| It is the most important global underproduction factor at the agriculture that Inp is arid , because our country lies in the world-famous monsoon district of east Asia. Belong to remarkable continental monsoon climate relying mainly on drought drought suffer from waterlogging calamity it has to be frequent to take place number of times, continuously chronic, range wide, endanger large our country lower region of water resource extremely uneven to distribute laws naturally,, The whole country 47% land in arid with half arid area, this kind water resource of the area account for 7% the whole country only. Our country agriculture present and lack 30 billion m3 with water every year. Under the mechanism of WTO, the agricultural development of our country faces enormous opportunity and challenge, " it is one kind among them , simple and practical, as its name suggests to drip irrigation under the membrane, It modern cover plastic film culture and dripping irrigation the mode of production of agricultural irrigation that technology combine together new-type, Not only the pouring water amount reduces by a large margin , but also the quality of the vegetables, output improves, output your content! Exam accord with of our country river the Huaihe River crop cultivation high-quality principle and request of high-efficient development, vegetables of area, not merely, Can offer a train of thought for river the Iluaihe River agricultural structural adjustment, district of watershed.And the Huaihe River popularization of area make some theory and practice discussion of in river for water- saving culture.Jiang-Huai Watershed Region, because of location and topography special, long-term arid is short of water, cause agriculture, get great restriction especially vegetable planting field, not only affect agricultural industrial structural adjustment, also peasant income is also the historic good fortune of WTO deep by influence, face join , river Huai the vegetable estate of region should develop as soon as possible, vegetable, is people live in essential , contain rich nutrition source food, drip under membrane fill is a kind of suitable extending efficiency of self region the measure of water saving.This experiment in 2002 . 2003 in the Anhui agricultural university orchard of Hefei site and Anhui province agricultural scientific research institute , frequently green town agricultural demonstration garden 3 plastic big sheds go on . test have selected tomato, garlic and cucumber is for examination material, fall with big field and basin way, have installed 3 . 4 handlings, is respectively: T1 drip under membrane fill handling, T 2 cover drop for having no fill handling, T 3 cover handling for ground, CK compare handling for tradition, every handling repeat three times, set different irrigation way according to the growth stage of difference and different vegetable crop, pass for every index of soil moisture condition and crop growth condition survey , study with agricultural meteorology , soil science and vegetable culture study , agricultural mathematical statistics and application mathematics etc. subject knowledge study and analyse membrane drip fill grow up and increase revenue for vegetable mechanism, have compared different handling for the influence of soil moisturc,temperature and output, last with raise economic benefits is goal, select conform with river Huai the planting irrigation pattern of watershed region, at the same time also save for me unfold the agriculture of water saving on the contrary offer the theory of science basis, major result summary is as follows;1.The test result of different vegetable show : in river Huai drip under watershed region vegetable membrane fill culture pattern with have no cover drop fill and cover land membrane irrigation and traditional irrigation compare with , soil moisture and the factor of temperature is better than 3 rear , the 1 T reasons of tomato is 33% and 12% respectively than T 3 and the CK rate of water saving, garlic is 36% and 24%.2.The irrigation... |
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