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Staged Selection and Retention Methods and Technical Points for Replacement Gilts
Staged Selection and Retention of Replacement Gilts
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Sunflowers damaged by the white-spotted flower chafer: how to control them effectively?
Damage characteristics: Adults feed on the flowers of sunflowers, corn, vegetables, and fruit trees. When damaging corn, adults feed on the silks; when damaging sunflowers, they feed on the flower heads, causing the heads to rot. Morphological characteristics: Adults are 17-24 mm long and 9-12 mm wide. Oval-shaped, with a bronze or copper-green luster, and the body surface is scattered with numerous irregular white felt spots. The clypeus...
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Large space in the cucumber patch means reasonable intercropping can bring high yields, but planting the wrong vegetables together leaves both sides damaged
It is time to sow autumn cucumbers again. Cucumbers have always been a vegetable deeply loved by friends, especially in summer when cold cucumber salad is very refreshing. Cucumbers are also rich in nutrients, full of protein and vitamins, and clear heat and detoxify...
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How should apricot trees be managed in winter to achieve high yields?
How should apricot trees be managed in winter for high yields? Please explain in detail. In winter, apricot trees can be managed by referring to the following methods: Pruning and shaping: Winter pruning of apricot trees is especially important. The focus is on removing diseased and weak branches and dead, dry branches to encourage flower buds to form as early as possible. At the same time, according to the terrain, the tree shape should be made favorable for sunlight, and its angles should be opened up for ventilation. After pruning...
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How should chestnut trees be managed to achieve a high yield?
How should chestnut trees be managed for a high yield? Please give guidance. Chestnut trees can be managed by referring to the following methods: 1. Fertilization. In spring, before flowering, apply 300-400 g of urea and 200-300 g of superphosphate per tree, and broadcast 6-7 g of borax per sq m of ground. In July, during the fruit burr swelling stage, apply fruit-swelling fertilizer and a three-element compound fertilizer at 0.7-...
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How should chestnuts be planted and managed to achieve a high yield?
How can chestnuts be made to yield heavily? Please explain the methods. To make the chestnut trees you plant yield heavily, you can refer to the following methods: 1. Close planting. Reasonable close planting can not only increase early yields and obtain economic benefits as quickly as possible, but also facilitate intensive management of the orchard. Planting density: the spacing between plants and rows is generally 2m x 4m, 3m x 4...
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How should dragon fruit be managed after planting?
How should dragon fruit be managed after planting? Please explain the management methods. Post-planting management of dragon fruit has a great impact on seedling survival rate and growth, and directly affects early fruiting and high yield. Post-planting management mainly includes the following aspects: 1. Soil, fertilizer and water management. After dragon fruit is planted, water once every 3 to 5 days. Once it survives, adjust the watering frequency as needed. Although dragon fruit stems have a relatively thick epidermis and strong drought tolerance, if irrigated regularly when winter temperatures are relatively low, it grows extremely quickly. Fertilizer can use liquid fertilizer that promotes the growth of branches and leaves, applied 2 to 3 times per week, to promote branch growth. When growing seedlings in pots, fertilizer can be applied once survival is confirmed. Compound fertilizer can be used, but it must not be applied too much to avoid fertilizer damage. Applying organic fertilizer has a better effect. If human urine is used, it needs to be left to stand for 10 days, diluted 10 times, and then applied. Fertilization once or twice a month is appropriate.
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How should bitter melon be managed during cultivation to achieve high yields?
How should bitter melon be managed during cultivation to achieve high yields? Please provide an introduction to the management methods. The bitter melon root system prefers moist conditions and dislikes waterlogging. Normally, care should be taken to dig drainage ditches clear, and if a rainstorm occurs, standing water in the field should be drained promptly. Water use can be adjusted according to soil moisture conditions. Generally, on sunny days with strong sun and high evaporation, moisture disappears quickly,...
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How should osmanthus be managed when kept in an apartment building?
How should osmanthus be managed when kept in an apartment building? Please provide guidance on methods. For urban residents living in apartment buildings, cultivating osmanthus is very difficult, mainly because after osmanthus is transplanted from its native habitat to the city, its growing environment and conditions undergo great changes. Therefore, necessary measures must be taken in the cultivation and management of osmanthus...
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How should cherry tomatoes be managed at each stage of cultivation?
How do you manage small tomatoes at each stage of cultivation? Please give a detailed introduction. For managing small tomatoes at each stage of cultivation, you can refer to the following methods: seed soaking, germination, sowing: soak the seeds in clean water for 4-6 hours, then disinfect with 800-fold chlorothalonil for 10-15 minutes (stirring constantly), then rinse with clean water, put them into a sand cloth bag...
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