Swift development that in the wake of our country the greens facilities were growed , Particularly save energy sunbeam greenhouse , Greatly promoteing the nationwide , the greens give birth to , Yet thanks to high temperature Gao Shi inner place the sunbeam greenhouse、 Illumination defect 、Ventilation is harmfully、 Earth even actes as and so on results in greens much kinds of plant diseases and insect pests seriously to happen 。 Muck farmer is for the sake of the prevention and cure plant diseases and insect pests , Disuse farm chemical、 The problem of chemical fertilizer is grave gradually , The poisonous substance in the farm chemical amount remaiing and the earth that creates in the greens produces gos beyond the country stipulation criterion enormously , There be happenning when resuling in the greens to be posioned the event 。 Hence , The public hazard greens is not there is not in the manufacture are the urgently necessaries of wide consumer , Is that science and technology worker hurries to wait the problem which resolved。 Cuing down the sunbeam greenhouse greens perniciously remains the matter technical research , Is fully indispensable 。This dissertation is living thoroughly to be lookd into the eastern area sunbeam greenhouse greens of Gansu Province to remain on the matter base , By means of the investigation sunbeam greenhouse pollution source , Uniting present situation quality being aimed at fibaric the buildding up degradution remains the matter technique eperiment、 The poisonous farm chemical screening test is leted drop to the high efficiency , Use farm chemical、 The nitrate is remain the rapid survey means, Matter remain the greens、 The multiple itemss such as earth nitrate examination and so on are researcied, Acquire the below result。1、The eastern area greens of Gansu Province are remain the reason that matter high .(1)Excessively employ the farm chemical , Add in the way of the medicine number of times;(2)The chemical fertilizer causes the amount to be used great unduly , Cause nitrate content to overtop , The greens produce qualitys drop;2> That the degradution sunbeam greenhouse is pernicious remains matter valid method and the step(DRightful use farm chemical : The far on in time pestilence of early pestilence of the tomato that the farm chemical is leted drop poisonously to high efficiency in order to select is most -. The planet is slaughtered to the epidemic disease ^ The sulphur suspension dose ^ The high osmosis Bi worm quinoline awaits 19 kinds optimum 0(2)Gaiing executes organic fertilizer , Dispensation applys fertilizer , May cut down greens produce nitrous acid reaches earth nitrate content in the salt;(3)Establishing to adjust pernicious remains valid examination administration mechanism of matter oThe above-mentioned eperiment of technique step by means of three is demonstrated , The grand total is spreadd 120hm2 , Moreover to pernicious remaiing matter of produce follows the tracks of the examination , Apply the drug prevention and cure plant diseases and insect pests chooseed , Pernicious remaiing matter not superstandard rate equally is living over 90% .