Encara no tenim significats per a "enrich the soil".
1If so, how does the rotation actually enrich the soil in nitrogen?
2Either by plowing or forking, deepen as well as enrich the soil.
3Birds next come and rest on the island, and further enrich the soil.
4They put nitrogen back in the soil, so they enrich the soil...
5The rotation of crops does not enrich the soil, does not even maintain the fertility of the soil.
6So sense and imagination, passion and reason, may enrich the soil that breeds them and cover it with a maze of flowers.
7Hence much domestic waste, which would elsewhere be employed to enrich the soil, is thrown out into vacant places near the town.
8All such materials are saved and used in the most advantageous ways to enrich the soil or to nourish the plants being grown.
9Farmers did not know how to enrich the soil by the use of fertilizers or how to provide for a proper rotation of crops.
10Next to enriching the soil, the most important step is to deepen it.
11The vegetable material thus ploughed in lies over a season and enriches the soil.
12There was a time when it was thought that the growth of turnips enriched the soil.
13Thus it enriches the soil, or cools the air, or reflects back to the earth its radiated heat.
14In preparing and enriching the soil, and especially in subsequent cultivation, concentrated fertilizers are very useful and often essential.
15The guano that enriched the soil made every kind of vegetation thrive with an almost marvellous rapidity and luxuriance.
16To meet this emergency and loss the farmer has another method of enriching the soil, again depending upon bacteria.
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