当前位置: X-MOL 学术Pedobiologia › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of organic inputs derived from pea and wheat root functional traits on soil protease activities
Pedobiologia ( IF 2.3 ) Pub Date : 2019-11-01 , DOI: 10.1016/j.pedobi.2019.150576
Nicolas Romillac , Séverine Piutti , Bernard Amiaud , Sophie Slezack-Deschaumes

Abstract Legume-derived organic inputs such as crop residues or compounds derived from rhizodeposition can influence soil microbial activities implicated in the degradation of organic N. Crops succeeding legumes can also be important drivers of such microbial activities, and trait-based approaches can be employed to better understand the influence of plants on soil microbial activities. The objective of this study was to examine the effects of organic inputs (rhizodeposits and crop residues) of previously planted pea together with wheat root traits on soil protease activities. We measured soil protease activities, soil variables describing C and N availability and microbial biomass N and wheat root functional traits related to resource acquisition and rhizodeposition at 5 wheat developmental stages. Soil protease activities were significantly increased by the addition of pea crop residues, whereas previous pea cropping (i.e., soil containing organic inputs derived from pea rhizodeposition) did not influence these activities. The percentage of fine roots

中文翻译:

豌豆和小麦根功能性状有机投入物对土壤蛋白酶活性的影响

摘要 豆科植物来源的有机投入物,如作物残留物或源自根际沉积的化合物,可以影响与有机氮降解有关的土壤微生物活动。继豆科植物之后的作物也可以是此类微生物活动的重要驱动因素,基于性状的方法可用于更好地了解植物对土壤微生物活动的影响。本研究的目的是检查先前种植的豌豆的有机投入物(根际沉积物和作物残留物)以及小麦根系性状对土壤蛋白酶活性的影响。我们测量了土壤蛋白酶活性、描述 C 和 N 有效性的土壤变量以及与 5 个小麦发育阶段的资源获取和根际沉积相关的微生物生物量 N 和小麦根功能性状。添加豌豆作物残留物后土壤蛋白酶活性显着增加,而之前的豌豆种植(即含有来自豌豆根际沉积的有机投入物的土壤)不影响这些活性。细根百分比
更新日期:2019-11-01
down
wechat
bug