The Causes and Prevention of Achillea

Rickets, in the context of leek cultivation, is a physiological disorder rather than an infectious disease. It manifests in two main forms: one is when the entire plant turns yellow, commonly referred to as "yellow wolfberry"; the other occurs in individual plants or leaves, where only part of the leaf turns yellow while the other remains green, known as "yellow bars." This condition affects the overall health and productivity of the crop. The primary cause of this issue is related to nutrient deficiency, which disrupts the normal photosynthetic process. As a result, chlorophyll breaks down and lutein becomes more visible, leading to yellowing of the leaves. Several factors contribute to this problem: 1. **Short Harvest Intervals**: Leeks require sufficient time between harvests for nutrient accumulation, especially during the later growth stages. If the interval is too short, the plants don’t have enough time to store nutrients, which weakens the root system and hinders the assimilation process, ultimately causing yellowing. 2. **Improper Cutting Height**: Cutting the leaves too short at harvest time reduces the storage capacity of the sheaths, which are crucial for nutrient retention. This leads to nutrient loss and poor root development, further impairing the plant's ability to perform photosynthesis. 3. **Water Deficiency**: Insufficient water supply—whether due to drought, early watering, or lack of rainfall—can lead to a state where the plant consumes more water than it can absorb. When stored water is depleted, the leaves turn yellow. 4. **Salt and Alkali Damage**: Planting leeks in highly saline soils can severely damage the root system, resulting in yellowing. Additionally, if damaged plants are not properly managed and continue to be harvested, the problem can worsen. To prevent rickets in leeks, several measures should be taken: - Maintain a proper harvesting interval of at least 30 days, with a minimum of 25 days. - Avoid cutting the leaves too short; ensure the stubble is left at an appropriate height. - Water regularly based on soil moisture levels, keeping the soil consistently moist but not waterlogged. - Choose suitable planting areas and manage fertilization and irrigation carefully to avoid soil salinization. - Implement effective pest and disease control strategies, including timely root management. By following these practices, growers can significantly reduce the occurrence of rickets and maintain healthy, productive leek crops.

Feed Additive

Feed additive refers to a small amount or trace substance added in the process of feed production, processing and use. It is used in feed in small amount but plays a significant role. Feed additive is an inevitable raw material in modern feed industry. It has obvious effects on strengthening the nutritional value of basic feed, improving animal production performance, ensuring animal health, saving feed cost and improving the quality of animal products.

Classification

1. Bile acid

It can promote fat digestion and absorption, protect liver and gallbladder, improve livestock and poultry health and improve feed utilization.

2. Acidifier

Including citric acid, fumaric acid, lactic acid, acetic acid, hydrochloric acid, phosphoric acid and compound acidifier. Adding an appropriate amount of acidification Qi to the pig diet can significantly improve the daily gain of pigs and reduce the feeding cost.

5. Promote growth

Including olaquindox, pig fast growth, fast fertility, blood polypeptide, liver residue, animal music, fat pig Wang, etc.

6. Trace elements

Including copper, iron, zinc, cobalt, manganese, iodine, selenium, calcium and phosphorus, which can regulate body metabolism, promote growth and development, enhance disease resistance and improve feed utilization. The daily gain of postnatal pigs can generally be increased by 10% - 20% and the feed cost can be reduced by 8% - 10%,

7. Vitamins

It includes vitamins A, D2, e, K3, B1, D3, B2, B6 and C, as well as a variety of vitamins, choline, pig premix additives, vitafat, Ted vita-80, French fat, health care element, strong element, etc. it can be scientifically selected and used according to different pig varieties and different growth and development stages.

8. Amino acids

It includes 18 kinds of amino acids such as lysine, methionine and glutamic acid, as well as Shengbao, livestock treasure, feed yeast, feather powder, earthworm powder, feeding music, etc. the most used additives are lysine and methionine. Adding 0.2% lysine to the diet can increase the daily gain of pigs by about 10%.

9. Antibiotics

Gold toxin, salinomycin, tetracycline, Bacillin, lincomycin, Kangtai feed additive, zhubao, Baosheng, etc.

10. Insect repellent health care

Including anbaoqiujing, keqiu powder, aibao-34, etc.

11. Mildew proof

Due to the high oil content of rice bran, fish meal and other refined feeds, they are easy to oxidize and deteriorate after long storage time. Adding ethoxyquinoline can prevent feed oxidation, and adding propionic acid and sodium propionate can prevent feed mildew. The addition of cinnamon powder not only has strong bactericidal effect, but also attracts food, flavors, and promotes growth.

12. Chinese herbal medicine

Including garlic, wormwood powder, pine needle powder, mirabilite, Codonopsis pilosula leaves, Maifan stone, wild hawthorn, orange peel powder, acanthopanax senticosus, Atractylodes, motherwort, etc,

13. Buffer feed

Including sodium bicarbonate, calcium carbonate, magnesium oxide, calcium phosphate, etc.

14. Seasonability

Including sodium glutamate, edible sodium chloride, citric acid, lactose, maltose, hay, etc.

15. Hormones

Including raw milk record, promoter, yufeiling, etc.

Vitamin A Powder, Lactose Powder, Oxytetracycline Dihydrate Powder, Vitamin D3 Powder

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