| 发明名称 |
METHOD OF GROWING PLANTS WITHOUT SOIL |
| 摘要 |
For the control of the pH value of a nutrient solution for growing plants the pH value is increased by supplying nitrate nitrogen and is decreased by supplying ammonium nitrogen to the nutrient solution. |
| 申请公布号 |
GB1558581(A) |
申请公布日期 |
1980.01.03 |
| 申请号 |
GB19760038485 |
申请日期 |
1976.09.16 |
| 申请人 |
NISSMO J A;SJOESTEDT E H S |
发明人 |
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| 分类号 |
A01G31/00;C05C1/00 |
主分类号 |
A01G31/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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