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ORIGINAL RESEARCH article
Front. Agron.
Sec. Agroecological Cropping Systems
Volume 6 - 2024 |
doi: 10.3389/fagro.2024.1358127
This article is part of the Research Topic Agroecological Practices To Enhance Resilience Of Farming Systems View all 3 articles
Effect of Integrated Fertilizer and Plant Density Management on Yield, Root Characteristic and Photosynthetic Parameters in Maize on the semiarid Loess Plateau
Provisionally accepted
Shu y. Wang
1
Ting l. Fan
2*
Gang Zhao
2*
Ming s. Ma
2*
Kang n. Lei
2*
Shang z. Li
2*
Wan l. Cheng
2*
Yi Dang
2*
Lei Wang
2*
Jian j. Zhang
2*
Gang Zhou
2*
Xing m. Li
2*
Sheng l. Ni
2*
Fan Tinglu
2- 1 Institute of Crop, Gansu Academy of Agricultural Sciences (CAAS), Lanzhou, Gansu Province, China
- 2 Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Improving photosynthetic use efficiency in dryland agroecosystems to sustain high agricultural yields is a key responsibility for ensuring food security.Methods: This study was conducted in the regions on the semiarid Loess Plateau of China during 2018-2020. Dryland maize of Xianyu 335 comprised four modes: basic yield input (CK, plastic film mulching, 37500 plant.ha-1 of plant density and unfertilized), farmer input (FP, plastic film mulching, 45000 plant.ha-1 of plant density and inorganic nitrogen(N) and phosphate(P) fertilizer were 150kg.ha -1 and 90kg.ha -1 ), high yield and high-efficiency input (HH, full plastic-film mulching on double furrow, 67500 plant.ha -1 of plant density and N, P and organic manure(M) fertilizer were 230kg.ha -1 , 140kg.ha -1 and 1500kg.ha -1 ), and super high yield input (SH, full plastic-film mulching on double furrow, 9000 plant.ha -1 of plant density and N, P and organic M fertilizer were 300kg.ha -1 , 180kg.ha -1 and 7500kg.ha -1 ). The effects of different cultivation modes on yield, WUE, net photosynthetic rate(Pn), leaf area index(LAI), chlorophyll index(SPAD value) and root index were studied.The results showed that the value average of yield and WUE for CK were 7790kg and 17480kg.ha -1 in three years. SH, HH and FP cultivation modes of yield and WUE was significant higher compared with CK cultivation mode (P＜0.05). SH, HH and FP cultivation modes of yield and WUE increased by 34.01%, 48.68%, 56.39% and 34.34%, 47.99%, 57.99%, compared than CK cultivation mode. These differences were observed during the seedling stage, jointing stage, silking stage and filling stage.Year to year variation in performance of applied treatment, this improved in CK cultivation mode significantly enhanced SPAD value, Pn, LAI and the root index than SH, HH and FP cultivation modes. The yield exhibited a positive correlation with the WUE, SPAD value, Pn, LAI. The SH cultivation mode was the highest yields.The results indicated that maize yield and WUE could be increased through integrating and optimizing cultivation techniques in maize production on the semiarid western Loess Plateau of China. The SH cultivation mode was the highest yields.
Keywords: Maize, yield, Water use efficiency, Photosynthetic parameters, Root index, Semiarid Loess Plateau
Received: 19 Dec 2023; Accepted: 29 May 2024.
Copyright: © 2024 Wang, Fan, Zhao, Ma, Lei, Li, Cheng, Dang, Wang, Zhang, Zhou, Li, Ni and Tinglu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Ting l. Fan, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Gang Zhao, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Ming s. Ma, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Kang n. Lei, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Shang z. Li, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Wan l. Cheng, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Yi Dang, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Lei Wang, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Jian j. Zhang, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Gang Zhou, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Xing m. Li, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
Sheng l. Ni, Gansu Academy of Sciences, Lanzhou, Gansu Province, China
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