Tea seedling breeding nutrient substrate and preparation method thereof

Abstract

The invention relates to a tea seedling breeding nutrient substrate and a preparation method thereof. The invention relates to a nutrient substrate for plant breeding, and particularly relates to a nutrient substrate needed by the fast breeding of a tea seedling and a preparation method thereof. The nutrient substrate is characterized by comprising the following components by weight: 80-210 kg of wood dust, 300-820 kg of silt, 50-300 kg of new loess, 5-15 kg of decomposed rapeseed cakes, 0.5-3.0 kg of chloride-free compound fertilizers, 1.0-5.0 kg of calcium-magnesia phosphate fertilizers, 0-1 kg of boron and 0-1 kg of zinc. The tea seedling breeding nutrient substrate disclosed by the invention can meet the requirement for all nutrition needed by the breeding of the tea seedling, increases 30000-40000 cutting seedlings per mu compared with the conventional nursery and enhances the outplanting rate by 25%-30%. According to the invention, the bred tea seedling is thick in stem and developed in root system; more than 8 effective cutting buds can be picked on the upper middle part of the tea seedling, so that the construction of a cutting orchard is omitted, and the double purposes of a seedling and a fringe are achieved; the fix planting survival rate of the seedling can be outstandingly enhanced, the fix planting can be subjected to shaping and pruning for 1-2 times in the current year, and the seedling subjected to the fix planting is benefited for 2-3 years in advance compared with the conventional tea seedling.

Description

technical field [0001] The invention relates to a nutrient substrate for plant breeding, in particular to a nutrient substrate required for rapid breeding of tea seedlings and a preparation method thereof. Background technique [0002] Due to its unique natural conditions and a long history of dark tea production, Anhua has become the birthplace of Chinese dark tea and the main producing area of ​​dark tea in the world. Especially in recent years, with the rise of dark tea consumption at home and abroad, the dark tea processing industry has developed rapidly. However, due to the backward construction of tea garden bases, the production of dark tea raw materials cannot keep up with the development of the industrial scale. The development of tea garden bases requires a large number of tea seedlings to breed, and there are two main methods for the existing tea seedlings to breed. One is to propagate seedlings with traditional seeds, which have poor seedling quality, large genet...

AI Technical Summary

Problems solved by technology

Especially in recent years, with the rise of dark tea consumption at home and abroad, the dark tea processing industry has developed rapidly. However, due to the backward construction of tea garden bases, the production of dark tea raw materials cannot keep up with the development of industrial scale.

The development of tea garden bases requires a large number of tea seedlings to breed, and there are two main methods for the existing tea seedlings to breed. One is to propagate seedlings with traditional seeds, which have poor seedling quality, large genetic variability, and slow results.

The second is to use conventional open field cuttings to propagate tea seedlings. Since there is no suitable nutrient substrate, the root system of the cultivated tea seedlings is not developed, the tea seedlings are not strong, and the survival rate of planting is less than 70%, and most of them need to be cultivated for 5 years. Harvestable, low yield

However, the nutrient matrix used for the breeding of flowers and saplings is very different from the nutrition required for the breeding of tea seedlings. The cultivated tea seedlings are not well developed, the tea seedlings are not strong, the survival rate of planting is not high, and it is difficult to achieve high quality. The standard of tea seedlings

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