Bandwidth Row Ratio Configuration Affect Interspecific Effects and Land Productivity in Maize–Soybean Intercropping System
Abstract
:1. Introduction
2. Materials and Methods
2.1. Site Description
2.2. Experimental Design and Field Management
2.3. Data Collection and Measurements
2.3.1. Grain Yield and N, P and K Content
2.3.2. Nutrient Accumulation
2.3.3. Intercropping Advantage
- (1)
- Land equivalent ratio (LER): as a measure of yield advantage [25].
- (2)
- Nitrogen equivalent ratio (NER): As a measure of nitrogen uptake advantage in crops.
- (3)
- Net effect (NE), complementarity effect (CE), and select effect (SE): The NE includes two components: SE and CE [18].
- (4)
- Nutrient Aggressivity (NA): indicates the relative nitrogen uptake of intercrop A compared to the advantage of nitrogen uptake of intercrop B.
2.4. Statistical Analysis
3. Results
3.1. Effect of Different MSI Patterns on Crops Nutrients Accumulation
3.2. Effect of Different MSI on Crop Intercrop Advantage
3.3. Effects of Different MSI on Interspecific Relationships of Crops
3.4. Effects of Different MSI Patterns for Crop Yield
3.5. Effect of Different MSI Patterns on NE, SE and CE
3.6. Correlation Analysis of Intercropped Crops on Nutrient Aggressivity and Land Productivity
4. Discussion
4.1. Different Planting Patterns in Response to Land Productivity
4.2. Response of Different Planting Patterns to the Competitive of N, P and K in Crops
4.3. Response of Interspecific Effect to Crop Yield
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Years | pH | OM | AN | AP | AK |
---|---|---|---|---|---|
g kg−1 | mg kg−1 | mg kg−1 | mg kg−1 | ||
2018 | 5.74 | 19.79 | 105.00 | 14.22 | 257.01 |
2019 | 5.72 | 19.7 | 102.76 | 12.8 | 174.08 |
Treatments | Bandwidth | Maize-Soybean Row Ratio | Seed Spacing (Maize/Soybean) | Maize-Soybean Row Distance |
---|---|---|---|---|
B1R1 | 240 | 2:3 | 13.8/8.3 | 60 |
B1R2 | 240 | 2:4 | 13.8/11 | 40 |
B2R1 | 280 | 2:3 | 11.9/7.1 | 80 |
B2R2 | 280 | 2:4 | 11.9/9.5 | 60 |
SM | — | — | 23.8 | — |
SS | — | — | 13.3 | — |
Year | Treatments | Maize | Soybean | Group |
---|---|---|---|---|
kg ha−1 | ||||
2018 | B1R1 | 4797.00 c | 673.20 d | 5470.20 b |
B1R2 | 5146.50 b | 743.07 bc | 5889.57 a | |
B2R1 | 4355.73 d | 705.60 cd | 5061.33 c | |
B2R2 | 4450.00 d | 759.53 b | 5209.53 c | |
Sole | 6404.75 a | 1222.00 a | ||
2019 | B1R1 | 6550.00 b | 627.85 c | 7177.85 b |
B1R2 | 6977.78 b | 736.41 b | 7714.19 a | |
B2R1 | 5595.24 c | 611.90 c | 6207.14 c | |
B2R2 | 5780.95 c | 700.27 b | 6481.22 c | |
Sole | 7992.38 a | 823.11 a |
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Feng, L.; Yang, W.; Tang, H.; Huang, G.; Wang, S. Bandwidth Row Ratio Configuration Affect Interspecific Effects and Land Productivity in Maize–Soybean Intercropping System. Agronomy 2022, 12, 3095. https://doi.org/10.3390/agronomy12123095
Feng L, Yang W, Tang H, Huang G, Wang S. Bandwidth Row Ratio Configuration Affect Interspecific Effects and Land Productivity in Maize–Soybean Intercropping System. Agronomy. 2022; 12(12):3095. https://doi.org/10.3390/agronomy12123095
Chicago/Turabian StyleFeng, Liang, Wenting Yang, Haiying Tang, Guoqin Huang, and Shubin Wang. 2022. "Bandwidth Row Ratio Configuration Affect Interspecific Effects and Land Productivity in Maize–Soybean Intercropping System" Agronomy 12, no. 12: 3095. https://doi.org/10.3390/agronomy12123095