Study Of The Best Solution Scheme About Cucumber, Tomato Plug Seedling Through Tidal Irrigation

This experiment was conducted in the intelligent greenhouse, using cultivar cucumber "Beijing 403" and tomato “Ying fen 8 ” as test material, choosing peat and vermiculite mixed matrix, The aim of this experiment is to determine cucumber and tomato nutrition and best served the needs rule at the nursery tidal irrigation methods, in order to foster high-quality different ages cucumber and tomato plug seedlings, fertilizer utilization and high fertilizer management. the use of binary quadratic orthogonal rotation combination design, Vegetable Research Center, Beijing Academy of Agriculture Greenhouse studied tidal irrigation Plug nursery nutrition supply to maintain influence the way time and space for different Ages cucumber, tomato plug seedlings quality, in Case seedlings grow to 5 leaves a heart, growth index, physiological index and water use efficiency from seedlings and other angle of investigation and analysis, simulated the regression equations for the fluid to maintain the index by time and space effects, other analytical methods with the same period of seedling age. Integrated comprehensive evaluation of all indicators, finally We obtain the best seedlings plug seedlings nutrition supply program. The results are as follows:1.Cucumber, Tomato from emergence to 5 leaf stage, seedling growth morphology, physiology and plant water use efficiency are subject to the nutrient solution supply duration and interval of two factors together and influence each other, the time is too short for liquid seedling wilting water, the longer will adversely affect seedling growth; the interval there was an interaction with the liquid supply time, in an appropriate period of time for the seedlings have a facilitating role.2. There is regression equation that effects of cucumber strong seedling index(y) on maintaining time(x1) and interval time(x2): y= 0.102 + 0.004 x1 – 0.004x2 + 0.003x1x2 – 0.005x12 – 0.007x22.3. There is regression equation that effects of cucumber chlorophyll content(y) on maintaining time(x1) and interval time(x2): y = 2.468 – 0.041x1 – 0.007x2 – 0.007x1x2 – 0.003x12 – 0.074x22;Root activity: y = 0.32 + 0.036x1 – 0.016x2 – 0.002x1x2 – 0.097x12 – 0.121x22.4. There is regression equation that effects of cucumber plant water use efficiency(y) on maintaining time(x1) and interval time(x2): y = 3.66 + 0.089x1 + 0.227x2 – 0.035x1x2 – 0.12x12 – 0.352x22.5. At cucumber seedling stage, We suggest that irrigation maintain time keep 13 to 18 minutes, and interval time keep 319 to 401 minutes. Higher quality cucumber seedlings and better nutrition use efficiency.6. There is regression equation that effects of tomato strong seedling index(y) on maintaining time(x1) and interval time(x2): y= 0.026 + 0.001x1 – 0.003x2 + 0.0004x1x2 – 0.003x12 – 0.002x22.7. There is regression equation that effects of tomato chlorophyll content(y) on maintaining time(x1) and interval time(x2): y= 2.374 – 0.012x1 – 0.092x2 – 0.03x1x2 – 0.001x12 – 0.215x22; Root activity: y= 0.236 – 0.01x1 – 0.012x2 – 0.06x1x2 – 0.003x12 – 0.013x22; Soluble sugar content: y= 2.537 – 0.101x1 + 0.255x2 – 0.066x1x2 – 0.089x12 – 0.067x22.8. There is regression equation that effects of tomato plant water use efficiency(y) on maintaining time(x1) and interval time(x2): y= 1.879 – 0.077x1 – 0.028x2 + 0.347x1x2 – 0.187x12 – 0.221x22.9. At tomato seedling stage, Seedling best solution for the liquid supply is the maintain time from 13 to 16 minutes, and interval time is from 319 to 371 minutes. We suggest this program for tomato seedling fertilizer supply.