| Jieba_C | Frequency | AntConc | Frequency | FDist | WordCloud |
| yield | 767 | yield | 768 | yield | yield |
| soil | 678 | soil | 678 | soil | soil |
| crop | 506 | crop | 506 | crop | plant |
| water | 368 | water | 368 | water | cover |
| study | 354 | study | 355 | study | crop |
| cover | 280 | cover | 280 | production | rate |
| production | 277 | production | 277 | cover | treatment |
| increased | 267 | increased | 267 | increased | using |
| minus | 265 | minus | 265 | minus | cultivar |
| growth | 264 | growth | 264 | results | model |
| plant | 262 | plant | 263 | growing | increased |
| results | 260 | results | 260 | grain | this study |
| grain | 254 | grain | 253 | biomass | year |
| two | 248 | biomass | 248 | compacted | filed |
| biomass | 248 | two | 248 | two | high |