Liang Gong, Xiaojin Zou, Jiayi Xu, Chenxia Su, Liangshan Feng, Ying Wang, Yunting Fang, Lizhen Zhang, Zhanxiang Sun
{"title":"玉米-花生带状间作系统中玉米植株修剪通过减少遮阳提高花生产量","authors":"Liang Gong, Xiaojin Zou, Jiayi Xu, Chenxia Su, Liangshan Feng, Ying Wang, Yunting Fang, Lizhen Zhang, Zhanxiang Sun","doi":"10.1002/fes3.70105","DOIUrl":null,"url":null,"abstract":"<p>Shading from taller cereal plants often reduces the growth of shorter, intercropped legumes and the productivity of cereal-legume intercropping systems. To mitigate the effect of shade on companion crops, pruning (leaf cutting) maize plants at a seedling stage is an increasingly common practice. However, it is not clear if this leaf-removal strategy benefits leguminous crop yield without causing a loss in cereal crop yield. A 2-year field experiment was performed to investigate the impact of cutting maize leaves at V4 stage (T<sub>V4</sub>) and V5 stage (T<sub>V5</sub>) on the growth and yield of intercropped peanuts. Across 2 years, peanut yield was 22.9% higher in T<sub>V4</sub> and 33.5% higher in T<sub>V5</sub> treatments than it was in a nonleaf-cutting control, whereas maize grain yield was not affected, with a slight increase in T<sub>V4</sub> and a slight decrease in T<sub>V5</sub>. Compared with uncut controls, maize plant height was reduced by 30.2 cm (23.9%) in the T<sub>V4</sub> treatment and 49.2 cm (35.5%) in the T<sub>V5</sub> treatment, whereas photosynthetically active radiation reaching peanuts strips increased by 16.6% and 22.8%, respectively; the net photosynthetic rates of peanuts increased by 17.4% on average. Seedling leaf cutting shortened maize roots but increased peanut root length (28.6%) and surface area (30.8%) over time. The positive effects of seedling leaf cutting contributed to an increase in nitrogen absorption by 26.6% and 20.8% greater total biomass of peanuts. Cutting leaves at stage V4 resulted in a greater intercropping-system land equivalent ratio than cutting them at the V5 stage, whereas leaf cutting at the V5 stage contributes to a greater increase in the intercropped peanut yield. We demonstrate that cutting leaves of intercropped maize at the seedling stage improves peanut yield by optimizing the canopy light environment and modifying belowground root development of peanuts.</p>","PeriodicalId":54283,"journal":{"name":"Food and Energy Security","volume":"14 3","pages":""},"PeriodicalIF":4.5000,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/fes3.70105","citationCount":"0","resultStr":"{\"title\":\"Maize Plant Pruning Enhances Peanut Yield Through Mitigating Shading in a Maize–Peanut Strip Intercropping System\",\"authors\":\"Liang Gong, Xiaojin Zou, Jiayi Xu, Chenxia Su, Liangshan Feng, Ying Wang, Yunting Fang, Lizhen Zhang, Zhanxiang Sun\",\"doi\":\"10.1002/fes3.70105\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Shading from taller cereal plants often reduces the growth of shorter, intercropped legumes and the productivity of cereal-legume intercropping systems. To mitigate the effect of shade on companion crops, pruning (leaf cutting) maize plants at a seedling stage is an increasingly common practice. However, it is not clear if this leaf-removal strategy benefits leguminous crop yield without causing a loss in cereal crop yield. A 2-year field experiment was performed to investigate the impact of cutting maize leaves at V4 stage (T<sub>V4</sub>) and V5 stage (T<sub>V5</sub>) on the growth and yield of intercropped peanuts. Across 2 years, peanut yield was 22.9% higher in T<sub>V4</sub> and 33.5% higher in T<sub>V5</sub> treatments than it was in a nonleaf-cutting control, whereas maize grain yield was not affected, with a slight increase in T<sub>V4</sub> and a slight decrease in T<sub>V5</sub>. Compared with uncut controls, maize plant height was reduced by 30.2 cm (23.9%) in the T<sub>V4</sub> treatment and 49.2 cm (35.5%) in the T<sub>V5</sub> treatment, whereas photosynthetically active radiation reaching peanuts strips increased by 16.6% and 22.8%, respectively; the net photosynthetic rates of peanuts increased by 17.4% on average. Seedling leaf cutting shortened maize roots but increased peanut root length (28.6%) and surface area (30.8%) over time. The positive effects of seedling leaf cutting contributed to an increase in nitrogen absorption by 26.6% and 20.8% greater total biomass of peanuts. Cutting leaves at stage V4 resulted in a greater intercropping-system land equivalent ratio than cutting them at the V5 stage, whereas leaf cutting at the V5 stage contributes to a greater increase in the intercropped peanut yield. We demonstrate that cutting leaves of intercropped maize at the seedling stage improves peanut yield by optimizing the canopy light environment and modifying belowground root development of peanuts.