Frontiers in Plant Science (Sep 2024)
Quantification of spatial-temporal light interception of crops in different configurations of soybean-maize strip intercropping
- Fu Jin,
- Fu Jin,
- Fu Jin,
- Zhihua Wang,
- Zhihua Wang,
- Zhihua Wang,
- Haizhao Zhang,
- Haizhao Zhang,
- Haizhao Zhang,
- Sirong Huang,
- Sirong Huang,
- Sirong Huang,
- Meng Chen,
- Meng Chen,
- Meng Chen,
- Titriku John Kwame,
- Titriku John Kwame,
- Titriku John Kwame,
- Taiwen Yong,
- Taiwen Yong,
- Taiwen Yong,
- Xiaochun Wang,
- Xiaochun Wang,
- Xiaochun Wang,
- Feng Yang,
- Feng Yang,
- Feng Yang,
- Jiang Liu,
- Jiang Liu,
- Jiang Liu,
- Liang Yu,
- Liang Yu,
- Liang Yu,
- Tian Pu,
- Tian Pu,
- Akash Fatima,
- Raheela Rahman,
- Yanhong Yan,
- Wenyu Yang,
- Wenyu Yang,
- Wenyu Yang,
- Yushan Wu,
- Yushan Wu,
- Yushan Wu
Affiliations
- Fu Jin
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Fu Jin
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Fu Jin
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Zhihua Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Zhihua Wang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Zhihua Wang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Haizhao Zhang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Haizhao Zhang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Haizhao Zhang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Sirong Huang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Sirong Huang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Sirong Huang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Meng Chen
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Meng Chen
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Meng Chen
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Titriku John Kwame
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Titriku John Kwame
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Titriku John Kwame
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Taiwen Yong
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Taiwen Yong
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Taiwen Yong
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Xiaochun Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Xiaochun Wang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Xiaochun Wang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Feng Yang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Feng Yang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Feng Yang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Jiang Liu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Jiang Liu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Jiang Liu
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Liang Yu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Liang Yu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Liang Yu
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Tian Pu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Tian Pu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Akash Fatima
- Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
- Raheela Rahman
- Department of Plant Breeding and Genetic, University of Agriculture, Faisalabad, Pakistan
- Yanhong Yan
- College of Grassland science and technology, Sichuan Agricultural University, Chengdu, China
- Wenyu Yang
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Wenyu Yang
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Wenyu Yang
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- Yushan Wu
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
- Yushan Wu
- Sichuan Engineering Research Center for Crop Strip Intercropping System, Sichuan Agricultural University, Chengdu, China
- Yushan Wu
- Key Laboratory of Crop Eco- physiology and Farming System in Southwest of China, Sichuan Agricultural University, Chengdu, China
- DOI
- https://doi.org/10.3389/fpls.2024.1376687
- Journal volume & issue
-
Vol. 15
Abstract
Intercropping can improve light interception and crop yield on limited farmlands. The light interception rate in intercropping is determined by row configuration. Quantifying the spatio-temporal light interception of intercrops is very important for improving crop yields by optimizing the row configuration. A two-year field experiment was conducted at two sites to quantify the responses of the light interception rate of intercrops to five treatments: two rows of maize alternated with three rows of soybean (2M3S), two rows of maize alternated four rows of soybean (2M4S), two rows of maize alternated five rows of soybean (2M5S), sole soybean (SS), and sole maize (SM). We developed a multiple regression model based on the sine of the solar elevation angle (sin(h)) and crop leaf area density (LAD) to quantify the spatio-temporal light interception of intercrops. The predicted light interception rate was positively correlated with the measured values of photosynthetically active radiation (R2 > 0.814) and dry matter (R2 > 0.830). Increasing soybean rows led to an increase in light interception of both soybean and the lower layer of maize. However, this also resulted in a decrease in light interception in the upper layer of maize. At the two sites, compared to 2M3S, the annual average cumulative light interception of soybean in 2M5S increased by 44.73% and 47.18%, that of the lower layer of maize in 2M5S increased by 9.25% and 8.04%, and that of whole canopy of maize decreased by 13.77% and 17.74% respectively. The changes in dry matter and yield of intercrops were consistent with the change in light interception, which further verified the high accuracy of the light interception model. The annual average maize yield of 2M5S was 6.03% and 6.16% lower but the soybean yield was 23.69% and 28.52% higher than that of 2M3S. On the basis of system yield, the best performance was recorded in 2M4S at the two sites. In summary, the newly created light interception model performs well in the quantification of the temporal and spatial changes in crop light interception in strip intercropping and has potential applications in other configurations. Optimizing row configurations across climatic regions to enhance light interception and yield at the system level will become a future target.
Keywords
