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首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Soybean yield and Heterodera glycines responses to liquid swine manure in nematode suppressive soil and conducive soil.
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Soybean yield and Heterodera glycines responses to liquid swine manure in nematode suppressive soil and conducive soil.

机译：线虫抑制性土壤和有益土壤中，大豆产量和异型大豆甘氨酸对猪粪肥的响应。

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摘要

The soybean cyst nematode (SCN), Heterodera glycines, is a major factor limiting soybean yield. Experiments were conducted in 2009 and 2010 to determine the effects of liquid swine manure and chemical fertilizer PK on soybean and corn yields, and on SCN population in an SCN-suppressive field (S-Site) and an SCN-conducive field (C-Site) in Minnesota. The experiment was a split-plot design with crop sequences as main plots and fertilizer treatments as subplots. The 2-yr crop sequences were Sus-Sus, Res- Sus, and Corn-Sus, where Sus was SCN-susceptible soybean, and Res was SCN-resistant soybean. The fertilizer treatments were manure, PK, and a nonfertilizer as control. Manure did not reduce SCN egg population density but resulted in 31% lower SCN second-stage juvenile (J2) population density at the S-Site at 45 d after planting (DAP) in 2009. Manure also reduced spiral nematode (Helicotylenchus spp.) population density by 52% compared with PK and nonfertilizer treatments at S-Site at 45 DAP in 2009. The crop sequence of Corn-Sus and Res-Sus reduced the SCN egg and J2 but increased spiral nematode population density at both sites. An increase of 1.4 Mg/ha and 0.5 Mg/ha in yield of susceptible soybean was observed in manure and PK treatments, respectively, at the C-Site in 2009. Corn yield was 2.8 Mg/ha and 5.0 Mg/ha greater when treated with manure than nonfertilizer at the S-Site and C-Site, respectively. This study suggests that soil fertility management may be a useful strategy to alleviate the SCN damage to soybean.
机译：大豆孢囊线虫（SCN），异戊二烯甘氨酸，是限制大豆产量的主要因素。在2009年和2010年进行了实验，以确定液态猪粪肥和化肥PK对大豆和玉米产量以及SCN抑制田（S-Site）和SCN导电田（C-Site）中SCN种群的影响）在明尼苏达州。该实验是一个分块设计，以作物序列为主要地块，以肥料处理为子图。 2年作物的序列是Sus-Sus，Res-Sus和Corn-Sus，其中Sus是对SCN敏感的大豆，而Res是对SCN抗性的大豆。化肥处理为粪肥，PK和非肥料作为对照。粪便并未降低SCN卵的种群密度，但导致2009年播种后45 d S-Site的SCN二级幼虫（J2）种群密度降低了31％。粪便还减少了螺旋线虫（Helicotylenchus spp。）。与2009年DAP第45天的S-Site的PK和非肥料处理相比，玉米的种群密度增加了52％。Corn-Sus和Res-Sus的作物序列减少了SCN卵和J2，但增加了两个地点的螺旋线虫种群密度。在2009年的C-Site，粪肥和PK处理分别使易感大豆的产量提高了1.4 Mg / ha和0.5 Mg / ha。处理后的玉米产量分别为2.8 Mg / ha和5.0 Mg / ha S站点和C站点的肥料比非肥料的肥料要多。这项研究表明，土壤肥力管理可能是减轻SCN对大豆损害的有用策略。

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