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Effects of Different Irrigation Quota of Drip Irrigation on the Growth and Yield of Sunflower in Northern Xinjiang
Pages: 11-14
Year: Issue:  4
Journal: Water Saving Irrigation

Keyword:  drip irrigationirrigation quotasunfloweryield;
Abstract: Under the condition of same drip irrigation period,a field experiment is conducted to study the effects of different irrigation quota on the growth and yield of sunflower,and then to find the suitable irrigation schedule,and finally achieve the purpose of saving water and increasing yield.The results show that:different irrigation quota will affect crop growth and development of crops;but not the greater the amount of irrigation,the better the growth and development of plants;at the same time,the amount of irrigation water will affect the content of water in the crop;the greater the amount of irrigation,the higher the content of water in the crop.Through analyzing the relationship between plant,stem circumference,irrigation quantity and yield,it is found that the factors affecting the crop yield are the crop stem girth and body water content;the higher the two factors,the bigger the crop yield;But when the water content reaches a certain level,it will restrict the development of stem,resulting in the relative reduction in production.The final yield comparison test results show that irrigation quota of 450m3/hm2 gets the highest yield and the most significant economic benefits,without affecting crop growth.The study result will provide reasonable references for sunflower water-saving irrigation technology under the condition of drip irrigation in northern Xinjiang region.
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