Research On Water Consumption And Irrigation Scheduling Of Mini Cucumber In Solar Greenhouse

In the past few years,there is a great advancement in the domain of installation agriculture.The management of planting with installation is different with planting in nomal field,especially,in the solar greenhouse that the environment in it are unattached correspondingly.In solar greenhouse,there are many especial characteristics with water and heat transfer,if modys that based on field test were used to estimate crop water requirement,big warp may be brought in.Experimental studay on cucumber in greenhouse were implemented for 8 months in north of China.Plentiful data was collected in 8 month, such as environmental factors and moisture movement in greenhouse.With the help of math analyse software,Water consumption pattern of cucumber was mensurated and modle of cucumber water requirement were set up.Cucumber irrigation procedure was constituted by referencing physiological indexes with different moisture treatments.The main results as follow:1.The situation of root developments were analysied by root scanner in different stubbles,and the irrigation wetting dept in full-bearing age was found.2.Comparing with the output of different treatments,We can see that,the higher irrigation limit can help to increase output in full-bearing age,but in evening-harvest age,it's helpless.3.With the help of lysimeter,cucumber water requirement was accounted out;The correlation sequence of climate factors and leaf area to transpiration intensity was net solar ration,relative humidity＞water surface evaporates＞LAI＞temperature.The models of transpiration intensity were set up.4.The model of transpiration intensity and evaporation intensity were combined as the model of cucumber water requirement in solar greenhouse.5.Taking saving water,saving load and high yield as principle,taking output,water consumption as filtrating indexes,the most suitable cucumber irrigation procedure was constituted.