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Wheat Straw Incorporation Coupled With Direct Seeding Method Influence Nitrogen Uptake and Translocation in Rice

文献类型： 外文期刊

作者： Tian, Jinyu 1 ; Xing, Zhipeng 1 ; Guo, Baowei 1 ; Hu, Yajie 1 ; Wei, Haiyan 1 ; Gao, Hui 1 ; Zhang, Haipeng 1 ; Li, Min 2 ; Zhang, Hongcheng 1 ;

作者机构： 1.Yangzhou Univ, Jiangsu Ind Engn Res Ctr High Qual Japon Rice, Jiangsu Coinnovat Ctr Modern Prod Technol Grain Cr, Jiangsu Key Lab Crop Cultivat & Physiol,Res Inst R, Yangzhou, Jiangsu, Peoples R China

2.Guizhou Acad Agr Sci, Rice Res Inst Guizhou Prov, Guiyang, Guizhou, Peoples R China

关键词： direct seeding type; grain yield; nitrogen uptake; Richard's equation; straw incorporation

期刊名称：FOOD AND ENERGY SECURITY （ 影响因子：4.5； 五年影响因子：5.4 ）

ISSN： 2048-3694

年卷期： 2024 年 13 卷 6 期

页码：

收录情况： SCI

摘要： On-farm trials were performed to investigate the nitrogen (N) uptake, N translocation, and grain yield of rice planted via different direct seeding methods into a field after wheat straw incorporation. The study conducted using two direct seeding methods, dry direct seeding of rice (DDSR) and wet direct seeding of rice (WDSR), in a field without or with straw incorporation demonstrated that straw incorporation negatively influenced both grain yield and N uptake in direct-seeded rice. Compared with WDSR, DDSR suffered significant negative effects, with a 7.2% decrease in grain yield and an 8.0% decrease in N uptake. Additionally, N uptake in direct-seeded rice with straw addition decreased by 6.5% at the middle stage and 9.5% at the late stage compared with that without straw incorporation. Straw incorporation prolonged the initial phase of growth and thus shortened the N uptake days in the last two phases. Moreover, the total N uptake of rice was positively associated with the uptake rate and the uptake days during the latter stages. Specifically, WDSR exhibited a higher N uptake rate, N uptake days, and N translocation ability than DDSR, which increased the N uptake in stem and panicle, total N uptake, and grain yield at maturity. These results indicated that straw incorporation decreased grain yield and N uptake, which was related to the fewer N uptake days in the latter stages caused by the prolonged early growth stage for direct-seeded rice. Nevertheless, using WSDR in a field incorporated with straw alleviated the losses in N uptake and grain yield.

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