From 180 to 200 days from sowing to harvest, the cotton grows for a long period of time and consumes a large amount of fertilizer. Based on the reuse of basal fertilizer, it is necessary to properly force the fertilizer during the growth period of cotton to ensure a high yield of cotton. In the whole growth period of cotton, there is a clear trend of lesser, more, and less dynamic changes in the fertilizer requirement for the whole growing period. That is, the emergence of buds (the period from May 1 to June 10) is small; the buds are blooming (from June 10 to June 7). On the 5th of the month, the demand for fertilizer increased rapidly; the flowering boll (from July 5 to the end of August) required fertilization to reach the highest peak; the boll opening and one harvest (after the end of August) gradually decreased again. According to the law of fertilizer requirement in cotton life, the following four aspects of cotton dressing are determined: 1. Light, partial or no seedlings. Cotton is a sparse crop and there must be contributions to increase yields. As cotton enters a period of high growth, the competition among plants is fierce. It is easy for weak seedlings to contend for nutrients and there is a phenomenon of budding and flowering (commonly known as "public cotton"). Therefore, cultivating strong seedlings is the basis for high yield. When the Baha is adequate, when the emergence is neat and consistent, it is possible to give light or no Miaofei; when the seedlings are high, short, strong, and weak, they must be applied to the short and weak seedlings to promote strong growth and seize high yields. 2. The stable application of bud fertilizer. After budding, buds begin to appear and the amount of fertilizer needs to increase rapidly. Nitrogen fertilizer should be topdressed to supplement the deficiency of nutrients. Attention should be paid to the time when topdressing nitrogenous fertilizer. It should be carried out during the period of Shenglei (after the end of June), and 5 to 8 kg of urea should be recovered by Mu. 3. Reapply flower bud fertilizer. When cotton enters the flower bud stage, it needs to reach the highest peak of the fertilizer, and the growth is most prosperous. The re-application of bud fertilizer can play a significant role in increasing production during this period. Shiba time to master in the 7-10 days after flowering, the lower part of the seated a bell with a diameter of more than 2 cm (July 15-20), acres of topdressing urea 10-15 kg, promote plant growth in the lower peach. 4. Apply top cover fertilizer. In early August, when cotton enters the boll opening stage, the amount of growth gradually weakens. Applying the top dressing fertilizer in appropriate amounts during this period can serve the upper autumn peach, and at the same time, it can also improve the quality of autumn peach. Mu recovery urea 3 ~ 5 kg, combined with pest control foliar spray fertilizer, with 2% urea and 0.2% potassium dihydrogen phosphate mixture spray.

what is natural food color?

Natural food coloring refers to pigments extracted or prepared from plants, animals, microorganisms or other natural sources for coloring food. These pigments are naturally produced due to biochemical reactions in living organisms and do not contain synthetic chemical components.
Natural food colors can be divided into the following categories according to their source:
1. Plant pigments: This is the most common source of natural food pigments, including pigments derived from a variety of fruits, vegetables, flowers, and plant roots. For example, red beets can provide red pigments, carrots can provide orange pigments, turmeric can provide yellow pigments, and blueberries and purple potatoes can provide purple and blue pigments.
2. Animal pigments: These pigments are rare and usually come from the tissues or excretions of certain animals. For example, cochineal is a red pigment derived from the cochineal insects that live on certain cacti.
3. Microbial pigments: Some microorganisms, such as monascus, can produce specific pigments, such as monascus red pigments.
4. Mineral pigments: Although less used, certain inorganic minerals can also be used as natural food pigments, such as titanium dioxide (white) and iron oxide (red, yellow and black). However, due to possible toxicity issues with some mineral pigments, their use is often severely restricted or banned.
Natural food colors are generally considered safer and healthier than synthetic colors due to their nature. However, their color stability, heat resistance, light resistance, and interaction with other food ingredients may not be as good as synthetic pigments, so their application in the food industry sometimes presents some challenges. At the same time, the extraction and processing of natural pigments can also affect their cost and sustainability. Nevertheless, as consumer concerns about food safety and health increase, the demand for natural food coloring is growing.

Natural Food Colorants,Natural Food Pigments, natural food color

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