Problem on Nuclear Theory of Cultivation Science of Crops

This paper considered that theory system explaining and demonstrating all of cultivation practice and alone having attribute of cultivation science of crops could not be formed for Cultivation Science of Crops of China. 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. 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 definition protruded internal essence and feature of this subject and its difference with near subjects. Expounded relative nucleus theories and concrete contents of improved cultivation science of crops depend on needs of development of ecological agriculture, practices of crop production and existing problems, compared them with present teaching material of agricultural college. Problem on development of cultivation science of crops was finally discussed.