The Influence Of Gas Transmission Pipeline In Service On Soil Characters And Wheat Yield

Aiming at the abnormal phenomenon above wheat pipe,thia research is conducted in Henan Huaiyang compressor station and Shanxi Linfen compressor station and various indexes are monitored in the field,such as the soil nutrition conditions,soil pH,organic matter,available N,P and K,total nitrogen,total phosphorus,total potassium,and wheat agronomic traits and yield traits,including plant height,spike length,grains per ear,ear weight,grain weight,etc.At the same time,along with problems in wheat growth process,this paper is devoted to explore some effective ways to solve the problem.Foliar methods is applied in wheat in late growth stage(heading and jointing),which is located above the top of Shanxi Linfen pipeline compressor station,and potassium dihydrogen phosphate and urea are used as fertilizer in Shanxi Linfen station to carry out foliar test.The following results are showed below:1.Gas pipeline has some certain effects on wheat growth,and the two regions show some differences.Wheat abnormalities Huaiyang in Henan province are mainly higher wheat plants,but lower yield above the pipe.Compared with wheat,which are located at the both sides of Pipe,average height of wheat above the pipe is higher about 5~10cm,the average yield is lower about 21.14%.Wheat above the pipeline in Shanxi Linfen show higher plant,earlier growth stage,earlier maturity atage,and lower yield.Compared with wheat,which are located at the both sides of pipe,average height of wheat above the pipe is higher about 5~12cm,the average yield is lower about 15%.And from the beginning of heading stage,the growth stage of wheat on both sides of the pipe centerline is significantly earlier than that on both sides of the pipe.The range of the influence of the gas pipeline on wheat is about 2m on the lateral side of pipe.2.Henan Huaiyang compressor stations along the various monitoring points and the vertical centerline of the pipe to the different soil fertility status at 5m pipeline performance,but its regularity was not obvious,for example,the analysis results show some pipeline monitoring points centerline of soil organic matter content less than 5m perpendicular to the pipe at the monitoring point soil organic matter content but higher than some pipe centerline perpendicular to the pipe at 5m.And by soil fertility and wheat yield correlation analysis found that a single change in soil fertility factors had no significant effect on wheat yield,indicating that soil nutrient status is not a major factor in wheat yield.3.The average soil moisture content in Henan Huaiyang compressor station from upstream about 8km to downstream around 32 km is carried out at 5~10cm below the soil,and six sites show 11.80%,11.80%,11.77%,11.93%,11.09% and 11.67%.The moisture content of each monitoring site range from 11% to 12%,there is no significant difference in oil moisture content on the soil surface,indicating that the soil surface moisture content is not the main factor of reduced wheat.4.In heading stage,0.2% potassium dihydrogen phosphate,0.2% potassium dihydrogen phosphate and 1% urea are mixed together to spray on wheat,and it has changed the situation of reducing wheat production;at heading and filling stage,if wheat were sprayed with 0.2%potassium dihydrogen phosphate,it definitely improved wheat yield.We concluded that through applying an appropriate amount of foliar,such as 0.2% potassium dihydrogen phosphate and 1% urea in the heading and filling stage to supplement the nutrients required for the growth of wheat in late growth stage,so it is very effective to improve the yield of wheat.Above all,the impact of gas pipeline on wheat mainly indicates that wheat in the top of the pipe are higher plants,but lower yield.Soil condition in each monitored site in Henan Huaiyang compressor stations do not show any regularity.We analysed that soil condition is not the main factor to influence the wheat production,and the result of soil surface moisture content in each site are consistent with each other,and there is no obvious influence on wheat yield.What’s more,if foliar supplements are applied to wheat at heading and jointing stage,it is effective to alleviate the lower yield situation.