01）降低了寄生在鹰嘴豆和木豆上的线虫（南方根结线虫、肾形肾状线虫、短体线虫、穿刺短体线虫和针线虫）的种群密度。1984年通过土壤消毒，南方根结线虫卵和幼虫的种群密度降低了93%，短体线虫降低了99%，穿刺短体线虫降低了98%，肾形肾状线虫降低了100%。在覆盖聚乙烯薄膜之前进行灌溉，改善了（P = 0.01）土壤消毒在降低南方根结线虫种群密度方面的效果。1985年观察到了类似的种群密度降低趋势，但土壤消毒效果并不相同。在1984 - 1985季，线虫种群数量的减少在作物收获前一直很明显，但在1985 - 1986季，对线虫种群的影响没那么大，也没有持续到收获期。土壤消毒期间的降雨、土壤消毒持续时间和日照时数等因素可能影响了土壤消毒的效果。连续两个季节进行土壤消毒，每年对线虫种群密度的降低幅度与单季土壤消毒大致相同，且土壤消毒对线虫种群的残留影响不会持续超过一个作物季。
