Manuring for Higher Crop Production
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For each per cent, of soluble phosphate, 2s. For each per cent, of insoluble phosphate, and 10s. For each per cent, of potash 1 in the fertiliser. Thus, if a manure is guaranteed to contain 4 per cent, nitrogen, 20 per cent, phosphate, half soluble and half insoluble, and 2 per cent, potash, a fair price at the time of writing would be: s. D.
Nitrogen 4 x 20s 400 Phosphates 10 at 3s. + 10 at 2s. ... 2 10 Potash 2 at 10s 100 7 10 Anything in excess of this price would be paid for the con- venien...ce of having the mixture made up. These figures represent top grade materials, but there is nothing to compel the maker to use such good stuff, and nothing to show that he has done so, except the crop results : it would be quite easy to use a mixture of shoddy at about 8s. And sulphate of ammonia at about 17s. Per unit of nitrogen, making an average of 12s. Per unit. It is to avoid trouble of this sort that farmers have often been recom- mended to make their own mixtures instead of buying them.
1 War price only; in peace time it was 45.
What to read after Manuring for Higher Crop Production?
You can find similar books in the "Read Also" column, or choose other free books by Edward J Edward John Russell to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
For each per cent, of soluble phosphate, 2s. For each per cent, of insoluble phosphate, and 10s. For each per cent, of potash 1 in the fertiliser. Thus, if a manure is guaranteed to contain 4 per cent, nitrogen, 20 per cent, phosphate, half soluble and half insoluble, and 2 per cent, potash, a fair price at the time of writing would be: s. D.
Nitrogen 4 x 20s 400 Phosphates 10 at 3s. + 10 at 2s. ... 2 10 Potash 2 at 10s 100 7 10 Anything in excess of this price would be paid for the con- venien...ce of having the mixture made up. These figures represent top grade materials, but there is nothing to compel the maker to use such good stuff, and nothing to show that he has done so, except the crop results : it would be quite easy to use a mixture of shoddy at about 8s. And sulphate of ammonia at about 17s. Per unit of nitrogen, making an average of 12s. Per unit. It is to avoid trouble of this sort that farmers have often been recom- mended to make their own mixtures instead of buying them.
1 War price only; in peace time it was 45.
What to read after Manuring for Higher Crop Production?
You can find similar books in the "Read Also" column, or choose other free books by Edward J Edward John Russell to read onlineMoreLess
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