The drought problems are important factors that cause damage to rice production. Impact in the area of rice fields Northeast and North, because it is a large source of the country's rice planting Thailand because the climate unstable. Occur frequently, and had significant nudity in every year. The land development department, which has collected statistics on agricultural drought occurs in each year, the drought area are found frequently, or almost 60 million acres of dry again and dry again, it means that the area the area is agricultural and is an arid area, occurred as the tuning?Aboi times damage crops is a wide area (reference data from the Meteorological Department, the Department of irrigation and land development department, 2555 (2012)) and because of the country's 75 percent in Thailand, agriculture is agriculture relies on rain water, which is based on a study of living conditions in the drought-hit country for hundreds of years, Tai.(Buckley et al., 2001) found that drought affected areas are extremely especially agriculture which rely on rain water, which is vital to the growth and yield of rice. If dehydration in early rice saplings and trees, it is a critical point to make productivity decreased in both quantity and quality aspects (1994; p. Dubey; RA ranks, 2539 (1996); The document on the subject, but will affect 2554 (2011)) on growth and yield of rice, much will depend on the level of violence. The length of the lack of water and rice growth period affected (Gupta and. O'Toole,1986)
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