@Article{phyton.2023.026735,
AUTHOR = {Xiaotong Liu, Muhammad Amjad Bashir, Yucong Geng, Qurat-Ul-Ain Raza, Abdur Rehim, Muhammad Aon, Jianhang Luo, Ying Zhao, Xuejun Zhang, Hongbin Liu},
TITLE = {Assessment of Nutrient Leaching Losses and Crop Uptake with Organic Fertilization, Water Saving Practices and Reduced Inorganic Fertilizer},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {92},
YEAR = {2023},
NUMBER = {5},
PAGES = {1555--1570},
URL = {http://www.techscience.com/phyton/v92n5/51864},
ISSN = {1851-5657},
ABSTRACT = {<p>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<sup>−1</sup>), fertilizer decrement (450:150:15 kg NPK ha<sup>−1</sup>), fertilizer decrement + water-saving irrigation (450:150:15 kg NPK ha<sup>−1</sup>), application of organic and inorganic fertilizer + water-saving irrigation (375:120:0 kg NPK ha<sup>−1</sup> + 4.5 tones organic fertilizer ha<sup>−1</sup>), and application of controlled-release fertilizer (80:120:15 kg NPK ha<sup>−1</sup>). 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<sup>−1</sup>), total soluble nitrogen (121.58 mg L<sup>−1</sup>), nitrate nitrogen (0.93 mg L<sup>−1</sup>), total phosphorus (0.57 mg L<sup>−1</sup>), and total soluble phosphorus (0.57 mg L<sup>−1</sup>) 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.</p>
},
DOI = {10.32604/phyton.2023.026735}
}