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Sweet potatoes are nutritious, but they must be fed to pigs properly: four taboos to note
Though nutritious, sweet potatoes must be fed properly: four taboos when feeding sweet potatoes to pigs
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What should be noted when advancing the cotton sowing date?
Can the cotton sowing date really be advanced? Based on many years of cotton sowing practice, the lessons in this regard are very profound. It is true that using plastic film mulching for nutrient-pot seedling raising can also allow sowing in mid-to-late March and produce cotton seedlings in early April, and large-scale demonstrations have been carried out in production, but the result is that management is very difficult, and it is also hard to ensure full stands and strong seedlings. First, cold waves are frequent in early to mid-April, temperature fluctuations are large, north winds occur many times, and it is very difficult to judge when to uncover and cover the seedbed film; second, if continuous rainy weather occurs, it is difficult to ventilate the cotton seedlings on the seedbed, which very easily leads to spindly seedlings and causes cotton seedlings to lodge; third, low temperature and rain also easily induce diseases such as damping-off, anthracnose, and seedling blight, causing patches of dead seedlings in the seedbed; fourth, early sowing prolongs the seedling age of cotton seedlings, forcing them to be transplanted into the field too early. When early-transplanted cotton seedlings encounter cold waves, missing plants and broken rows often result from dead seedlings, generally 10%-20% missing plants, and in severe cases 30%-50% missing plants. In recent years, many new varieties have been introduced in cotton production, especially hybrid insect-resistant cotton, which is relatively expensive. If the area of missing plants is too large, it will not only cause economic losses, but also make it difficult to achieve one sowing, one transplanting, and one full stand of cotton. The planned cotton field area often cannot be realized, and it is even harder to ensure that excellent cotton seed is planted to achieve a high and bumper harvest.
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What issues should be noted when harvesting sweet potatoes?
Sweet potato is a vegetatively propagated vegetative body, with no obvious maturity standard or harvest period, but harvesting too early or too late affects the yield, seed retention, storage, processing and utilization, and crop rotation of sweet potatoes. Harvesting too early will significantly reduce the yield of sweet potatoes; harvesting too late, sweet potatoes are often affected by low-temperature chilling injury, are not resistant to storage, and the drying rate declines. Therefore, sweet potatoes must be harvested at the right time. The suitable harvest period for sweet potatoes should be determined according to climatic conditions, safe storage time, and the arrangement of the following crop. When the ground temperature is around 18°C, the weight increase of sweet potatoes is very small; when the ground temperature is
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Things to note when potting and repotting azaleas
Azaleas should be potted once the cuttings have taken root. For pots, clay pots with good permeability are best, purple sand pots come second, and glazed pots and porcelain pots are the worst. When potting, pay attention to choosing the size of the pot, and never use a large pot for a small seedling. If the pot is too large, the potting soil stays wet for a long time, aeration will be poor, and at the same time the roots can easily fail to reach the pot wall, affecting the development of the seedlings. Generally, for rooted cuttings you can choose a clay pot with a diameter of about 10 cm, and after one year repot into a flower pot of about 15 cm. When potting, pay attention to making a good drainage layer: first cover the drainage hole with a piece of tile, then put
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What nutritional points should be noted when raising piglets in spring and summer?
From March to June, temperatures gradually rise, which is exactly a favorable period for developing pig production. Four issues should be noted in feeding. First, pay attention to temperature changes. In spring and summer, temperatures vary greatly, there is more rain, and humidity is relatively high. Pigs prefer a dry environment, have little fat tissue, and piglets are prone to feeling cold. Therefore, the temperature inside the shed and the dry environment of the pen should be maintained. Second, pay attention to increasing protein feed. Especially for piglets that have undergone long-distance transport, because they are stimulated by wind, cold, and the bumps of vehicles and boats, some piglets
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Seven points to note for preventing miscarriage in doe deer
Miscarriage prevention for deer should begin at mating and end at fawning. To ensure rapid fetal development in deer, the following tasks should be done well for miscarriage prevention. 1. Prevent inbreeding. Inbreeding increases the chances of embryo death and the birth of deformed deer. It also easily causes low viability in fawns, leading to reduced productivity. 2. Strengthen the taming of deer, enhance their docility, and prevent mechanical miscarriage. 3. Improve the living environment of doe deer. Promptly clear snow and ice from the deer shed. Prevent deer from slipping and suffering miscarriage.
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What should be noted when cultivating shiitake mushrooms off-season?
Shiitake mushrooms cultivated off-season can usually fruit in spring; such shiitake mushrooms are of good quality, fetch a high price, and have a good market. To develop shiitake cultivation in the future, the number of off-season crops must be increased, so that supplies are available to the market year-round and economic returns can also be raised. The principles and methods of off-season cultivation are basically the same as those of spring cultivation, but the following four points should be noted: 1. Inoculation season: inoculation should be carried out when the local average temperature is steadily below 10°C. 2. During the spawn-running process, the temperature requirement of 7-13°C should be met as much as possible; spawn running can be carried out in a greenhouse or a single-board machine room (referring to a room with a temperature of 0-13°C).
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Noteworthy specific germplasm of wild apricot (Prunus sibirica) in Chaoyang, Liaoning
Abstract: We surveyed apricot germplasm resources in Chaoyang City, Liaoning Province, and identified 11 specific germplasms, including 3 kernel-use germplasms, 4 landscaping germplasms, and 4 germplasms pending further identification. These new germplasms not only enrich the apricot germplasm resources of Liaoning Province, but also lay a material foundation for breeding new cultivars. Keywords: apricot germplasm, kernel use, landscaping. Chaoyang City, Liaoning Province is one of the main apricot production areas in China, with a long history of apricot cultivation. In the past, local wild apricots were mostly propagated by seed, and the genetic differences of wild apricot at the three levels of individual, stand and provenance were fully differentiated and accumulated.
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Key points to note during the fruiting period of shiitake mushrooms: regulation of temperature and humidity differences
Increase the day-night temperature difference. In late autumn and early winter, daytime temperatures are high and nighttime temperatures are low. Cover with a layer of film during the day so that the temperature inside the mushroom bed is 2°C-3°C higher than outside the film, then open the film after 10 p.m. so the temperature drops rapidly. After several consecutive days, a large number of primordia will emerge on the surface of the mushroom logs and develop into mushroom buds. Control the humidity of the mushroom yard. After color change, initially maintain the relative humidity of the mushroom bed at about 85%. As large numbers of mushroom buds differentiate into caps and stipes, lower the air humidity to about 80%. Create a suitable dry-wet difference. In the early stage of autumn mushrooms, the internal water content of the mushroom logs is relatively sufficient and can safely
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Detailed Explanation of Points to Note When Mixing Substrate for Substitute-Material Cultivation of Shiitake Mushrooms
Substitute-material cultivation of shiitake mushrooms is another cultivation method following log or round-wood cultivation. Its cultivation forms are diverse, mainly designed according to differences in cultivation conditions, cultivation materials and cultivation containers. It has developed rapidly in recent years and now accounts for more than 95% of the cultivation area. In its medium, materials rich in cellulose, lignin and hemicellulose, such as wood chips, crop straw and wild grasses, are used as the main components of the cultivation material, appropriately supplemented with auxiliary materials such as wheat bran and rice bran rich in organic matter and vitamins, as well as gypsum, calcium carbonate and similar substances containing inorganic salts. The water content is adjusted to around 60%, and after sterilization it is inoculated and cultivated.
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