全国种粮养牛发展分析

1951—2010年全国的粮食总产量是波动性增长。波动原因是粮食种植面积的波动，增长原因是粮食种植技术的进步。2010年全国粮食供给已是“北粮南运”。东北地区是全国的“粮仓”，黄淮海地区次之，长江中下游地区人均粮食产量只略高于全国平均水平。全国秸秆养牛已由畜力生产转为肉、奶生产，但人均水平较低。全国种粮养牛今后发展的目标应是人均粮食产量适度、粮食产量结构合理和秸秆养牛规模适量，其实现途径是科学化种粮养牛、综合开发种粮养牛乡村以及保证开发方针政策的正确。 

Development Analysis of National Food Growing and Cattle Ranching

The total output of national grain was volatility growth from 1951 to 2010,the volatility was caused by the fluctuation of grain planting,and the growth results from technology progress of grain grown.In 2010,the national food supply has been "the carry austral boreal grain".Northeast region is the largest granary,followed by Huanghuai sea area,while grain yield per capita of the Yangtze River is only slightly higher than the national average.Cattle feeding based on crop residues has already been transferred from animal power production to beef and milk production though the per capita level is still very low.As for the future development of national food growing and cattle ranching,the goal is to achieve moderate yield of grain yield per capita,reasonable structure of grain production and right amount of cattle feeding based on crop residues,the realization way is scientific development of food growing and cattle ranching,comprehensive development of food growing and cattle ranching village,as well as correct principles and policies of development program.