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首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Phosphonate fertilizers suppressed root knot nematodes Meloidogynejavanica and M. Incognita
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Phosphonate fertilizers suppressed root knot nematodes Meloidogynejavanica and M. Incognita

机译：磷肥可抑制根结线虫Meloidogynejavanica和M. Incognita

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摘要

The efficacy of the phosphonate fertilizers, Calphos" (a.i. calcium phosphonate), Magphos~R (a.i. magnesium phos-phonate and potassium phosphonate) and Phosphoros~R (a.i. potassium phosphonate) against two species of root knot nematodes (RKN), Meloidogyne javanica and M. incognita is evaluated. Laboratory experiments showed that Calphos~R, M agphos~R and their main components inhibited egg hatching and caused 100% mortality of the second stage juveniles (J2s) of the two RKN species; the hatching inhibition effects persisted after transferring the egg masses of both species to water. However, Phosphoros~R (0.5%) did not suppress egg hatching or the survival of J2s of both RKN species. No hatching occurred when egg masses were treated for one week with the nematicide Vydate L~R (2 ml/1), however, J2s hatched when the Vydate L~R treated egg masses were moved to water. The glasshouse study indicated that Magphos~R, Calphos~R and Phosphoros~R reduced root galling caused by M. javanica by 98, 66 and 47%,respectively, in comparison to the untreated controls. Magphos~R resulted in the lowest number of root galls formed by M. incognita, the reduction was 84%. In contrast, Calphos~R and Phosphoros~R reduced galling by 47 and 39%, respectively. The Magphos~R treatment resulted in the lowest numbers of egg masses and the lowest reproductive factor (RF) of both nematode species. However, plants treated with Phosphoros~R resulted in higher foliage weights compared with the application of the other two fertilizers and the untreated plants.
机译：膦酸盐肥料“ Calphos”（膦酸钙），Magphos〜R（膦酸镁和膦酸钾）和Phosphoros〜R（磷化钾）对两种根结线虫（RKN），Meloidogyne javanica的功效实验室实验表明，Calphos〜R，M agphos〜R及其主要成分抑制卵孵化，并导致两个RKN物种的第二阶段幼虫（J2s）死亡，其孵化抑制作用持续存在两种蛋的卵都转移到水中后，Phosphoros〜R（0.5％）不能抑制卵的孵化或两种RKN物种的J2s的存活，用杀线虫剂Vydate处理卵量一周后没有孵化。 L〜R（2 ml / 1），但是当Vydate L〜R处理过的卵团移到水中时，J2s孵出，温室研究表明，Magphos〜R，Calphos〜R和Phosphoros〜R减少了由M引起的根root 。javanica by 98与未处理的对照组相比，分别为66％和47％。 Magphos〜R导致隐孢子虫形成的根gall最少，减少了84％。相反，Calphos〜R和Phosphoros〜R分别将磨损减少了47％和39％。 Magphos〜R处理导致两种线虫物种的卵量最低，繁殖因子（RF）最低。然而，与其他两种肥料和未处理的植物相比，用Phosphoros〜R处理的植物导致较高的叶重。

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