Minton N A, Parker M B
J Nematol. 1987 Jan;19(1):38-43.
Management of Meloidogyne incognita on soybean as affected by winter small grain crops or fallow, two tillage systems, and nematicides was studied. Numbers of M. incognita did not differ in plots planted to wheat and rye. Yields of soybean planted after these crops also did not differ. Numbers of M. incognita were greater in fallow than in rye plots, but soybean yield was not affected by the two treatments. Soybean yields were greater in subsoil-plant than in moldboard plowed plots. Ethylene dibromide reduced nematode population densities more consistently than aldicarb and phenamiphos. Also, ethylene dibromide increased yields the most and phenamiphos the least. There was a positive correlation (P = 0.001) of seed size (weight of 100 seeds) with yield (r = 0.79), indicating that factors affecting yield also affected seed size.
研究了冬季小粒作物或休耕、两种耕作制度以及杀线虫剂对大豆上南方根结线虫的防治效果。种植小麦和黑麦的地块中南方根结线虫的数量没有差异。这些作物之后种植的大豆产量也没有差异。休耕地块中南方根结线虫的数量比黑麦地中的多，但两种处理对大豆产量没有影响。深耕种植的大豆产量高于铧式犁耕地块。二溴乙烷比涕灭威和克线磷更能持续降低线虫种群密度。此外，二溴乙烷使产量增加最多，克线磷使产量增加最少。种子大小（100粒种子的重量）与产量呈正相关（P = 0.001）（r = 0.79），表明影响产量的因素也影响种子大小。
