Cover cropping with oilseed radish ( Raphanus sativus ) alone does not enhance deep burrowing earthworm ( Lumbricus terrestris ) midden counts
Cover cropping with oilseed radish ( Raphanus sativus ) alone does not enhance deep burrowing earthworm ( Lumbricus terrestris ) midden counts
复制标题
仅用油籽萝卜（ Raphanus sativus ）覆盖种植并不能增加深穴蚯蚓（ Lumbricus terrestris ）巢穴的数量
DOI：
10.1016/j.still.2016.07.013
复制
发表时间：
2017
影响因子：
6.5
通讯作者：
Stroud J
中科院分区：
文献类型：
--
作者：
Stroud J
深穴蚯蚓是重要的生态系统服务提供者，但其种群数量因耕地而减少。我们需要更好地了解作物管理变化对蚯蚓的影响，并实施措施以增加其田间种群。目前两个趋势，在耕地种植的增加使用非反转耕作和冬季覆盖crough.Lumbricus terrestrisabundances估计使用midden计数两个田间试验比较耕作和覆盖crough.Lumbricus terrestrisabundances管理措施。长期（8年）田间试验结果表明，浅免耕对水稻产量有极显著（p <0.01）的影响。terrestrisabundances在4.3 middens每平方米，相比之下，深（约. 20厘米）非倒置耕作（每平方米3个中耕）和传统耕作（约20厘米）。25厘米）（每平方米1.9个贝冢），这表明这是倒置，而不是土壤扰动的深度，是有害的，他们的丰度。试验结果表明，萝卜覆盖栽培对苜蓿的生长影响不显著（p >0.05）。terrestrismidden计数，无论是在冬季覆盖作物或耕地轮作。实地观察发现，93%的贝冢与作物叶片（仍然附着在茎上）纳入洞穴，这可能是一种新的途径的农药暴露，需要进一步调查。
Deep burrowing earthworms are important ecosystem service providers but their populations are reduced by arable cultivations. We need to both better understand the impact of changes in crop management on earthworms and implement practices to enhance their in-field populations. Two current trends in arable cropping are the increased use of non-inversion tillage and over winter cover crops.Lumbricus terrestrisabundances were estimated using midden counting on two field trials comparing tillage and cover cropping management practices. The long running (8-year) field trial showed that shallow non-inversion tillage had significantly (p <0.01) greaterL. terrestrisabundances at 4.3 middens per m2, in comparison to deep (ca. 20 cm) non-inversion tillage (3 middens per m2) and conventional ploughing (ca. 25 cm) (1.9 middens per m2), indicating that it is inversion rather than the depth of soil disturbance that is detrimental to their abundance. All trials showed that cover cropping with oilseed radish had no significant (p >0.05) effect onL. terrestrismidden counts, either during winter cover cropping or within the arable rotation. Field observations identified that 93% of middens were associated with crop leaves (still attached to the stem) incorporated into the burrow which may be a novel route of agrochemical exposure and needs further investigation.