Study On Root Field Water Consumption And Production Quality Of Grape Planted In Deep Trench On Northwest Sandy Land

This experiment with the ’jingya’,’red globe’,’cabernet sauvignon’,’merlot’as test materials, researched grape root field water consumption, and also studied berries yield and quality at two kinds of the deep trench planting and conventional flat planting. Overwintering branches and the growth regulation of each grape variety were compared at different cultivation mode. The results were as follows:(1) Studying the water consumption situation of grape root at two kinds of planting pattern, we found that the evaporation and evapotranspiration at deep trench planting were lower than at the flat planting in control of water cycle. The deep trench planting could effectively reduce roil water consumption.(2) In terms of the berry yield and quality indicators of each variety, we found that the deep trench planting the reducing sugar, the soluble solids. total sugar and sugar acid ratio of grape berries were higher than the flat planting, but total content of the deep trench planting was lower than the flat planting. At the same time, the grape grain weight and yield per plant of the deep trench planting were higher.(3) Comparing grape growth of two planting mode, double membrane covering the winter of deep trench planting could advance the time of the burgeoning various varieties, particularly for the influence of fresh food variety was the largest. Meanwhile, double membrane covering the winter of deep trench planting could extended the growing period of test varieties.(4) With deep groove dual mode of grape planting winter protection, plant germination rate was significantly higher than the flat planting, and improved the overwintering ability of grape plant...