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Urea as top-dressing fertilizer is better than other nitrogen fertilizers. However, when spraying, we must pay attention to the following questions:
First, do not spray in hot weather or before rain, so as not to burn seedlings or lose fat. The spraying time is appropriate every morning or afternoon, and sprayed once every 7-10 days.
Second, when cereals or smooth-leaved crops are sprayed, add 0.1% of an adhesive (such as washing powder, wash and clean) and so on. Otherwise, the effect is not good.
Third, for spraying urea, biuret content can not be higher than 0.5%, high content for top dressing is easy to damage the leaves.
Fourth, the different types of crops require that the concentration of spraying urea solution is also different, the general requirements of cereal crop spraying is 1.5-2%, in the spraying period, the concentration is even lower. The spray concentration of leafy vegetables and cucumbers is 1-1.5%. Apples, pears, grapes and other fruit trees are suitable for 0.5%. Tomato with 0.3% is appropriate.
Trichloroisocyanuric Acid is an organic compound with the formula (C3Cl3N3O3). It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis.This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and Water Treatment use. Salts of trichloroisocyanuric acid are known as Tcca Powder.
The compound is a disinfectant, algicide and bactericide mainly for swimming pools and dyestuffs, and is also used as a bleaching agent in the textile industry. It is widely used in civil sanitation for pools and spas, Sodium Hexametaphosphate preventing and curing diseases in animal husbandry and fisheries, fruit and vegetable preservation, wastewater treatment, Melamine Powder as an algicide for recycled water in industry and air conditioning, in anti shrink treatment for woolens, for treating seeds and in organic chemical synthesis.
Tcca Granular as used in swimming pools is easier to handle than chlorine gas.Tcca Chlorine Tablets dissolves slowly in water, but as it reacts, cyanuric acid concentration in the pool will build-up.
Trichloroisocyanuric Acid,Tcca Granular,Tcca Powder,Tcca Chlorine Tablets
HENAN LIHAO CHEM PLANT LIMITED , https://www.lihaoche.com