Minton N A, Parker M B, Sumner D R
J Nematol. 1985 Jul;17(3):314-21.
Nematode and disease problems of irrigated, double-cropped soybean and corn, and zinc deficiency of corn were investigated. Ethylene dibromide, phenamiphos, and aldicarb were equally effective for controlling nematodes and increasing yields of corn planted minimum-till and soybean planted in a moldboard plow prepared seedbed. The residual effects on yields of nematicides applied to the preceeding crop occurred during 3 years for soybean and 1 year for corn. Fusarium wilt symptoms of soybean that developed during 2 years of the study were less severe in all nematicide-treated plots than in control plots. Typical zinc deficiency symptoms on 30-day-old corn plants were observed during 1 year of the study in certain plots. Symptoms were not evident on plants grown on plots treated with ethylene dibromide, and only occasional plants had symptoms on plots treated with phenamiphos and aldicarb. The amount of yield response directly related to nematode control could not be determined because of the apparent interaction of nematodes on the expression of Fusarium wilt of soybean. Our study strongly indicates that the expression of Fusarium wilt of soybean and zinc deficiency in corn are influenced by nematodes and that nematicides will reduce their severity.
对灌溉双季大豆和玉米的线虫及病害问题，以及玉米的缺锌情况进行了调查。二溴乙烷、苯线磷和涕灭威在控制线虫和提高免耕种植的玉米以及在铧式犁整地苗床种植的大豆产量方面效果相同。前茬作物施用杀线虫剂对后茬作物产量的残留影响在大豆上持续3年，在玉米上持续1年。在研究的2年中出现的大豆枯萎病症状，在所有使用杀线虫剂处理的地块中都比对照地块轻。在研究的1年中，在某些地块观察到30日龄玉米植株出现典型的缺锌症状。在用二溴乙烷处理的地块上生长的植株没有明显症状，在用苯线磷和涕灭威处理的地块上只有偶尔的植株有症状。由于线虫对大豆枯萎病表达的明显相互作用，无法确定与线虫控制直接相关的产量反应量。我们的研究强烈表明，大豆枯萎病的表达和玉米的缺锌受线虫影响，杀线虫剂将减轻其严重程度。
