China manufacturer supply the Urea 46% fertilizer

Product Overview

Description

Hot selling high purity agriculture/industrial Urea N46%

Industrial			Agricultural
Item	Superior class	First class	Standard class	Superior class	First class	Standard class
Nitrogen	≥ 46.5	46.3	46.3	46.4	46.2	46.0
Biuret	≤ 0.5	0.9	1.0	0.9	1.0	1.5
Moisture	≤ 0.3	0.5	0.7	0.4	0.5	1.0
Fe	≤ 0.0005	0.0005	0.0010
Basicity	≤ 0.01	0.02	0.03
Sulfate	≤ 0.005	0.010	0.020
Water-insoluble  content	≤ 0.005	0.010	0.040
HCHO				≤  0.6	0.6	0.6

Adjust the amount of flowers

>> In order to overcome the size of apples, in the small years, 5-6 weeks after flowering (the critical period of apple flower bud differentiation, the growth of new shoots is slow or stopped, the nitrogen content of leaves is decreasing), and 0.5% urea aqueous solution is sprayed on the leaves. Even spraying twice can increase the nitrogen content of the leaves, accelerate the growth of new shoots and inhibit the differentiation of flower buds, so that the annual flowering amount is suitable.

Fruit thinning and Flower thinning

>> The flower organs of peach trees are sensitive to urea but the reaction of kneading is slow. Therefore, the use of urea to test the peach and nectarines in foreign countries has shown that the peach and nectarines need to be concentrated. (7.4%) can show good results, the most suitable concentration is 8%-12%, within 1-2 weeks after spraying, it can achieve the purpose of thinning flowers and fruit. However, under different land conditions, the response of different periods and different varieties needs further testing.

Rice seed production

>> In the hybrid rice seed production technology, in order to increase the parental rate of heterosexuality, in order to increase the amount of hybrid rice seed production or the number of sterile lines, the erythropotox is used to reduce the degree of maternal neck or Completely withdraw; or spray parental, adjust the growth of both, so that the flowering period is synchronized. Because of the relatively high price of gibberellin, the cost of seed production is high. People used urea instead of gibberellin for experiments. 1.5%-2% urea was used at the booting stage and at the beginning of the earing stage (20% heading). The breeding effect was similar to that of gibberellin and did not increase the plant height.