The Composition and Use of Fertilizers; Science Applied to Feeding Plants

The Composition and Use of Fertilizers; Science Applied to Feeding Plants

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...will be gained from an experimental study of one s soils through the behavior of the crops. 3. In WHAT Forms rs rr BEST TO BUY PLANT.Foon? We have previously seen that we can obtain nitrogen in several different forms, such as nitrate of soda, sulphate of ammonia, dried blood, tankage, fish.scrap, etc. Similarly we find in the market phosphoric acid obtained from several different sources, and we also find several difierent potash compounds. When we come to use fertilizing materials as a source of plant.food, we must decide which specific forms we shall apply. To illustrate, in applying some form of nitrogen, shall we use nitrate of soda, or sulphate of ammonia, or dried blood or fish.scrap? Shall we use as our source of phosphoric acid bone.meal, dissolved bone, acid phosphate, dissolved bone.black or Thomas slag? Shall we apply muriate of potash, or sulphate of potash or carbonate of potash? What principles are there to guide us in making the best choice? In deciding what form of material to use for plant.food, we should be guided by (1) The availability of the plant-food, (2) The preference, if any, shown by different plants, and (3) The comparative economy possible in purchasing difierent materials. Availability of Different Forms of Plant-F00d.--As a rule, commercial fertilizers are used for the purpose of increasing the single seas0n s crop to which they are applied. Most farmers plan to give to each succeeding crop by itself the planbfood it needs, and to avoid supplying any one crop with more material than it can use to best advantage. This is especially true of those who do not own the farms which they work and who plan each years work by itself without reference to the future. Under such circumstances a farmer desires...show more

Product details

  • Paperback | 42 pages
  • 189 x 246 x 2mm | 95g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236633393
  • 9781236633392