In mid- and late October in the grape leaves are not frost damage when spraying a 200--300 times liquid 80% must or 1: 0.7: 100 times Bordeaux liquid, etc., and watering. Then buckle the trellis, and cover thatch, began to carry out artificial centralized pre-cooling treatment, so that the temperature in the facility as far as possible to maintain between 0 - 9 degrees. During this period to retain the leaves to let them fall off naturally, to be leaf shedding, in accordance with the characteristics of varieties and plastic requirements, timely winter pruning.

Winter early cultivation dormancy lifting period and germination management

Two, winter early cultivation germination management

To be the grape varieties need to meet the cold 2/3 - 3/4 (general varieties need to be 25 - 60 days), daytime uncovering thatch began to warm up, watering immediately, warming up in time for 2 - 3 days. Grape dormant buds or branches with grape dormant agent coated or sprayed to promote the lifting of grape dormancy, in order to make the grape budding normal and neat; 12 - 15 days after the warming of spraying 3 boomerang degrees of thiosulfuric acid to eradicate residual pathogens. This period of temperature control is very important. Need to warm up slowly, so that the air temperature and ground temperature warming coordinated. At the same time, maintain high soil moisture and air humidity. Temperature control standards: the first week of 15 - 20 degrees during the day, 5 - 10 degrees at night; the second week of 15 - 20 degrees during the day, 7 - 10 degrees at night; the third week to sprouting 20 - 25 degrees during the day, 10 - 15 degrees at night. From warming to sprouting is generally controlled in 25 - 35 days is appropriate. Humidity control standards: air relative humidity requirements of more than 90%, soil relative humidity requirements of 70% - 80%. To be sprouted and then watered once. At this time can be combined with a nitrogen fertilizer such as urea, such as good tree nutrition can not be applied. Then the whole garden covered with mulch to reduce air humidity, reduce or avoid the occurrence of disease.

Winter early cultivation dormancy lifting period and germination period management