Studies On Intensived Seedlings Production Techniques Of Celery

Vegetable seedling is a basic part of vegetable planting,improve the quality of vegetable seedlings is to promote the development of vegetable industry and to meet the primary task of consumer demand for vegetables.In our country,the research and development of vegetable seedling technology,technology promotion and vegetable seedling scale,intensification,specialization,industrialization,is still in the stage of development of vegetables.The soil cultivation technology is a new breeding technique,the main way is a vegetable seedling in intensive breeding,it through between water and fertilizer and solid material combination,from the traditional soil cultivating seedling,is suitable for intensive production of vegetables in without soil seedling method.In this experiment,celery varieties of "Seattle" as the test material,the main technical problems existing in the celery seedling,"screening" selected the best volume ratio of the mixed matrix and the most suitable celery seedling nutrient solution formula of the test,as a test and test two.The results showed that the plant fresh weight of the aerial part of Treatment A4B2C1D1E2(Cultivation substrate being 1/2 peat and 1/2 vermiculite,and the concentration of the iron salt being 1 times,the concentration of trace element being 0)was the highest at the seedling stage,being 1.9403 g.Seedling growth medium measurement results show that the treatment of A1B1C1D1E1(matrix ratio of Peat: vermiculite 1:0,a large number of elements in the nutrient solution formula 1,concentration is 1 times to 1 times the concentration,salt concentration,trace elements of trace elements of general formula)the medium-term growth of plant seedling fresh weight of the overground part,reached 3.5629 g,was significantly higher than that in combination other treatment;seedling to plant measurement,the results show that the processing of celery,A4B2C1D1E2(matrix ratio of Peat:vermiculite 1:1,a large number of elements in the nutrient solution formula 2,concentration is 1 times to 1 times the concentration,salt concentration,trace elements of 0)The plant aboveground fresh weight reached maximum,5.3173 g,was significantly higher than that of other treatment combinations,the aboveground dry weight,plant height,maximum leaf area index was significantly higher than the other treatment combinations.Therefore,in the process of celery seedling can change along with the growth of plant nutrient solution formula of this system can speed up the celery seedling the speed.Formula sixteen basic nutrient formula given in 7 relatively large elements,A large amount of elemental formula in nutrient solution contains potassium nitrate,KNO3,606.6mg/L,ammonium nitrate,NH4NO3160mg/L,dilute phosphoric acid,3.1mg/L,and maked it with tap water;trace element is used in vegetable general formula this combination is the best nutrition formula on seeding effect of celery in nutrient solution under 7 irrigation celery plant height,stem diameter,shoot fresh weight,leaf area The values were the highest,respectively,the plant height: 20.9cm,stem diameter: 0.747 cm,fresh weight:5.2582 g,leaf area:25.31cm2.