Effects Of Different Sowing Stages On Growth Characteristics And Quality Of 3 Kinds Of Health Vegetables In Solar Greenhouse

Through March 2015 September 2015 to three health care vegetables every month for sowing treatment, research on ice dish, tetragonal, snow Sakura three health care vegetables in Ningxia greenhouse cultivation adaptability and the optimum sowing date. Test results show that:1) the optimum sowing date of the ice vegetable cultivation in the sunlight greenhouse in Ningxia area was in August 20th, and planting in September 26th. New greenhouse in Ningxia area the most suitable sowing date for the May 20th June 29th planting seedling. The most suitable sowing date of snow cherry in Sunlight Greenhouse in Ningxia area was in April 20th, and planting in May 19th.Temperature difference between day and night in the 2) greenhouse environmental factors of ice dish growth characteristics influence, and stem diameter, plant height, number of branches, crown width was positively correlated with chlorophyll content showed negative correlation. Week average humidity of New Zealand spinach stems rough showed significant positive correlation, the temperature difference between day and night on the plant height and crown width showed significant negative correlation, PA and New Zealand spinach chlorophyll content was positively correlated, geothermal temperature and the New Zealand branch number was negatively correlated. Day and night temperature difference snow Sakura branch number, chlorophyll content, crown width was significantly negatively correlated with weeks are humidity snow Sakura plant height was significantly and positively correlated.3) of different sowing dates on cultivated in solar greenhouse three health vegetable growth period has significant effect, with the delay of sowing time, greenhouse temperature increased first and then decreased, making the growth period of ice dish first relationship after prolonged, July seedling growth period is the shortest, autumn, winter growth period is 3.02 times the summer growth period. The growth period of New Zealand first relationship after prolonged, the growth period of spring than autumn reproductive period, growth period of Sowing on June 20 is the shortest. With the delay of sowing date, the growth period of snow cherry shortened and then extended, the shortest growth period was. July 20th, and the spring growth period was higher than that in the autumn.4) with sowing date delayed ice dish of height, stem diameter, cotyledon area, really leaf area was first increased and then decreased trend, the emergence rate, seedling index showed variation trend of decreased first and then increased, with the sowing date extended ice vegetable plants crown, chlorophyll content, stem diameter, leaf area, showing decreased first and then increased with the trend.5) sowing period’s influence on apricot seedling index was not significant that Tetragonia four seasons Jieke seedling with sowing date extended ice vegetable plants crown, chlorophyll content, stem diameter, leaf area, showing decreased first and then increased with the trend. New Zealand plant stem diameter, plant height, crown width is decreased first and then increased tendency with sowing date increased, the chlorophyll content and the number of branches was first increased and then decreased trend. With sowing date delayed snow Sakura chlorophyll content, number of branch, crown diameter, stem diameter showed a change trend of decreased first and then increased, the plant height was increased first and then decreased trend.6) the effect of sowing date on the organic acid is not significant, the soluble sugar content increased first and then decreased with the delay of sowing date, and the vitamin C content on the contrary, the yield increased. Sowing period does not have a significant influence on the content of organic acids in New Zealand, soluble sugar content, with sowing date delayed vitamin C showed a decreasing trend and the yield was first increased and then decreased trend. Sowing period snow Sakura organic acid content, soluble sugar content was first increased and then decreased trend of vitamin C content, yield showed a downward trend.The results of the experiment show that broadcast phase to tetragonal, dish of ice and snow Sakura growth development has significant influence, and that only in suitable environment growth, in order to ensure the quality and yield. In Ningxia sunlight greenhouse cultivation, we should timely raise seedling, transplanting, strengthen the management of the greenhouse, and improve the level of environmental factors in the control facilities.