Urea application double horizontal mesh,High Quality double horizontal mesh,double horizontal mesh Details Hebei Giant Metal Technology Co., Ltd. , http://www.358fencing.com
   The shortage of human food resources and protein has also caused a major problem in the feed industry. The industry is actively looking for new sources of protein and expanding sources of nitrogen Other than proteins, such as urea with high nitrogen content.
 1897 , Waesk et al. proposed the idea that ruminants can convert non-protein nitrogen into bacterial proteins. In 1949 , CJ Watson et al. fed sheep with N15- labeled urea capsules, and after 4 days , proteins containing N15 were detected in sheep blood, liver, and kidney . This confirms that ruminants can utilize non-protein nitrogen. In the same year, JK Looli et al. used urea as the sole nitrogen source to feed the sheep and found that the sheep were able to balance the positive nitrogen, indicating that the microorganisms in the rumen of the sheep can use urea to synthesize the 10 essential amino acids required for their growth . Since then, urea and urea compounds have become feed additives for ruminants.
  It can be used as a raw material for many products such as melamine, monoammonium phosphate , hydration trap, tetracycline, phenobarbital, caffeine, reduced brown BR , indigo blue B , indigo blue Bx , and MSG.
   First, 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 ). 0.5 % urea solution is sprayed on the leaves. Even spraying 2 times can increase the nitrogen content of the leaves, accelerate the growth of new shoots and inhibit the differentiation of flower buds, so that the flowering capacity of the new year is appropriate. Welcome to the company's official website http://
  Second, thinning flowers and thin fruit 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.
 Third, 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 ) , and the breeding effect was similar to that of gibberellin without increasing the plant height.
  Fourth, pest control 4:1:400 parts of urea, washing powder and water can be mixed to prevent pests such as aphids, red spiders and cabbage caterpillars on fruit trees, vegetables and cotton, and the insecticidal effect is over 90 %.
 Five, urea iron fertilizer Urea forms chelated iron with Fe2+ in the form of a complex . This organic iron fertilizer has a low cost and is effective in preventing iron deficiency and chlorosis. In addition , 0.3 % urea was added to the foliar spray of 0.3 % ferrous sulfate, and the effect of controlling chlorosis was better than that of single-spraying 0.3 % ferrous sulfate.
Urea application