Analysis on satisfied degree and advantage degree of agricultural crop straw feed utilization in China

Abstract: As an agricultural country, China produces a great deal of agricultural straw every year. Agricultural crop straw feed utilization is one of the agricultural crop straw comprehensive utilization ways, which guarantees the development of save-grain animal husbandry and provides enough roughage for ruminant, such as cow, beef cattle and mutton sheep. So it is important to research on development status of agricultural crop straw feed utilization in China. In this paper, thirty-one provinces were selected as research objects, firstly, estimation of amount and demand of agricultural crop straw feed utilization of these provinces. The amount of agricultural straw feed utilization was estimated by using the six crop yield, that are corn, wheat, rice, bean, tuber and peanut, multiplied the ratio of straw to grain and productivity of collectable and usable straw. Then, adding the amount of crop straw feed together and multiplied the ratio of China's agricultural crop straw feed utilization. The crop yield data came from China Statistical Yearbook 2009－2014. The demand of agricultural crop straw feed was estimated by using the amount of cow, beef cattle and mutton sheep multiplied feeding structure, feeding amount of agricultural crop straw feed and feeding period. Then, adding the demand of agricultural straw feed together. The ruminant amount data came from China Rural Statistical Yearbook 2009－2014, China Animal Industry Yearbook 2009－2013 and China Animal Husbandry and Veterinary Yearbook 2014. So divided the amount of agricultural crop straw feed utilization by the demand of agricultural crop straw feed, it got the satisfied degree of agricultural crop straw feed. The advantage degree meant that the amount and demand of agricultural crop straw feed of one province had an advantage, compared with others. The results showed that: 1) From 2008 to 2013, amount and demand of agricultural crop straw feed utilization of China showed an increasing trend. In 2013, the amount of agricultural crop straw feed utilization was 168.95 million tons and the demand of agricultural crop straw feed was 125.68 million tons. The Northeast China, Huang-Huai-Hai Region, Middle-Lower Yangtze Region, Inner Mongolia and Sichuan were the main area of amount of agricultural crop straw feed utilization. The Northwest China, Huang-Huai-Hai Region, Southwest China, Inner Mongolia, Sichuan, Tibet, Gansu and Xinjiang were the main area of demand of agricultural crop straw feed. 2) From 2008 to 2013, the satisfied degree of agricultural crop straw feed of China also showed an increasing trend. In 2013, the satisfied degree of agricultural crop straw feed of China was 134.43%, which meant the agricultural crop straw feed utilization met the demand of ruminant. The East China mainly met the demand, such as Jiangsu, Zhejiang, Anhui, Shanghai and Heilongjiang. But the West China was not, such as Ningxia, Xinjiang, Gansu, Qinghai and Tibet. And the advantage degree of agricultural crop straw feed utilization of Huang-Huai-Hai Region, the Northeast China, Inner Mongolia and Sichuan were higher than others. 3) The Huang-Huai-Hai Region, the Northeast China, Inner Mongolia and Sichuan were the core region of save-grain animal husbandry. Finally, the amount, demand, satisfied degree and advantage degree of agricultural crop straw feed provided the basic information about the development status of agricultural crop straw feed utilization in the thirty-one provinces. What's more, it contributed to the development of save-grain animal husbandry in China.