What are the quality and quality of the coated high-quality cotton seeds?
The so-called coated cotton seed is the product that is obtained by removing the short cashmere after the use of the fine cotton seed with dilute sulfuric acid, and then coating with a seed coating agent containing a bactericidal drug and a modifier. According to our investigations in some farmers in the cotton district all year round, some cotton seedlings do experience dead seedlings. Most of them are dead seedlings, and other diseases and mismanagement of physiological seedlings. The main reason is that the improved varieties do not have good application methods. The specific performances are as follows: First, cotton seedlings are not used to disinfect and sterilize the topsoil of rammed soil and cotton-covered species after sowing; the second is the sowing of cotton seeds. After watering too much, some repeated watering causes bad seeds; Third, excessive application of base fertilizer, soil liquid concentration is too large, the occurrence of reverse osmosis injury seedlings, or the application of urea as a base fertilizer to make cotton seed dehydration and bad species, which is often said The fourth is that if the cotton seeds are so shallow or too deep, the normal growth and development of the cotton seedlings will be inhibited, resulting in dead seedlings; Fifth, the cotton seedlings will not be sprayed with pesticides in time to prevent the invasion of the cotton seedlings, or the application of pesticides. Excessive concentration of burned cotton seedlings caused death, causing phytotoxicity; six is ​​to prematurely uncover the plastic film or premature withdrawal of the film, so that young cotton seedlings suffered freezing injury into a dead seedlings.
In view of the above, in order to play a good role in the finishing of coated cotton, it is necessary to understand the type of coated cotton, and then do a good job of supporting the application of technical measures.
First of all, we must understand the role of coated cotton seeds. After the cottonseed has been coated with foam acid, it has already killed the bacteria attached to the cotton seed, enhanced the disease resistance of the cotton seed, and has a significant advantage over the uncoated cotton seed. However, the resistance of the coated cotton seed species is limited, not a package. The germs transmitted by the soil and external forces must also be controlled to ensure the early emergence of cotton seedlings.
Second, we must grasp the supporting application technology. First, to increase the maturity of organic fertilizer, to avoid partial application of nitrogen fertilizer to promote long seedlings, weaken cotton seedlings; Second, with good cotton seedbed nutrient soil, discretionary phosphorus, potash. To ripen eucalyptus soil, it is beneficial to protect water filtration and prevent root rot. The third is to spray pesticide on eucalyptus and cotton seedlings. One can use 25% of Shiloyoshi seed coating agent 10 ml, and watering 10 kg of spray bed. Soil, the second can be 12.5% ​​phytofuran, with Bao Zhu (0.01% bryozoie lactone) solution to disinfect the seedlings, three can be used half-type Bordeaux mixture sprayed seedlings, four can be used 30% Hydramycotic agent 1000 times to 1500 times liquid Spray or irrigate.
The third is to ease the growth of cotton seedlings by the stiff seedlings. For phytotoxicity, fertilizer damage caused by rigidity, stagflation of cotton seedlings, one can use Huimanfeng or Zhuang Fu Xing active liquid fertilizer, 100 ml per acre, watered 60 kg spray; two available 0.01% Paula ) or Tianfengsu spraying; three available Bi Hu WP, sprayed with 50 grams per mu 3 grams of water, can be used to resolve the "two evils" to restore the normal growth of cotton seedlings.
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