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Development of area of special corn advantage plans
From;    Author:Stand originally

One, develop the current situation
(one) fundamental condition
1. Economic place is prominent, grain raise is used via holding concurrently. Corn is in our country is the main grain crop that is next to paddy, sow area, crop to take food respectively all the year round 22% with 25% , grain, raise, classics is multi-purpose, in commissariat, feed, chemical industry, medicine, light industrial wait for an industry with classics trade, it is main product and raw material. In last few years, our country corn exports a quantity to occupy cereal to export the 65% above of the quantity.
2. Spatio-temporal widespread, advocate produce an area to be centered relatively. Our country is saved 31 times (city, area) Dou Youyu rice is cultivated, since northeast Campagna, via Campagna of sea of yellow the Huaihe River, form to southwest " Chinese corn is taken " . Specific can divide it is area of north spring corn, Huang Huai area of area of Hai Xiayu rice, southwest country corn, northwest irrigates area of area of corn area, southern and upland corn, Qinghai-Tibet Platean corn 6 produce a division greatly. Advocate produce an area to be " Chinese corn is taken " north paragraph the Huang Huai of area of north spring corn and middle area of Hai Xiayu rice, corn acreage takes the throughout the country 70% the left and right sides.
Area of north spring corn: Include Liaoning, Jilin, Heilongjiang, Inner Mongolia and Heibei north, manufacturing condition is most advantageous, soil is rich, natural resources of smooth, hot, water and bear period synchronous, can rival with American corn belt. 2001 corn acreage one hundred and twenty-five million and forty thousand mus, 34.2% what take the throughout the country; Crop 39.34 million tons, 35% what take the throughout the country, area and crop occupy countrywide first place.
Area of corn of summer of sea of yellow the Huaihe River: Include Beijing, Tianjin, Heibei, Shanxi, Shandong, Henan 6 provinces city, natural condition and agricultural infrastructure are better. 2001 corn acreage one hundred and seventeen million two hundred and sixty thousand mus, 32.3% what take the throughout the country; Crop 37.8 million tons, 34.8% what take the throughout the country.
3. Per unit area yield rises ceaselessly, always produce increase continuously. 2001 countrywide corn acreage 364 million mus, increase 62 million mus than 1979, year all grow 0.9% ; Mu produce 313 kilograms, raise 114 kilograms than 1979, year all grow 2.1% , but per unit area yield year the wave motion between border is big; Total output one hundred and forteen million and ninety thousand tons, increase 54.05 million tons than 1979, year all grow 3.0% .
4. Diversification of form of corn area produce and sale. From corn advocate produce area and advocate sell a division distributing look, can divide for: "Self-sufficient and superabundant " model, basically be northeast Campagna area, 35% what corn crop takes the throughout the country, 15% what consumption takes the throughout the country only, corn is many and odd, transfer to other localities measures the 3/4 that takes the throughout the country, form home " the carry austral boreal grain " and " north goes out " current situation. "Autarky " " model, basically be Campagna of sea of yellow the Huaihe River, 35% what corn crop takes the throughout the country, 30% what consumption takes the throughout the country, produce need fundamental balance. "Self-sufficient inadequacy " model, basically be catchment of the Yangtse River with south reach other area, 30% what corn crop takes the throughout the country, 55% what consumption takes the throughout the country, produce require separation big, need " the carry austral boreal grain " with entrance corn, form " southing " .
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