Response of Corn Yield to Water Retaining Agents, Inhibitors, and Corn Stalks Addition in Semi-arid Cropland
文献类型： 外文期刊
第一作者： Wu, Kaikuo
作者： Wu, Kaikuo;Lv, Na;Meng, Yue;Xue, Yan;Song, Yuchao;Gong, Ping;Zhang, Lili;Lv, Na;Meng, Yue;Bai, Wei;Han, Mei;Xie, Xueshi;Wang, Tingting
作者机构：
关键词： Polyacrylamide; Potassium polyacrylate; NBPT; DMPP; Corn stalks
期刊名称：BIORESOURCES （ 影响因子：1.3； 五年影响因子：1.5 ）
ISSN： 1930-2126
年卷期： 2024 年 19 卷 2 期
页码：
收录情况： SCI
摘要： Drought, excessive use of nitrogen fertilizer, and decline in soil organic matter threaten corn production. This study investigated the potential of water retaining agents, inhibitors, and corn stalks in enhancing soil physicochemical properties to bolster corn yield in semi -arid farmlands. In our study, polyacrylamide addition increased the content of ammonium nitrogen (NI4+-N) and nitrate nitrogen (NO3 - -N) in the seedling stage, exchangeable potassium (K) in the mature stage but decreased the content of available phosphorus (P) in the seedling stage. Potassium polyacrylate addition increased the content of NI4+-N and decreased the content of available P in the seedling stage. The addition of inhibitors decreased the content of NI4+-N and available P in the seedling stage, NO3 - -N and available P in the jointing stage, and NI4+-N in the mature stage, respectively. Corn stalks returning could maintain soil moisture, decrease the content of NI4+-N in the seedling stage and exchangeable K in the mature stage, and increase the content of available P and exchangeable K in the seedling stage. Combined application of inhibitors and corn stalks could increase soil organic carbon (SOC) and ensure corn yield, which was the best fertilization mode in semi -arid cropland.
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