Dissertation > Excellent graduate degree dissertation topics show

Research on Irrigation Technology Elements of Wheat and Maize in Bed Planting and Furrow Irrigation

Author: ZhaoZuo
Tutor: WangJianZhong
School:
Course: Agricultural Soil and Water Engineering
Keywords: Integration ridge Soil infiltration Flow advance and subside Combination oftechnical elements Optimization and evaluation
CLC: S275.3
Type: Master's thesis
Year: 2013
Downloads: 20
Quote: 0
Read: Download Dissertation

Abstract


This study through a large number of field trials and theoretical analysis, optimized andevaluated the irrigation technology elements of wheat and maize in bed planting and furrowirrigation such as ridge width, groove width, groove depth and slope. Draw the followingpreliminary conclusions:(1) Collected a large number of experimental data, calculated the cumulative infiltrationof a combination of elements of different irrigation, after analysis shows: Potential gradientand infiltration area has significant impact on cumulative infiltration. Groove width andgroove depth changes cause changes in wetted perimeter, ridge width changes affect the waterpotential gradient, ridge width and groove width has a greater impact on cumulativeinfiltration, groove depth was less affected and slope only influent infiltration waterdistribution(2) Through the analysis of water infiltration after six hours of wetting front, concludedas follows: Groove width, ridge width and groove depth has a greater impact on the wettingfront, the slope is less affected, and the wetting front curve on the first part of ditch and thetail part of ditch are difference.(3) Through the combination of elements of different irrigation water movementexperimental observations and theoretical analysis, the results showed that: The slope has thegreatest impact, followed by the ridge width, groove width and groove depth.(4) Irrigation efficiency Ea and the irrigation uniformity Ed two indicators as irrigationquality standards, established the irrigation quality evaluation model, using MATLABsoftware to optimize the70cm and110cm ridge width under different furrow irrigationtechnology feature a combination of the quality of irrigation; then set orthogonal experimentfor the combination of elements of different irrigation techniques, range analysis results showthat: slope and ridge width have the greatest impact, as the main factors, the impact of thegroove width and groove depth is small, as a secondary factor. More reasonable combinationof technical elements: the ridge width is70cm, the groove width is40cm, groove depth is20cm and slope is1‰.

Related Dissertations

  1. Study of Static and Dynamic Collaborative Optimization on Container Ship Structure,U674.131
  2. Process Simulation and Optimization and Economic Evaluation of a 600MW O2/CO2 Power Plant,TM621.2
  3. Soil infiltration treatment of high concentration ammonia wastewater feasibility and process optimization studies,X703.1
  4. Optimization and Evaluation of Increase Production Measures in Shuguang Oilfield,TE357
  5. Research on Optimization Method of Urban Conventional Public Transit Line Network in Near Future,U491.17
  6. Liwan gas field in the South China Sea floating LNG Pretreatment Technology,TE644
  7. Research on Schemes of Shanghai Terminal Airspace Structure Adjustment,V355
  8. Soil percolation process running soil enzymatic activities,X703
  9. Study on the Residual Oil Distribution after Polymer Flooding and Feasibility of Secondary Polymer Driving,TE327
  10. Class-based radar jamming electromagnetic mechanism Resource Optimization Assignment Algorithm,TN974
  11. The Experimental Study of the Impact of Alpine Grassland Coverage Changes on the Surface Hydrological Cycle at Permafrost Zone of the Qinghai-Tibet Plateau,S812
  12. Experimental Research on Infiltration of Stong-Soil Medium and Grape’s Growth and Development Characteristics under Drip Irrigation in Arid Area,S663.1
  13. Study on Inventory Circle Time Optimizing and Performance Appraisal of Shipbuilding Supply Chain,F407.474
  14. Soil infiltration of sewage treatment process runs and Simulation,X703
  15. The Multi-Objective Optimal Design of the Y Rolling Mill,TG333.17
  16. Study on the Change System of Urban Public Passenger Transport,U12
  17. Research on the Method of Provincial Highway Network Planning in Western China,U412.1
  18. Fly Coal Ash Effect on Soil and Water Loss on Tillage Soil by Simulating Rainfall,S157
  19. The Research of QoS-Aware Multicast Routing Algorithm and Protocol,TP393.02
  20. The Implementation of Optical Thin Film Optimal Design,TN304.055
  21. The TPCW Performance Tuning Based on the ServerScope Testsuite,TP399

CLC: > Agricultural Sciences > Agricultural Engineering > Irrigation and water conservancy > Irrigation technology > Ground irrigation
© 2012 www.DissertationTopic.Net  Mobile