Promotion of crop yield by compost application is generally thought to be ascribed to a better supply of macro and micronutrients, however the importance of compost DOM on plant growth has not been well demonstrated. In this study, composting of chicken manure, spent mushroom and sawdust was conducted under aerobic or anaerobic condition to determine the effects of compost DOM on plant growth. It was found that dissolved organic matter (DOM) first increased and then decreased in compost, and DOM of anaerobic compost was slightly higher than that of aerobic compost. When compost extract was applied to maize, among N, P, K and DOM content, it was DOM content that was most significantly and strongly related to plant biomass (r=0.843, p＜0.001). Compost DOM was also strongly related to soil properties, the improvement of which can also promote plant growth. Compost application confirmed that higher compost DOM results in greater plant biomass. In order to facilitate compost DOM accumulation, we designed a novel composting process which combined aerobic and anaerobic treatments, and the resulting compost (A-Ana compost) with the highest amount of DOM displayed the best performance in promotion of plant growth. A-Ana compost was able to increase maize biomass by 32.71% and 12.40% compared with only anaerobic or aerobic compost, respectively. Therefore, DOM is a critical factor determining compost quality and it is feasible to manipulate composting oxygen supply condition to increase compost DOM, which will lead to increased plant yield.

人们普遍认为，通过堆肥促进作物产量的增长归因于大量微量元素和微量元素的更好供应，但是堆肥DOM对植物生长的重要性尚未得到充分证明。在这项研究中，在有氧或厌氧条件下对鸡粪，废蘑菇和锯末进行堆肥，以确定堆肥DOM对植物生长的影响。结果发现，堆肥中溶解性有机物（DOM）先升高后降低，厌氧堆肥的DOM略高于需氧堆肥。在玉米上施用堆肥提取物时，N，P，K和DOM含量中，DOM含量与植物生物量之间关系最为显着（r = 0.843，p ＜0.001）。堆肥DOM也与土壤特性密切相关，改善也可以促进植物生长。堆肥的应用证实，较高的堆肥DOM可导致更大的植物生物量。为了促进堆肥DOM的积累，我们设计了一种新的堆肥工艺，该工艺将好氧和厌氧处理相结合，最终得到的堆肥（A-Ana堆肥）中DOM的含量最高，在促进植物生长方面表现出最好的性能。与仅厌氧或好氧堆肥相比，A-Ana堆肥分别可使玉米生物量增加32.71％和12.40％。因此，DOM是决定堆肥质量的关键因素，控制堆肥供氧条件来增加堆肥DOM是可行的，这将导致植物产量的增加。为了促进堆肥DOM的积累，我们设计了一种新的堆肥工艺，该工艺将好氧和厌氧处理相结合，最终得到的堆肥（A-Ana堆肥）中DOM的含量最高，在促进植物生长方面表现出最好的性能。与仅厌氧或好氧堆肥相比，A-Ana堆肥分别可使玉米生物量增加32.71％和12.40％。因此，DOM是决定堆肥质量的关键因素，控制堆肥供氧条件来增加堆肥DOM是可行的，这将导致植物产量的增加。为了促进堆肥DOM的积累，我们设计了一种新的堆肥工艺，该工艺将好氧和厌氧处理相结合，最终得到的堆肥（A-Ana堆肥）中DOM的含量最高，在促进植物生长方面表现出最好的性能。与仅厌氧或好氧堆肥相比，A-Ana堆肥分别可使玉米生物量增加32.71％和12.40％。因此，DOM是决定堆肥质量的关键因素，控制堆肥供氧条件来增加堆肥DOM是可行的，这将导致植物产量的增加。与仅厌氧或好氧堆肥相比，A-Ana堆肥分别可使玉米生物量增加32.71％和12.40％。因此，DOM是决定堆肥质量的关键因素，控制堆肥供氧条件来增加堆肥DOM是可行的，这将导致植物产量的增加。与仅厌氧或好氧堆肥相比，A-Ana堆肥分别可使玉米生物量增加32.71％和12.40％。因此，DOM是决定堆肥质量的关键因素，控制堆肥供氧条件来增加堆肥DOM是可行的，这将导致植物产量的增加。