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A study of tillage mechanisms in relation to soil properties and crop growth : a thesis presented in partial fulfillment of the requirements for the degree of Master of Agricultural Science in Agricultural Mechanisation at Massey University

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Figure

TABLE L Soil l osses as a result of cul ti -::re. (from 1-!eyer end llie.nnering, 196:1 )
Table 5 shows yields of crops .reported o~,r Bs.kerrrans (lee ci-:).
TABLE 7 Fuel consumptio!:l during cultivation (from 3aron, 1974)
TABLE 10 Mean amount of Petrol (g) used by tractor alone/20m
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