Wisconsin State Horticultural Society / Annual report of the Wisconsin State Horticultural Society for the year 1910
Volume XL, Part II (1910)
Taylor, O. M.
A comparison of tillage and sod mulch in an apple orchard, pp. 117-125 PDF (1.9 MB)
WISCONSIN STATE HORTICULTURAL SOCIETY. The average gain in diameter of trunk for the trees in sod was 1.1 inches; for the trees under tillage, 2.1 inches. The average annual growth of twigs of the trees in sod was 3.4 inches; of the tilled trees 6.7 inches. The total weight of 240 twigs from sod trees was 7.2 lbs.; from trees under tillage, 21.3 lbs. The leaves on the sod trees were yellowish-on the tilled trees a dark, rich green. FINANCIAL STATEMENT. The average annual cost per acre, not including harvesting, was $17.92 for sod, and $24.47 for tillage-a difference of $6.55 in favor of sod. The average net income per acre from sod was $71.52, and from tillage $110.43, thus giving an increase due to tillage of 54 percent. CAUSES OF DIFFERENCE. Moisture. The soil to the depth of one foot showed as the average of 120 moisture determinations 156.24 tons water for sod; 235.98 tons water for tillage-an increase of nearly 80 tons in favor of tillage. Temperature. At a depth of 12 inches the average tempera- ture for sod was 65°; for tillage 67°-difference of two degrees in favor of the soil under cultivation. Humus. The amount of humus in the soil to a depth of six inches was 19.98 tons per acre for the sod plat and 21.78 tons for the tillage plat-an increase of 1.8 tons in the soil under cultivation. The facts presented include the essential features of what happened in an apple orchard under a tillage system and under a system of sod mulch. The soil, the trees and the fruit have each in turn told their story, and the evidence is. before you. Yel it must be kept in mind that the results do not prove that tillage under all conditions is the only proper method of procedure. Every orchard has its special problems and every apple grower has a problem of his own. Any method to succeed must be adapted to its environment. The relations to the plant of humus, of heat, of food, and of moisture are fundamental. It would therefore appear that the problem of the apple orchard 120
Based on date of publication, this material is presumed to be in the public domain.| For information on re-use, see http://digital.library.wisc.edu/1711.dl/Copyright