Font Size: a A A

Study On Strip Intercropping Crop Water Requirements And Unsufficient Irrigation Schedule District

Posted on:2011-11-08Degree:MasterType:Thesis
Country:ChinaCandidate:S L HuFull Text:PDF
GTID:2143360305975145Subject:Water Resources and Hydropower Engineering
Abstract/Summary:PDF Full Text Request
With the development of industry and agriculture,the water resources will be very shortage in the Inner Mongolia Hetao irrigation district. With the development of industries continued, Water use in agriculture has reduced, how to carry out irrigation water constantly reduced cases to the increased agricultural output, is Hetao agricultural development is the main constraint element. the purpose of the utility model is to point against the above problems, In inner mongolia HeTao addition to the solid experimental station planted crop water requirement conditions and irrigation system of research, through the following summary conclusions from research。1.Strip Intercropping cultivation conditions of the calculation is in a single crop of the basis of the two crops, of the weighted average vlue, Fully consider the two crops growing proportion of our own conditions and the size of, The two crops of our crops water requirement two largest value: First appeared on the two crops grow in the mid time, Appear to grow crops for space, nutrients of water, The second time in the first crops maturity stage and second crops grow the best use of water,light,heat period。In other time crops coefficient between the two crops of change, it is to produce a crop of the main reason rop water requirement。2. Strip Intercropping cultivation conditions water requirement than two single crop water requirement, less than two single crop water requirement。This is because the two crops grow crops grow high, with different, resulting in the field of environment, the wind speed and temperatures and the external conditions change,In the circumstances fully taken into account the role of water stress, the crops in water stress of a crop water requirement, but the crop yields and had no obvious change.3.Strip Intercropping crop grown for the production of the environment should also fully consider the changes caused the changes, including the use of production and production index reflects the beta j and beta could well reflects the changes in production,Through the concrete conditions that grow wheat and corn production have increase by the output of a comprehensive reflection of the conditions found luffa cylindrica crop production are improving. Overall。4.Strip Intercropping crop cultivation conditions for irrigation system of evaluation analysis found that the existing irrigation system have serious deficiencies, but from the evaluation process, plant to grow solid than one of the quota for irrigation, crops water requirement, but the rate of decline, irrigation water leakage in deep water, irrigation with high efficiency. With the above conclusions that three-dimensional crop cultivation, the quota, but to increase crop production to light and heat and water use and raise productivity.land。5.In the present a full and adequate water to irrigate and water compared to reduce the quota to fill some water, reduce the crops water requirement,, but not proper to reduce the quota for irrigation will result in serious decline, will be irrigated meaning than In the full implementation of irrigation must definitely not fully understand and irrigation, the grouted mortar "water", identify key water and noncritical water was guaranteed by water-saving irrigation system is based. in addition to grow solid HeTao the conditions of good irrigated to promote。6.This paper used for cultivation ISAREG software is the full and a good crop irrigation system in the optimization process, give full consideration to pour water, and pour water, the results show that the optimization of irrigation and water to irrigate the full complement significantly reduced, every time i fill some water to irrigate more evenly fixed, and the full irrigation at not more than three days, crop irrigation rate.
Keywords/Search Tags:StripIntercropping, Cropcoefficient, Crop water requirement, Deficient irrigation, Irrigation schedule, ISAREG Model
PDF Full Text Request
Related items