-
What nutrients does the pig's body need (Part 1)
Mastering the nutrients needed by the pig's body and the content and functions of various nutritional components can promote the pig's growth and development, enhance its disease resistance, regulate the pig's normal physiological functions, improve the level of pig production and reduce production costs. The nutrients that sustain the life of the pig's body are substances such as protein, fat, carbohydrates, minerals and vitamins. Various nutrients have different functions, which are briefly described as follows. (1) Protein Protein is the main component that makes up the various tissues and organs of the pig's body, such as skin, muscle, blood, internal organs, bristles and hooves
-
Potato Nutrient Pot Seedling Cultivation and Early Spring Greenhouse Cultivation Techniques
Potato under the long-term traditional cultivation model has a prominent phenomenon of high yield but low efficiency. Therefore, in recent years a new method of nutrient pot seedling cultivation and planting through plastic greenhouses has emerged, and good economic benefits have been achieved. 1. Cultivated varieties should be selected from early-maturing, low-temperature-tolerant, relatively high-yielding varieties, such as Dongnong 303 potato, which has stable quality and a growth period of about 90 days. 2. Land preparation and fertilization: in the autumn of the year before cultivating early spring potatoes, apply 6000 kg of decomposed farmyard manure and potassium sulfate per mu in the greenhouse.
-
Detailed Explanation of Nutrient Uptake Patterns of Rice at Different Growth Stages
The nutrient uptake of rice at various growth stages differs considerably depending on the type. Double-season rice has a short growth period, especially the shortened vegetative growth period in the field, so vegetative growth and reproductive growth overlap shortly after transplanting. That is, tillering in the field begins at the same time as panicle differentiation, and the peak tillering stage occurs during panicle differentiation, thus forming a prominent nutrient uptake peak 2 to 3 weeks after transplanting; single-season rice forms two nutrient uptake peaks 2 to 3 weeks and 7 to 9 weeks after transplanting. The uptake rates of various nutrients by rice all reach
-
What are the control methods for soybean nutrient deficiency?
Soybean micronutrient deficiency shows as follows: in spring soybeans, nitrogen deficiency causes the true leaves to turn yellow, and yellowing can spread from bottom to top; on the compound leaves there are parallel continuous or discontinuous iron-colored patches along the veins, and chlorosis spreads from the leaf tip toward the base until the whole leaf is pale yellow and the veins also lose green; the leaves are small and thin and fall off easily, the stems are slender, and the lower leaves of the plant are dark green, thick, uneven, and long; when sulfur deficiency is severe, the veins are yellowish-brown, and later the whole leaf turns yellow. Potassium deficiency causes leaf yellowing, with symptoms developing from the lower leaves to the upper leaves; chlorotic spots first appear at the leaf margins, then
-
Detailed Explanation of Rice Paddy Soil Types and Nutrient Status in Sanming City
Our city has relatively abundant land resources, with a total land area of 34.44 million mu, of which cultivated land area is 2,563,100 mu, accounting for 7.4% of the total land area (of which paddy field area is 2,441,900 mu, accounting for 7.1% of the total land area, and agricultural land is 121,200 mu, accounting for 0.3% of the total land area). Due to differences in distribution terrain, paddy soils can be divided into four types: plain fields, sloping terraced fields, mountain valley fields, and streamside fields, with a ratio of 4.6:5:6.2:1 among them. Plain fields are dominated by hydromorphic
-
What nutrients are essential for soybean growth and development?
Soybeans require large amounts of nutrients in many different forms. For the same yield, soybeans need 4-5 times more nitrogen than cereal crops. The main nutrients they require are the three major elements nitrogen, phosphorus and potassium, followed by 9 trace elements including calcium, magnesium, sulfur, magnesium, boron, molybdenum, manganese, zinc and copper.
-
Goji greens are a nutrient-rich health vegetable.
Goji greens, also known as goji tips, gouya zi, or sweet beet tops, are the tender shoots and young leaves of the goji plant. Goji berries are sweet in taste and nourishing in nature, with functions of tonifying the kidneys, moistening the lungs, producing vital essence, boosting qi, supporting yang, replenishing deficiency and fatigue, strengthening tendons and bones, dispelling wind and improving eyesight, and resisting aging. Modern pharmacological experiments have shown that long-term consumption of goji berries can enhance human immunity, inhibit the growth of cancer cells, and produce a clear blood-enriching effect. Li Shizhen's "Compendium of Materia Medica" listed goji as a top-grade substance in the classic materia medica, specifically stating: "Leaves gathered in spring are called Tianjing Cao; flowers gathered in summer are called Changsheng Cao; fruits gathered in autumn are
-
How to handle nitrogen and iron deficiency in lilies? Nutrient management methods
Symptoms: The mesophyll tissue between the veins of young leaves turns yellow-green, especially in fast-growing plants. The greater the iron deficiency, the yellower the leaves become. Cause: Iron deficiency is most likely in calcium-rich soil (high pH), silty soil and soil with excessive water. If the soil temperature is too low, iron deficiency can also occur. Iron deficiency is caused by the plant lacking absorbable iron. If the yellowing is only slight, it can recover to normal by the harvest period. Lily groups and varieties sensitive to iron deficiency include Oriental hybrids and Lilium longiflorum (Easter lily) hybrids
-
Detailed Explanation of the Short-Cutting Cutting Propagation Technique for Tea Plants in Nutrient Bags
The short-cutting cutting propagation technique for tea plants in nutrient bags is the process of using nutrient bags to directly insert short cuttings and cultivate plants. This asexual propagation method can effectively maintain the characteristics of the mother tea plant, produce offspring with uniform traits, help cultivate strong seedlings, avoid damaging the root system during transplanting, and effectively increase the survival rate. However, the seedling propagation technique is demanding, and the process is relatively complicated; if not mastered well, it can easily lead to failure. The following technical points should be noted in seedling propagation: 1. Build a shade shed. The shade shed has the functions of sun protection, wind protection, and frost protection. It is an important part of the success or failure of nutrient bag seedling propagation. Shade
-
Seven methods of applying nutrient solutions to increase oyster mushroom yields
1. Sucrose and calcium carbonate phosphate mixed solution: sucrose 1%, calcium carbonate 1%, potassium dihydrogen phosphate 0.1%. Use when the mycelium has covered the mushroom bed and before fruiting bodies appear. 2. Urea and citric acid mixed solution: urea 0.5%, citric acid 0.1%, adjust pH to 7 with sodium hydroxide. Use after the first flush of mushrooms is harvested. Using it after the second flush is not effective and instead hinders oyster mushroom growth. 3. Sugar, urea and citric acid mixed solution: sucrose, citric acid and urea 1% each, adjust pH to 7. Same
条件筛选