Assessment of Nutrient Leaching Losses and Crop Uptake with Organic Fertilization, Water Saving Practices and Reduced Inorganic Fertilizer
文献类型： 外文期刊
作者： Liu, Xiaotong 1 ; Bashir, Muhammad Amjad 2 ; Geng, Yucong 4 ; Raza, Qurat-Ul-Ain 2 ; Rehim, Abdur 2 ; Aon, Muhammad 2 ; Luo, Jianhang 1 ; Zhao, Ying 1 ; Zhang, Xuejun 1 ; Liu, Hongbin 4 ;
作者机构： 1.Ningxia Acad Agr & Forestry Sci, Inst Agr Resources & Environm, Yinchuan 750002, Peoples R China
2.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Multan 60800, Pakistan
3.Univ Layyah, Coll Agr, Layyah 31200, Pakistan
4.Chinese Acad Agr Sci CAAS, Inst Agr Resources & Reg Planning, Key Lab Nonpoint Source Pollut Control, Minist Agr, Beijing 100081, Peoples R China
关键词： Corn production; feeding system; water consumption ef fi ciency; sustainable agriculture; water use
期刊名称：PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：1.7； 五年影响因子：1.4 ）
ISSN： 0031-9457
年卷期： 2023 年 92 卷 5 期
页码：
收录情况： SCI
摘要： The increasing world population has forced excessive chemical fertilizer and irrigation to complete the global food demand, deteriorating the water quality and nutrient losses. Short-term studies do not compile the evidences; therefore, the study aimed to identify the effectiveness of reduced doses of inorganic fertilizer and water-saving practices, hence, a six-year experiment (2015-2020) was conducted in China to address the knowledge gap. The experimental treatments were: farmer accustomed fertilization used as control (525:180:30 kg NPK ha-1), fertilizer decrement (450:150:15 kg NPK ha-1), fertilizer decrement + water-saving irrigation (450:150:15 kg NPK ha-1), application of organic and inorganic fertilizer + water-saving irrigation (375:120:0 kg NPK ha-1 + 4.5 tones organ-ic fertilizer ha-1), and application of controlled-release fertilizer (80:120:15 kg NPK ha-1). Each treatment was replicated thrice following a randomized complete block design. The results achieved herein showed that control has the highest losses in the six-year study for total nitrogen (225.97 mg L-1), total soluble nitrogen (121.58 mg L-1), nitrate nitrogen (0.93 mg L-1), total phosphorus (0.57 mg L-1), and total soluble phosphorus (0.57 mg L-1) respectively. Reduced fertilizer and water application improved crop nutrient uptake, nitrogen concentration was significantly enhanced with organic and inorganic fertilizer + water-saving irrigation, P concentration was increased with fertilizer decrement + water-saving irrigation, and K concentration was improved with fertilizer decrement + water-saving irrigation. Hence, this study concludes that reduced inorganic fertilizer dose combined with water-saving practices is significantly helpful in reducing nutrient leaching losses and improving nutrient uptake and water pollution. Further studies are needed to explore the impacts of reduced fertilization and water-saving irrigation on leaching losses. The benefits at different climatic conditions, soil types, and fertilizer types with application methods are also a research gap.
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