Natural pigments are food pigments obtained from natural resources. A pigment extracted mainly from animal and plant tissues and microorganisms (culture), of which most are plant colorants.Natural pigments have the advantages of safety and no side effects. Due to the use of natural pigments, the appearance of some products is less artificial, so they are closer to the natural form, thus attracting more consumers. Our product:Turmeric extract;Lycopene;Beta carotene;Chlorophyll;Maize yellow pigment.
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How to get good seedlings of cotton seedlings
At present, the majority of cotton-growing regions in China rely on nutritional seedlings. When evaluating the success or failure of seedling emergence, two main factors must be considered: the germination rate and the seedling survival rate. A low germination rate is often attributed to certain cotton varieties that have a high proportion of autumn or late-autumn peaches, which negatively affects seed viability. However, seeds selected from permafrost or medium-flowering varieties typically show a germination rate above 80%. Another contributing factor is the lack of strict quality control during seed processing, leading to an excessive number of damaged seeds. Additionally, some farmers fail to apply proper soil cover or use incorrect disinfectants, which can hinder seedling development. This year, prolonged dry weather after sowing has also led to poor watering practices, resulting in weak or failed seedlings. Other issues include planting seeds too deep or too shallow, which can cause weak growth, shell entrapment, or crooked stems. Lastly, many farmers neglect to protect the leaves of emerging seedlings with timely pesticide applications.
In terms of low seedling survival rates, some farmers report that seedlings appear healthy initially but later die off significantly. During field inspections, it was observed that blight and anthrax were the primary causes, accounting for over 80% of all dead seedlings. The second major issue was damage caused by improper fertilizer use or pesticide application, while high temperatures also contributed to seedling burn. No instances of frost damage were recorded during the survey.
Generally speaking, high-quality cotton varieties have the potential to produce both high yields and superior quality. Compared to inferior varieties, they tend to have higher germination and seedling survival rates. However, even excellent varieties do not guarantee a high emergence or seedling rate. This year’s seedling nursery experience revealed that some farmers had not yet adopted the best practices of "seeding once and seedlings once." To address this, lessons must be learned and improvements made in future seedling cultivation. First, farmers should choose high-maturity, high-quality cotton varieties and avoid using underdeveloped seeds. Second, seeds should be pre-soaked 2–3 days before sowing, and any damaged or unviable seeds should be removed, which can increase the germination rate by 3–5%. Third, the seedbed should be changed annually to prevent the buildup of soil-borne pathogens. Fourth, the seedbed and covering soil should be disinfected thoroughly. When the two cotyledons emerge, spraying with fungicides like Bordeaux mixture, Puk, or Shileshi can help protect the young plants. Finally, during the entire nursery process, care must be taken to avoid drought, waterlogging, chemical phytotoxicity, fertilizer burn, frost, and heat stress.