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Results from a soil improvement and fertilizing test on fen land at Leteensuo
Clay and sand, used as soil improving agents, have increased the hay crops as well as the cereal crops. When the fertilization contained phosphates only, the increases in crop yield produced by the soil improvement were quite high. In this case clay developed a higher effect than sand. In connection...
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| 主要作者: | |
|---|---|
| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
Scientific Agricultural Society of Finland
1961-01-01
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| 叢編: | Agricultural and Food Science |
| 在線閱讀: | https://journal.fi/afs/article/view/71555 |
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