</p>\",\"PeriodicalId\":54283,\"journal\":{\"name\":\"Food and Energy Security\",\"volume\":\"14 3\",\"pages\":\"\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2025-06-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/fes3.70105\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Food and Energy Security\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/fes3.70105\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FOOD SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food and Energy Security","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/fes3.70105","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Maize Plant Pruning Enhances Peanut Yield Through Mitigating Shading in a Maize–Peanut Strip Intercropping System
Shading from taller cereal plants often reduces the growth of shorter, intercropped legumes and the productivity of cereal-legume intercropping systems. To mitigate the effect of shade on companion crops, pruning (leaf cutting) maize plants at a seedling stage is an increasingly common practice. However, it is not clear if this leaf-removal strategy benefits leguminous crop yield without causing a loss in cereal crop yield. A 2-year field experiment was performed to investigate the impact of cutting maize leaves at V4 stage (TV4) and V5 stage (TV5) on the growth and yield of intercropped peanuts. Across 2 years, peanut yield was 22.9% higher in TV4 and 33.5% higher in TV5 treatments than it was in a nonleaf-cutting control, whereas maize grain yield was not affected, with a slight increase in TV4 and a slight decrease in TV5. Compared with uncut controls, maize plant height was reduced by 30.2 cm (23.9%) in the TV4 treatment and 49.2 cm (35.5%) in the TV5 treatment, whereas photosynthetically active radiation reaching peanuts strips increased by 16.6% and 22.8%, respectively; the net photosynthetic rates of peanuts increased by 17.4% on average. Seedling leaf cutting shortened maize roots but increased peanut root length (28.6%) and surface area (30.8%) over time. The positive effects of seedling leaf cutting contributed to an increase in nitrogen absorption by 26.6% and 20.8% greater total biomass of peanuts. Cutting leaves at stage V4 resulted in a greater intercropping-system land equivalent ratio than cutting them at the V5 stage, whereas leaf cutting at the V5 stage contributes to a greater increase in the intercropped peanut yield. We demonstrate that cutting leaves of intercropped maize at the seedling stage improves peanut yield by optimizing the canopy light environment and modifying belowground root development of peanuts.
期刊介绍:
Food and Energy Security seeks to publish high quality and high impact original research on agricultural crop and forest productivity to improve food and energy security. It actively seeks submissions from emerging countries with expanding agricultural research communities. Papers from China, other parts of Asia, India and South America are particularly welcome. The Editorial Board, headed by Editor-in-Chief Professor Martin Parry, is determined to make FES the leading publication in its sector and will be aiming for a top-ranking impact factor.
Primary research articles should report hypothesis driven investigations that provide new insights into mechanisms and processes that determine productivity and properties for exploitation. Review articles are welcome but they must be critical in approach and provide particularly novel and far reaching insights.
Food and Energy Security offers authors a forum for the discussion of the most important advances in this field and promotes an integrative approach of scientific disciplines. Papers must contribute substantially to the advancement of knowledge.
Examples of areas covered in Food and Energy Security include:
• Agronomy
• Biotechnological Approaches
• Breeding & Genetics
• Climate Change
• Quality and Composition
• Food Crops and Bioenergy Feedstocks
• Developmental, Physiology and Biochemistry
• Functional Genomics
• Molecular Biology
• Pest and Disease Management
• Post Harvest Biology
• Soil Science
• Systems Biology