 | James John Howard Gregory - Fertilizers - 1885 - 144 pages
...the one of the three elements, nitrogen, potash, or phosphoric acid, of which the soil has the least, will always be the measure of the crop. A hundred...not a proportionate increase of the other elements. Says Professor Atwater, in his generalizations from over a hundred carefully studied experiments, "... | |
 | California. State Board of Horticulture - Fruit-culture - 1890
...than many manures and many so called " commercial fertilizers " a hundred times as bulky. Fertilizer;' in some form can be made to last like barnyard manure,...most and best manure that is practicable upon the orchard, and piece out with such commercial fertilizers as experiments and experience prove profitable.... | |
 | California. Department of Agriculture - Agriculture - 1890 - 566 pages
...of potash, 44. pounds of soda, 44 pounds of sulphuric acid, 224. pounds of phosphoric acid, and 44 pounds of chlorine. By the composition given it will...most and best manure that is practicable upon the orchard, and piece out with such commercial fertilizers as experiments and experience prove profitable.... | |
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Fertilizer;' in some form can be made to last like barnyard manure, and feed several successive crops with a single application. For instance, in ashes and bone we have all the elements for a complete manure, when all that is required is to apply an extra... 