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Combining No-Tillage with Hairy Vetch Return Improves Production and Nitrogen Utilization in Silage Maize

文献类型： 外文期刊

作者： Li, Zhou 1 ; Sun, Xingrong 2 ; Pan, Jie 1 ; Wang, Tao 3 ; Li, Yuan 4 ; Li, Xiuting 2 ; Hou, Shuai 2 ;

作者机构： 1.Guizhou Univ, Coll Anim Sci, Key Lab Anim Genet Breeding & Reprod Plateau Mount, Minist Educ, Guiyang 550025, Peoples R China

2.Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Peoples R China

3.Guizhou Acad Agr Sci, Rapeseed Res Inst, Guiyang 550008, Peoples R China

4.Nat Resources Inst Finland, Prod Syst Unit, Grasslands & Sustainable Farming, Halolantie 31A, FI-71750 Kuopio, Finland

关键词： conservation tillage; green manure; nutrient management; forage yield; economic benefits

期刊名称：PLANTS-BASEL （ 影响因子：4.0； 五年影响因子：4.4 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 15 期

页码：

收录情况： SCI

摘要： The combination of no-till farming and green manure is key to nourishing the soil and increasing crop yields. However, it remains unclear how to enhance the efficiency of green manure under no-till conditions. We conducted a two-factor field trial of silage maize rotated with hairy vetch to test the effects of tillage methods and returning. Factor 1 is the type of tillage, which is divided into conventional ploughing and no-tillage; factor 2 is the different ways of returning hairy vetch as green manure, which were also compared: no return (NM), stubble return (H), mulching (HM), turnover (HR, for CT only), and live coverage (LM, for NT only). Our findings indicate that different methods of returning hairy vetch to the field will improve maize yield and quality. The best results were obtained in CT and NT in HM and LM, respectively. Specifically, HM resulted in the highest dry matter quality and yield, with improvements of 35.4% and 31.9% over NM under CT, respectively. It also demonstrated the best economic and net energy performance. However, other treatments had no significant effect on the beneficial utilization and return of nutrients. The LM improved yields under NT by boosting soil enzyme activity, promoting nitrogen transformation and accumulation, and increasing nitrogen use efficiency for better kernel development. Overall, NTLM is best at utilizing and distributing soil nutrients and increasing silage maize yield. This finding supports the eco-efficient cultivation approach in silage maize production in the region.

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