According to the fertilization characteristics of tea trees, scientific fertilization
Measures to improve the spring and fertilizer production :( 1) heavy winter plus fertilizer Fertilizers: Usually be applied to early October in late October, the winter can also be combined with deep plowing, farm farmyard manure applied 667m2 Cake 100kg 1500kg or more, plus Apply 20kg of compound fertilizer or 10kg of urea, and ditch ( 20cm deep ) vertically below the edge of the canopy and apply it at the same time, and cover the soil in time. (2) Early application of germination fertilizer, pay attention to the fertilization method: Spring tea is the first round of new shoots of the winter bud germination of the previous year. When the tea buds are extended to the initial exhibition of the fish leaves, the germination effect is good. Generally , it is applied 20 days before mining , and it must be applied by ditching and soiling while fertilizing. (3) Spraying foliar fertilizer combined with growth hormone: in the early stage of tea tree germination (in January and mid- January ) , spraying 1% urea combined with 300 times liquid tea germination and high yielding on the leaf surface can promote tea bud Early germination, picking in advance 7 - 14d , can also increase yield by 17. 0% - 30. 0% , significantly improve the quality of tea.
Combine “cutting, harvesting and raising†to cultivate a high-yield tea garden of “strong, wide, dense and homogeneousâ€. To cultivate a "rich, wide, dense, and Qi" high-yield tea garden, you must do a good job of "cutting, harvesting, and raising" the tea garden . (1) Tea garden pruning: Lightly pruning adult tea trees that are put into normal production can increase the density of tea buds in the canopy, reduce the claws, weak techniques, dry branches, pests and branches, promote the growth of new shoots, and increase the yield of tea. It is well known, the spring and the main surface of the crown on left wintering fall tree buds axillary buds grow into the tip as the raw material, hair buds early winter, more dense, homogeneous, Wang, spring bud yield It is high and the quality is good. To enable more of overwintering buds germination to shoot, Mature tea light pruning period shall be October before pruning in autumn after tea (do not prune after, if pruning will cause spring and cut, immediately after pruning until spring and mining ) , so that after trimming, a batch of new shoots can grow. It can retain more and more wintering buds that have been refurbished in the autumn and winter, and the strong and neat spring shoots can be cultivated, and the high-yield and high-quality canopy can be cultivated.
Tea garden adoption: When picking, you should do "five picks and five raises". That is, the noodles are raised, the height is raised, the side is raised, the density is thin, and the small is raised. Not strong mining, grab mining, through reasonable breeding, can increase the thickness of green leaf layer, widen the tree width, increase the effective production of twigs and improve crown coverage.
After tea straw coverage, extend the spring and autumn and winter harvest of tea deep fertilization, according to local conditions, the use of rice straw, chaff, weeds and other comprehensive blanket around the tea garden, its main role are: (1) promote the growth of tea, tea production increase . (2) Water conservation and soil conservation to reduce nutrient loss. (3) Control weeds and adjust the ground temperature. (4) Increase soil organic matter and improve soil physical and chemical properties. Spreading the grass can make the tea tree break the dormancy in advance and artificially prolong the growth time of the spring tea.
After the closure of the tea plantation in the winter tea garden, combined with the management of the tea plantation, cut off the weak branches of the pests and diseases, remove the litter, and plow the weeds in the garden or the garden to eliminate the wintering pests and diseases, and to 0. 5 Bomei The comprehensive application of the stone sulphur mixture can greatly reduce the occurrence of pests and diseases in the second year. The second year in early spring, combined with foliar spraying of tea, tea braced insurance, Uranus and other pesticides proceed Pensha. In order to avoid the occurrence of pesticide residues, it is not necessary to carry out chemical control during the spring tea picking. After the end of spring tea, according to the type of pests, choose pesticides with high insecticidal activity, high efficacy, and ability to treat several kinds of pests, and carry out comprehensive prevention and control of bacteria, medicine and fertilizer. Minimize the use of pesticides, avoid killing natural enemies, and more importantly, not give pesticide residues to tea leaves. The main technical measures to improve the production of spring tea.
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