任何一项农业技术的推广使用都属于综合性的运作。它的抉择要受农场和农民的影响,受技术的限制,受经济的和政策的制约。对于保护性耕作来说就更容易受到一些因素的影响。例如,土地所有权的问题就会影响到保护性耕作的实施。农场主比给别人经营农场的农民在是否采用保护性耕作上 Any extension of the use of agricultural technology is a comprehensive operation. Its choices are influenced by farms and peasants, limited by technology and by economic and policy constraints. For conservation tillage is more vulnerable to a number of factors. For example, the issue of land ownership can affect the implementation of conservation tillage. Farmers use protected tillage more than farmers who run farms on others