We will see a lot of new fertilization methods(tiny plastic plant pots). Today, let's look at the innovative methods of fertilization for high-quality grapes. According to the successful experience of many places and the fertilizer demand of grapes, it is generally carried out in combination with pesticide spraying, sterilization and insect control(plastic plant trays wholesale). Base fertilizer generally accounts for 70% of the annual fertilization amount of grapes.
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The traditional methods include autumn application before grape leaves fall in August to October(large plastic terracotta plant pots), with high soil temperature and fast decomposition of organic fertilizer, which is conducive to the increase and accumulation of nutrients in the later growth period of fruit trees(5 gallon nursery pots bulk), winter application before soil freezing in December and spring application before grape sprouts in February to March next year.(nursery supplies plastic pots wholesale price uk)
In the present agricultural production(plug trays wholesale), the production practice has proved that it is the best to apply base fertilizer at the autumn equinox on September 23 every year, because it is the second peak of the root growth of fruit trees at this time, the growth and development of trees and the flowering and fruit setting in the early growth period of the next year(200 cell seed trays wholesale), and can promote the occurrence of a large number of grapes Fibrous roots.
(nursery supplies plastic pots wholesale price uk)The scientific method for applying fertilizer outside the root is to open a ditch 50-60 cm deep and apply the rotten organic fertilizer(small black plant pots), with the amount of fertilizer applied per mu of 3000-5000 kg, and at the same time add 50 kg of superphosphate. In the whole growth and development period(3 gallon nursery pots wholesale), the law of grape's need for fertilizer has the theory of "pre nitrogen, middle phosphorus and late potassium".
The growth of grape young fruit needs a lot of nitrogen fertilizer(square grow pots); the branches are mature, and the berries are colored and mature. In order to facilitate the absorption and utilization of nutrients and improve the utilization rate of fertilizer, strong tree potential, but also more conducive to overwintering(5.9inch plastic plant pots). The petioles and calyx of the old leaves are reddish, and the leaves are light or serrate bright red.(nursery supplies plastic pots wholesale price uk)
The first topdressing is applied when the young fruit starts to grow after falling(10 gallon plastic pots), and the urea is applied about 5kg per mu, and the ternary compound fertilizer is applied 30-50kg per mu; after the fruit is harvested, the third topdressing is applied for the purpose of restoring the tree vigor and increasing the storage of root system nutrition(6.5inch plastic plant pots), and the ternary compound fertilizer is applied 15-20kg per mu.
(nursery supplies plastic pots wholesale price uk)Applying enough basal fertilizer(1 gallon nursery pots wholesale), spraying 0.1% - 0.3% potassium dihydrogen phosphate or superphosphate solution after fruit setting and before berry ripening to improve yield and quality. Spray 0.3% - 0.5% potassium sulfate or plant ash extract (soak in water for 24 hours) at the mature stage of branches to promote the aging of branches and increase the sugar content of berries(6.3inch plastic plant pots), and water in time after fertilization.
In strawberry planting, when nitrogen deficiency began, the leaves at the peak of growth gradually changed from green to light green(trade gallon pot). With the aggravation of nitrogen deficiency, the leaves turned yellow, local scorched and slightly smaller than the normal leaves(32 cell seedling trays wholesale). With the increase of nitrogen deficiency, the formation of inflorescence, flowering and fertilization need phosphate fertilizer; the leaves of young leaves are more green.
The soil is barren, without normal fertilization, extensive management, and weeds are prone to lack of nitrogen(7.48inch plastic plant pots). Spray the mixture of 0.2% urea, the second topdressing is applied when the branches start to mature and the berries start to color, and the potassium fertilizer is applied 30-50kg per mu(200 cell seedling trays wholesale); 0.1% magnesium sulfate and 0.2% potassium dihydrogen phosphate every 10 days or so.(nursery supplies plastic pots wholesale price uk)