文献类型： 外文期刊

作者： Zhao, Huan ¹ ; Xie, Tingting ³ ; Xiao, Houjun ² ; Gao, Ming ¹ ;

作者机构： 1.Southwest Univ, Coll Resources & Environm, Chongqing 400716, Peoples R China

2.Guizhou Acad Agr Sci, Guizhou Inst Soil & Fertilizer, Guiyang 550006, Peoples R China

3.Guizhou Testing Technol Res & Applicat Ctr, Guiyang 550014, Peoples R China

关键词： biochar; maize-cabbage system; yield; crop quality; N utilization efficiency; soil inorganic N

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.408； 五年影响因子：3.459 ）

ISSN：

年卷期： 2022 年 12 卷 7 期

页码：

收录情况： SCI

摘要： Optimizing fertilization strategies is crucial for obtaining high crop yields and efficient N utilization. This study aimed to understand the potential increase in crop yield and the N utilization efficiency under biochar-based fertilizer (BF) in a maize-Chinese cabbage rotation system. Biochar-based slow-release fertilizer (BF) is an important nutrient-efficient management strategy. The yields and growth-related traits of the crops, N utilization efficiency, quality, and dynamic changes in soil inorganic N in a maize-cabbage rotation system were investigated in a pot experiment under three N fertilizer application strategies in 2019-2020; the maize stage included (1) zero-N fertilizer, i.e., control (N 0 g pot(-1)); (2) NPK (N 5.25 g pot(-1)); and (3) BF (N 5.25 g pot(-1)). The Chinese cabbage stage included (1) zero-N fertilizer, i.e., control (N 0 g pot(-1)); (2) NPK (N 6.25 g pot(-1)); and (3) BF (N 6.25 g pot(-1)). Compared with the CK and NPK treatments, the BF treatment had the highest average maize and Chinese cabbage yields at 86.99 g plant(-1) and 498.88 g plant(-1), respectively. BF improved the plant height, stem diameter, and ear height of maize and the leaf length, leaf width, and leaf number of Chinese cabbage, as well as increased the N utilization efficiency of maize and cabbage. BF increased the starch content of maize grain and the amino acid, sugar, and vitamin C contents of cabbage. In the critical growth stages of maize and Chinese cabbage, BF application increased the content of soil inorganic N, which coincided with the nutrient requirements in the critical growth stages of the crops. Overall, BF is an effective method to improve crop yield and N utilization in the maize-Chinese cabbage rotation systems and is a fertilization strategy with broad applicability prospects.