. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 1758 The Cornell Reading-Courses OxLfqen OxLjqen ^^arbon dioxide secured by the aid of certain soil bacteria and leguminous crops, and be- cause of its many beneficial physical effects on the soil. Its increase is accomplished, according to circumstances, by means of large crop residues to which rotation and inoculation contribute, by the use of sto
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 1758 The Cornell Reading-Courses OxLfqen OxLjqen ^^arbon dioxide secured by the aid of certain soil bacteria and leguminous crops, and be- cause of its many beneficial physical effects on the soil. Its increase is accomplished, according to circumstances, by means of large crop residues to which rotation and inoculation contribute, by the use of stock manure, and by the 7he afmosphere utilization of green- manure crops. Tillage Tillage, deep and thorough, stirs and fines the soil, incor- porates manures and fertilizers that may be added, and contributes to general ventilation and sanitation. Various implements may be employed, according to the needs of the soil. Fertilizers Carb Root h<iii;s-' ^^^?--. Tubercles The soil atmosphere soil Water The chemical nature of the average soil is such that, by the proper adjustment of the conditions of moisture, lime, organic Diagram of a leguminous plant {clover), showing matter, and tillage, the largest possible quantity o f plant- food will be made available and the soil will be maintained in a sanitar}^ condition. Nitrogen should be suppHed through the organic matter. On many soils devoted to the deep-rooted, slow-growing crops, such as fruit, commercial fertilizers may not be needed. In other cases their use should be reduced to such quantities and forms as will give the greatest economic results. The treatments preceding the application of a fertilizer should all contribute to a rise in its efficiency. ^19- 3- . its parts m relation to the soil and the atmosphere, and something of the circulation of the plant-food elements. From the atmosphere and water the plant derives carbon, hydrogen, and oxygen. From the soil it derives potassium, phosphorus, sulfur, iron, calcium, and m
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