Responses of cotton growth,yield and economic value to alternate furrow irrigation in desert oasis of Northwest China
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DOI:10.7606/j.issn.1000-7601.2008.05.18
Key Words: alternate furrow irrigation  yield  economic value  percentage of pre-frost seed cotton yield
Author NameAffiliation
WANG Zhenchang Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A & F University, Yangling, Shaanxi 712100, China 
DU Taisheng The Center for Agricultural Water Research in China, Beijing 100038, China 
YANG Lei Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A & F University, Yangling, Shaanxi 712100, China 
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Abstract:
      A field experiment was carried out to study the effects of alternate furrow irrigation on cotton growth, yield and economic value of cotton planted in desert oasis located in the downstream of Shiyang River Basin, Gansu Province. The results showed that the height of cotton in the treatment of AFI were lower than that of CFI, while the rate of effective bolls in the treatment of AFI was higher than that of CFI. When the irrigation amount of cotton was set to be about 50% of local border irrigation, AFI showed higher seed cotton yield and higher percentages of seed cotton yield pre-frost than in the treatment of CFI. As a result, the economic values of AFI were also higher than that of CFI. It can be concluded that application of AFI on cotton in the oasis could save water as well as increase seed cotton yield and economic value.