Assessment of Nutrient Leaching Losses and Crop Uptake with Organic Fertilization, Water Saving Practices and Reduced Inorganic Fertilizer

被引:3
|
作者
Liu, Xiaotong [1 ]
Bashir, Muhammad Amjad [2 ,3 ]
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 ]
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
基金
中国国家自然科学基金;
关键词
Corn production; feeding system; water consumption ef fi ciency; sustainable agriculture; water use; CONTROLLED IRRIGATION; NITROGEN-FERTILIZER; RUNOFF LOSSES; SOIL; MANAGEMENT; YIELD; CHINA; POLLUTION; DRAINAGE; SYSTEMS;
D O I
10.32604/phyton.2023.026735
中图分类号
Q94 [植物学];
学科分类号
071001 ;
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.
引用
收藏
页码:1555 / 1570
页数:16
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