A Critics on Nuclear Theory of Cultivation Science of Crops

The purpose of this work was to explain the study materials and the nuclear theory system of crop cultivation science on the basis of the current situation and crop cultivation science's problems, practices in crop production, and some theoretical perspectives. In this work, it was argued that a theoretical system for Chinese agricultural cultivation science could not be developed without also showing and describing all of the cultivation practices. Due to influence of scientific concept of western scholars, theory of this applying subject only stopped on level of point obtaining from contacts in general terms among things, lacked highly summarizing and abstraction, but contents of this subject were on basis of big agriculture conception, ecological agriculture, it embodied idea that recognizing crop production only from long-term interests, higher layer, bigger range, including handing well relationship both among all of ecological systems and between planting industry and animal husbandry, could well resolve problem of food. Cultivation science of crops had itself special study field, mainly were relationship between community and individual, contradiction among factors of community yield and its movement, technology regularity of high- yielding. Putting forward new concept of Cultivation Science of Crops, it was science researching contradiction movement among yield factors of crop (high-yielding) community and regularity of regulation and control technique. This concept emphasized the subject's intrinsic characteristics and features as well as its differences from nearby topics. Comparing them to the current teaching materials used in agricultural colleges, we developed relative nucleus theories and specific contents of better crop cultivation science based on demands of the growth of ecological agriculture, practices of crop production, and existing difficulties. Finally, the issue of the advancement of agricultural cultivation science was raised.