. Elementary lessons in the physics of agriculture. Agricultural physics. [from old catalog]. 97 Number of Pounds of Water Required for One Pound of Dry Matter and the Number of Inches of Kain per Ton of Dry Matter. Water. Water. Lbs. Inches. Dent corn Flint corn 2. 14 Clover 4 03 Barley 3 43 Oats Peas Potatoes The results in this table include not only the water which passes through the plant, but also that which was euajjorated from the soil upon which the plants grew ana hence indicate the amount of water the crops reported were
. Elementary lessons in the physics of agriculture. Agricultural physics. [from old catalog]. 97 Number of Pounds of Water Required for One Pound of Dry Matter and the Number of Inches of Kain per Ton of Dry Matter. Water. Water. Lbs. Inches. Dent corn Flint corn 2. 14 Clover 4 03 Barley 3 43 Oats Peas Potatoes The results in this table include not only the water which passes through the plant, but also that which was euajjorated from the soil upon which the plants grew ana hence indicate the amount of water the crops reported were able to use. These amounts, both for Europe and this country, seem enormous, but there can be no question but that the quantity needed is very large and necessarily so because practically all of the dry matter of the plant requires to be in solution when in ti'ansit to the place where it is finally deposited as a part of the structure. 156. Position and Attitnde of the Water-TaMe.— The water-table is the surface of standing water in the soil. The distance the water-table lies below the surface exerts a marked influence upon the yield of crops per acre. If the water lies too close to the surface, drainage is re- quired to secure the best yields; when the water-table lies. i,ni:i::'::iiili':iinuiuiirjii:iii ',ii/mMifm/i/f/////j//wjwi/;///j////im^^^^ Fig. AU too low, none of that water is available for plant growth. Permanent ponds and lakes are continuations of the water-table above the surface of the ground, and their levels lie at varying distances below the level of the water in the ground, the water-table rising usually as the dis- tance from these bodies of water increases and as the ground rises, as shown in Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original King, F[ranklin] H[iram], 1848- [from
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Keywords: ., bookcentury1800, bookcontributorthe, bookdecade1890, bookyear1891
