Reaserch on the Seeding-raising Technique in Substrate and Nutritional Physiology During the Germination of Tea Seed
|School||Shandong Agricultural University|
|Keywords||Tea tree Matrix screening Physiological characteristics Nursery container Nutrient absorption|
In this experiment, the \Screened three kinds of peat, perlite, quartz sand, a chicken and gneiss saprolite matrix formulation, and research by breeding of the three kinds the formulations of tea seedlings growth and physiological characteristics of theory, and from filter out the optimal matrix formulation; container seedling growth comparison, preferably a container suitable for tea tree growth; track and analyze the status of tea tree nutrient uptake, developed during the growth of the tea seed seedling nutrient absorption characteristics . The main results are as follows: 1 peat, quartz sand, perlite, gneiss weathered soil, manure, cow dung, rice husk as raw material composite matrix, peat: quartz sand: perlite = 2: 1:1 peat: quartz sand: perlite = 3:1:1 and peat: gneiss saprolite: chicken = 3:1:0.5 three kinds of physical and chemical properties of the composite matrix and its cushioning properties to meet the breeding requirements, as the breeding of matrix field screening. 2 through nursery test shows quartz sand: peat: perlite = 3:1:1 ratio of matrix conducive to tea tree roots growth, but to peat: quartz sand: perlite = 2:1:1 ratio matrix, the physical structure, can provide a suitable environment for the growth of tea tree, its cultivation of tea tree height, stem diameter, leaf area, internode length, stem, leaf dry weight, chlorophyll content and net photosynthetic rate, etc. are better than other treatments, tea tree nursery substrate compositions. 3 32-hole and 50-hole disk limits the growth of tea tree roots, thereby affecting the growth of the tea tree. The cultivation tank tea tree to provide a suitable environment for the growth is conducive to the growth of tea tree roots, the cultivation of tea tree height, stem diameter, leaf area, internode length, biomass, chlorophyll content and leaf net photosynthetic rate are better than other treatments, tea tree nursery container. Week watering nutrient solution pH decreased and remained at about 4.2; EC value smaller; planting one month after the absorption of each element are kept at a lower level, from late May to late July remained at a high level, maximum absorption peak: NH4-N was 6.72 mg · the strains -1 sup>, the NO 3 - sup>-N was 0.78 mg · plant -1 sup>, P 0.796 mg · strains -1 sup>, K 10.75 mg strains -1 sup>, Ca to 5.13 mg · strains - 1 sup>, Mg to 0.26 mg · the strains -1 sup> Fe to 69.07 micrograms · strains -1 sup> Mn 222.88 micrograms · strains -1 < / sup>, Zn 106.36 micrograms · strains the -1 sup>; During the trial the total absorption law of the elements: K gt; gt; Ca GT; P GT; Mg gt; Mn gt; Zn gt; Fe.