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首页> 外文期刊>Nematological research >Pratylenchus penetrans population dynamics and cabbage growth under the continuous application of sawdust cattle manure composfor year-round cabbage cropping1
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Pratylenchus penetrans population dynamics and cabbage growth under the continuous application of sawdust cattle manure composfor year-round cabbage cropping1

机译：连续施用木屑牛粪组合物一年生大白菜作物的Partylenchus penetrans种群动态和白菜生长1

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Pratylenchus penetrans is a major nematode pest of vegetable crops in Japan. We investigated P. penetrans population dynamics and cabbage growth under the year-round application of sawdust cattle manure compost for continuous cabbage cropping (2002-2009) at Tsukuba, Japan. Cabbages were cultivated twice a year, during spring and autumn. Chemical fertilizer (CF), manure compost (MC) +1/5CF, CF + 3/5MC + crop residue (CR), a triple amount of MC +1/5CF, and 3MC + CR were applied to the field before transplanting the cabbages. Both the initial population (Pi) and final population (Pf) of P. penetrans were significantly high in CF, low in 3MC +1/5CF and 3MC + CR, and average in MC +1/5CF and CF + 3/5MC + CR in 2003-2005 and 2008-2009. Both PfiPi during cultivation and the decreased rate ofPifp/after cultivation showed no clear tendencies among compost treatments. In this study, host plant growth did not appear to be markedly restricted by the high densities of P. penetrans. By applying Seinhorst's formula on the Pi and Pf of P. penetrans, we obtained 2 curves for CF and 3MC + CR, with 16.45 and 4.54 representing equilibrium density", respectively. Pot experiment results supported the field experiment results, whereby the number of P. penetrans decreased as the quantity of Mしincreased (from 0 to 3%w/v). On the basis of these results, we concluded that manure compost application could have a suppressive effect on P. penetrans population dynamics.
机译：Pratylenchus penetrans是日本蔬菜作物的主要线虫害虫。我们调查了日本筑波市一年四季使用锯末牛粪堆肥进行连续白菜种植的P. penetrans种群动态和白菜生长。在春季和秋季，白菜每年栽培两次。在移栽之前，将化肥（CF），肥料堆肥（MC）+ 1 / 5CF，CF + 3 / 5MC +作物残渣（CR），三倍量的MC + 1 / 5CF和3MC + CR施用到田间。卷心菜。 Penetrans的初始种群（Pi）和最终种群（Pf）的CF值显着较高，3MC + 1 / 5CF和3MC + CR值均较低，MC + 1 / 5CF和CF + 3 / 5MC +平均值2003-2005年和2008-2009年的CR。在堆肥处理过程中，PfiPi的培养过程和Pifp /培养后速度的降低均未显示出明显的趋势。在这项研究中，寄主植物的生长似乎并未受到高密度的P. penetrans的明显限制。通过将Seinhorst公式应用到P.penetrans的Pi和Pf上，我们获得了CF和3MC + CR的两条曲线，分别为16.45和4.54代表平衡密度。”盆栽试验结果支持了田间试验结果，其中P数随着Mし含量的增加（从0％到3％w / v），Penetrans减少，根据这些结果，我们得出结论，粪肥堆肥的施用对P.penetrans种群动态有抑制作用。

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