Experimental Study On Safety Application Technology Of Irrigation With Mine Water On Winter Wheat

Mine water is a kind of special water resources. In a serious shortage of agricultural irrigation water situation, to realize non conventional water resources application in agriculture, open up a new way for agricultural water. However, yield and quality of the crop after irrigation with mine water, and the effects on soil of crop planting is a widespread concern, is also the farmer’s attention. The study on winter wheat as the research object, in different treatment of mine water(mine water, mine water and the water on 1:1 ratio mixed irrigation, mine water and the water alternate irrigation, clean water irrigation) for irrigation water, by pot experiment, field experiment, studied the mine water irrigation on winter wheat growth, affect the yield and quality and soil environment effect. The results showed that,Pure ore well water irrigation on winter wheat growth to some extent inhibitory effect. From the morphological indicators, plant height and leaf area of potted wheat in the early growth stages showed no significant difference, with the advance of mine water irrigation, in the later stage, plant high showed promote function. Mine water irrigation compared with fresh water irrigation increased 1%~3.4%, and mixed irrigation promotes the most obvious effect. Leaf area showed a certain degree of restraint, the leaf area of mine water irrigation water is the water treatment of leaf area 69.5%~81.9%. Overall, mine water irrigation on the plant height of wheat promote growth, but to promote the effect is not obvious, the leaf area growth inhibition, and the inhibition is obvious, but the mixed irrigation for winter wheat plant height promote maximum, minimum inhibitory effect for leaf area. From the results of physiological index, found in the measurement of the physiological characteristics of winter wheat, mine water irrigation of winter wheat flag leaf photosynthetic rate and transpiration rate and water irrigation treatment differences were. In photosynthesis, net light mine water irrigation treatments photosynthetic rate higher than the water irrigation, therefore the mine water irrigation on has not obviously promote the net photosynthesis of winter wheat photosynthetic rate; transpiration rate at the determination of mine water treatment, irrigation was significantly lower than that of water irrigation, therefore, EVAP of winter wheat irrigation treatment of mine water value remained at a relatively low level, there is a certain inhibition of transpiration rate of winter wheat.Mine water irrigation is conducive to improve the quality and yield of Winter Wheat in a certain extent. but with the appropriate irrigation system. Namely: winter wheat irrigation 5 times, should be based on the mine water and no pollution water 1:1 mixed irrigation or in the mine of different irrigation period water and no pollution of well water irrigation, respectively before seeding, tillering stage, jointing stage, heading stage, grain filling stage. In case of late drought, in the mature period can also be irrigation time. The irrigating water quota is 450m3/ha, and the irrigation norm is 2250m3/ha. The control of field test data analysis of two years, and the control output results water irrigation treatment, the first year of mixed irrigation by 2.6%, irrigation treatment and mine water irrigation treatments were cut 3.4%, 10.4%. Second years of mixed irrigation by 6.67%, irrigation treatment and mine water irrigation treatments were cut 1.1%, 11.2%. There was no significant difference in winter wheat grain soluble sugar content between the four treatments, but, in the wheat grain soluble sugar, crude protein, crude starch and reducing the content of VC were in the mine water irrigation as the minimum, the fresh water irrigation, mixed irrigation and round of crude protein, crude starch and reducing irrigation treatment of VC were significantly higher than that of mine water irrigation, irrigation and high salinity mine water can reduce the quality of Winter Wheat. In the four processing, the crude protein, crude starch and reducing VC with fresh water irrigation, mixed irrigation two as the highest. The results showed that, highly mineralized irrigation of the mine water can inhibit the growth of winter wheat, reduced winter wheat yield, reducing the quality of winter wheat, water concentration and mixed irrigation treatment was diluted in water, and a certain concentration of minerals and easy to the growth of crops, therefore, mixed irrigation treatment is higher than the yield of irrigation water, mixed irrigation will improve the quality of Winter Wheat. And the irrigation treatment of mine water in irrigation period of high salinity the mine water also affected the growth of crops, so the treatment of winter wheat yield and quality are affected.Through the influence of soil environment of the mine water after irrigation analysis shows that the risk of long-term use of irrigation pure high salinity mine water can cause soil salinization pollution, salt ions accumulate gradually in the soil, heavy metal ions also accumulate in the soil but by mine water and the water mixed soil after irrigation can to bring some nutrients available, raise the content of soil alkali solution nitrogen, available phosphorus, available potassium and other components of soil organic matter, but the improvement is not obvious, with a certain role to increase soil fertility, improve soil structure, and does not result in the heavy metal in soil accumulation rise high in the short term, will not cause the pollution of heavy metal. A variety of salt ions and determination of heavy metal ions in the distribution of different soil depth, the majority of ions in 40 ~ 100 cm soil layer increased obviously, higher relative content.A comprehensive analysis of the findings of the study show that mine water irrigation to a certain extent, inhibit the growth of winter wheat, winter wheat yield decreased to a certain extent, but with the appropriate irrigation system, the mine water has been diluted, after mixing, can promote the growth of winter wheat to a certain extent, increase the yield of winter wheat, can raise the content of soil alkali hydrolyzable nitrogen, available phosphorus, available potassium and other ingredients, promote microbial population growth and reproduction, to have certain effect to increase soil fertility, improve soil structure, soil heavy metals did not lead to increased accumulation in the short term, will not cause heavy metal pollution, but for a variety of salt ions and heavy metal ions accumulate phenomenon appears in the soil, long term for mine water irrigation can lead to soil salinization phenomena.