Vol. 2. Edited by R. L. Metcalfe. Pp. vii + 426. (New York: Interscience Publishers, Inc.; London: Interscience Publishers, Ltd., 1958.) 94s. Recognition of Diseases ...
Figure 1: Comparison of yield in no-till versus conventional tillage systems in relation to the other two principles of conservation agriculture. Figure 2: Comparison of rainfed crop yield in no-till ...
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