Non-grain production (NGP) on cultivated land has become a common phenomenon due to the prosperity of the rural economy and the optimisation of the agricultural structure. However, the excessive use of cultivating land for NGP has threatened food production and the sustainable use of cultivated land. To halt this trend and to ensure food security, the authors of this paper applied a novel non-grain index to measure NGP, which could reflect multiple NGP activities; designated Hubei Province as its object of research; and revealed NGP’s spatio-temporal patterns of the past 30 years. We then assessed the characteristics of NGP based on spatial autocorrelation analysis, the Theil index, and geographically weighted regression. The results showed that the value of the non-grain index grew from 0.497 to 1.113 as NGP increased significantly in Hubei Province. The number of high-NGP counties increased, spatial agglomeration became obvious, and the eastern and western sides of Hubei Province witnessed an observable growth in NGP. As a result, the NGP in the eastern and western regions overtook production in the central region. Despite a series of historical subsidy policies and agricultural modernisation initiatives that promoted the planting of grain crops, the policy of “grain on valuable cultivated land” could be better implemented. We conclude by making some suggestions for reducing NGP and protecting cultivated land.

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Abstract. Because of the demand of economic and social development, the focus of current college students' learning is to cultivate the students' entrepreneurial competence which is an important way for the students to realize their self value and getting into the society. As an emerging subject, the application scope of computer is expanding in various social aspects. It is very important to strengthen the entrepreneurial practice ability of computer major students. Through the study of computer major teaching activities in our country, find the problems existing in computer major students' entrepreneurial practice ability, and carry on research and analysis of these problems to provide effective methods and measures for computer major students' entrepreneurial practice ability training in our country. Build a perfect, rational and scientific mechanism for computer science major students' entrepreneurial practice ability training.