To: pocotrader who wrote (58001 ) 3/31/2008 2:51:55 AM From: E. Charters Respond to of 78419 Yes. Since 1895. Very dependent in Asia on fertilizer for production of rice. Rice prices have dropped this century because of increased yield due to fertilizer. They use 15-10-15. "Although rice production in Taiwan may not be as high as in the past, rice is still the most important crop, and the largest user of fertilizer. In 2000, rice growers spent an estimated US$64 million on fertilizers. This included 41,793 mt of nitrogen (N), 15,314 mt of P2O5 and 16, 462 mt of K2O (Lin 2001). Not only is rice the staple food in Taiwan, it also provides raw materials for food processing, and supports rural development, social stability, ecological conservation and the cultural heritage. Fertilizer represents only 7% of the total input costs for rice (Lin 2001). However, there are many indications that the use of N fertilizer could be reduced and rice yields increased at some sites through improved timing and management of nitrogen fertilizer. Maintaining an appropriate rice acreage and adopting proper rice nutrient management is the key to the sustainable development of the rice industry in Taiwan. Dai and Lin (1992) reported that in parts of central Taiwan, most rice farmers use split applications of nitrogen four times for each crop, and make two applications of P and K fertilizer. The average amounts of N, P2O5 and K2O applied were around 220, 60 and 110 kg/ha, respectively. In another county further north, the survey found a slightly lower application rate (180:60:110 kg/ha). In general, rice farmers' in Taiwan apply about 20% more fertilizer than the recommended rates. Reducing fertilizer applications will cut down on production costs. In addition, rice offers a unique opportunity for the development of site-specific management (SSMG) technologies, because it is cultivated over such a large area. Furthermore, rice production in Taiwan is highly mechanized."