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首页> 外文期刊>Soil Research >Impact of organic soil amendments, including poultry-litter biochar, on nematodes in a Riverina, New South Wales, vineyard
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Impact of organic soil amendments, including poultry-litter biochar, on nematodes in a Riverina, New South Wales, vineyard

机译：有机土壤改良剂（包括家禽凋落物生物炭）对新南威尔士州Riverina葡萄园线虫的影响

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This field trial investigated the effect on vineyard nematodes of organic soil amendments: poultry-litter (PL) biochar, composted cow manure, composted green waste and un-composted rice hulls. To investigate their effects on disease suppression, we chose a vineyard containing healthy grapevines proximal to grapevines with fungal root disease (caused by Ilyonectria spp.). Spring and winter surveys showed that nematodes did not interact with Ilyonectria root disease. Plant-parasitic citrus and ring nematodes predominated in deep soil (10-20 cm), whereas Rhabditis spp. (bacterial-feeder) and omnivorous Dorylaimidae (excluding plant-parasitic and predators) predominated in shallow soil (0-10 cm). After 2 years, the amendments generally decreased the total plant-parasitic nematode (TPPN) populations while increasing the total (non-plant-parasitic) free-living nematodes (TFLN), thus increasing the TFLN : TPPN ratios. PL biochar caused the greatest TPPN decreases (8.5- and 12.9-fold for diseased and asymptomatic grapevines, respectively). The changes caused by the organic amendments were less favourable in a drier season and for diseased grapevines, indicating the importance of seasonal conditions and initial disease status for interpretation of soil organic amendment trial results. This is the first vineyard investigation comparing the impact of PL biochar and other organic soil amendments on parasitic and non-parasitic nematodes.
机译：这项田间试验研究了有机土壤改良剂对家畜线虫的影响：有机垃圾，家禽垃圾，牛粪堆肥，绿色垃圾堆肥和未堆肥的稻壳。为了研究它们对疾病抑制的影响，我们选择了一个葡萄园，该葡萄园的健康葡萄藤靠近真菌根病（由伊利氏菌属引起）。春季和冬季调查显示，线虫并未与支气管根病相互作用。植物寄生的柑橘类和环状线虫在深层土壤（10-20厘米）中占主导地位，而横纹叶菌属。 （细菌饲养者）和杂食性Dorylaimidae（不包括植物寄生物和天敌）在浅土壤（0-10 cm）中占主导地位。 2年后，修正案总体上减少了植物寄生线虫（TPPN）的总数，同时增加了总的（非植物寄生）自由生活线虫（TFLN），从而提高了TFLN：TPPN的比率。 PL生物炭引起最大的TPPN下降（患病和无症状葡萄分别为8.5倍和12.9倍）。在干旱的季节和患病的葡萄树中，由有机改良剂引起的变化不利，这表明季节性条件和初始疾病状况对于解释土壤有机改良剂试验结果的重要性。这是第一次葡萄园调查，比较了PL生物炭和其他有机土壤改良剂对寄生和非寄生线虫的影响。

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