According to the reproductive characteristics of grapes and fertilizer requirements, the fertilization of grapes is divided into: 1. Base fertilizer. Based on the application of organic fertilizer, each Shitian Ridge brand phosphorus nitrate potassium fertilizer 0.8 to 1 kg. 2. Top dressing. Usually top dressing 3 to 4 times a year, the first time for the early flowering, topdressing Tianhui brand phosphorus nitrate potash fertilizer 1.5 to 2 kg. The second time after flowering, that is, the young fruit expansion period, each plant Tianhui brand phosphorus nitrate potash 1.5 to 2 kg. The third time is the initial stage of fruit coloring. Each plant Shih ridge brand phosphorus nitrate potassium fertilizer 0.8 to 1 kg. The fourth time after fruit picking, 1.5 to 2 kg of potassium phosphorus nitrate per plant. In addition, 0.2% potassium dihydrogen phosphate was sprayed 2 to 3 times before ripening after fruit set.
Laboratory ovens are ovens for high-forced volume thermal convection applications. These ovens generally provide uniform temperatures throughout. Process applications for laboratory ovens can be for annealing, die-bond curing, drying, Polyimide baking, sterilizing, and other industrial laboratory functions. Typical sizes are from one cubic foot to 0.9 cubic metres (32 cu ft) with temperatures that can be over 340 degrees Celsius.
Laboratory ovens can be used in numerous different applications and configurations, including clean rooms, forced convection, horizontal airflow, inert atmosphere, natural convection, and pass through.
Some of the types of industries that typically use these laboratory ovens are the healthcare industry, technology industry, and transportation industry. Civil engineering laboratories uses ovens for drying asphalt, soil, rock, or concrete samples.
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The grape's reproductive cycle is divided into the period of injuring, sprouting, growth of new shoots, flowering, berry growth and maturation, dendrite maturation and dormancy. Among them, the flowering period and the berry growth and maturation period are the critical period for the grapes to need fertilizer. According to relevant data, for each 100 kg of fresh grape fruit produced, 0.3 kg of nitrogen, 0.15 kg of phosphorus, and 0.36 kg of potassium are required. Compared with apples, pears, and peaches, grapes absorb the most nitrogen, phosphorus, and potassium. What needs special mention is that grape is a typical fruit tree with good potassium, known as “potassium plantsâ€. Potassium can increase grape cellulose content and enhance cold resistance, and at the same time it can promote berry ripening, which is beneficial to nutrients. Metastasis increases sugar content.
Grape Scientific Fertilization Technology Method
Grapes and apples, citrus, pears and bananas are juxtaposed into five fruit trees. It breeds quickly, results are early, yield is high, and it is not tolerant to cold. It has a wide adaptability to soil. The most suitable is sandy loam.