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What are the key technical points for post-harvest management of jujube trees?
1. Apply fruit-harvest fertilizer well. Apply fruit-harvest fertilizer once 3-4 days before harvest or 5-7 days after harvest. Generally apply 50-60 kg of organic fertilizer per jujube tree, applying it by the trenching method at the base of the main trunk of the jujube tree, and cover with soil immediately after application. 2. Spray quick-acting fertilizer. Immediately after harvest, spray 0.3-0.4% urea solution and 0.4%-0.5% potassium dihydrogen phosphate solution on the leaves to avoid leaf drop, improve photosynthetic efficiency after harvest, accumulate and increase tree nutrients, promote more flower bud differentiation, and reduce
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Methods and Technical Key Points for the Fresh-keeping and Storage of Jun Jujube
Red beauty, nourishing life. For thousands of years, red jujube has been regarded as an excellent product for beautifying the complexion, resisting aging, and promoting longevity, and it is also one of the important food sources for the survival of people in jujube-growing areas and for getting through famines. Red jujube is different from ordinary dried and fresh fruits; it combines medicinal, health-care, and edible functions in one. As a rare fruit and the "king of vitamin C," Jun Jujube, as one of the four famous jujubes of Shanxi, is favored by consumers for its unique shape, deep red color, thin skin and thick flesh, small pit and large fruit, and crisp, sweet, fragrant taste. According to measurements, every 100 g of fresh Jun Jujube contains sugar
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Control Methods and Technical Key Points for the Jujube Mealybug on Jujube Trees
(1) Manual and physical control. Bark scraping: During winter and early spring, scrape off the old coarse bark on the trunk, branches and forks and burn it in a centralized manner; spray the whole tree with 3-5 degrees Baume lime sulfur mixture, or apply a sticky insect glue ring about 1-2 cm wide on the main trunk and branches, to prevent the insects from climbing up the tree and from moving from concentrated overwintering branches to non-concentrated overwintering branches to cause damage, and to trap and kill some of the pests. (2) Chemical control. The application time should be chosen during the peak hatching period of the newly hatched nymphs, generally from late May to early June, early to mid-July, and early September. The selected pesticides include: 25% buprofezin
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Cultivation Methods and Technical Key Points for Intercropping Garlic in Cotton Fields
When garlic is intercropped in cotton fields, each mu can produce 93 kg of lint cotton and 1,300 kg of garlic, with a benefit of about 3,300 yuan per mu. 1. Cotton: Use insect-resistant hybrid cotton varieties such as Kemian No. 3 and Kemian No. 6. Before sowing, deeply plow the land 25 cm, and together with plowing, apply 3,000 kg of decomposed livestock and poultry manure and 60 kg of potassium sulfate compound fertilizer per mu. Broadcast 2-3 kg of 5% phoxim granules per mu to control underground pests. The suitable sowing period for cotton in Pizhou City is around April 3. Seize sunny days to raise seedlings in double-film nutritional pots. Prepare about 3,000 pots per mu of field. After watering the seedbed thoroughly, sow dry seeds, 1 seed per pot. About 0.35 kg of coated cotton seed is needed per mu of field. After full emergence, ventilate promptly to reduce humidity and control pests and diseases, and cultivate strong seedlings. Transplant around May 12 when cotton seedlings are at the 4-leaf stage, using equal-row spacing with a row spacing of 1.2 m and a plant spacing of 33 cm, planting about 1,700 plants per mu. In mid-to-late May, together with hilling, apply 15-20 kg of urea, 50 kg of superphosphate, and 20 kg of potassium chloride per mu. Around July 20, apply flower and boll fertilizer according to cotton growth, with 30 kg of urea and 15 kg of potassium chloride per mu. In early August, apply topdressing for boll development, with 7.5-10 kg of urea per mu. Pay attention to spraying trace element solutions such as boron fertilizer and monopotassium phosphate. Use mepiquat chloride for chemical regulation 4 times: 1-1.5 g per mu at the full bud stage, 2-2.5 g per mu at the early flowering stage, 3-4 g per mu at the full flowering stage, and 3-5 g per mu after topping. Top around August 6. Pay attention to controlling the third generation of cotton bollworm, cotton aphid, mirids, red spider mites, tobacco whitefly, and other pests. Pull up cotton stalks in mid-November.
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Technical Recommendations for Mid-to-Late Stage Rice Management in Arid Regions
The perennial rice planting area in Qina Town, Yongsheng County is 16,000 mu. As of June 6, the entire town has achieved full transplanting by relying on reservoir water storage and water lifted from Chenghai Lake for irrigation. However, due to the historically rare drought from September last year to July 19 this year, rice seedlings in parts of the town with no water sources and no mechanical wells have withered, and even areas with small water sources and mechanical wells for pumping irrigation find it difficult to guarantee timely irrigation, resulting in insufficient rice tillering. In response, the following management measures are recommended for mid-to-late stage rice management across the town. 1. Adapt measures to local conditions, implement
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Processing Methods and Technical Points for Mantis Shrimp
Mantis shrimp is also called shrimp crawling child, scientific name Oratosquilla oratoria. The body is flat, the pleopods and tail fan are well developed, the carapace on the front part of the body is very thin, and the rear part is thicker, the rostrum is not prominent, the carapace is wide and round, the first pair of thoracic legs is pincer-like, asymmetrical, with sexual dimorphism, and there are two protrusions on the inner margin. Mantis shrimp is the main bycatch of fixed nets in the Bohai Sea, with the spring fishing season from April to July and the autumn fishing season from October to November. It can be processed into frozen boiled mantis shrimp with shell and frozen boiled headless mantis shrimp. I. Processing of frozen boiled mantis shrimp with head 1. Quality conditions:
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Detailed Explanation of Key Technical Points for Lambing Assistance in Spring
Every year in February and March, it is the peak season for ewes giving birth. To assist ewes during lambing, four key points must be mastered: First, pre-lambing preparation. At this time the weather is turning warm but still cold, so a lambing room must be prepared before the ewe gives birth, keeping the temperature above 5°C, and disinfecting with 2%-4% Lysol solution or 15%-20% wood ash water. The floor of the lambing room should be covered with dry grass or sand to keep it dry. At the same time, some disinfectants (such as alcohol, iodine tincture, etc.) and other tools should be properly prepared. Second, normal delivery. When the ewe goes into labor, the lamb first
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Detailed Explanation of Key Technical Points for Increasing Spring Tea Yield and Improving Quality
Delaying light pruning: Conventional light pruning of the tea canopy is carried out from December in winter to February of the following year. Practice has shown that doing so has three drawbacks: first, the branches are prone to frost damage after pruning; second, the overwintering buds are cut off, delaying the sprouting time of spring buds; third, the nutrients already accumulated in the branches on the tea canopy surface are cut away, affecting the sprouting vigor of spring buds and the growth of thick strong branches, ultimately affecting spring tea yield and quality. Therefore, the pruning time should be after the frost period, preferably so that the first spring tea can be picked 30 to 40 days after pruning. Advancing topdressing: Conventional topdressing is mostly carried out in early to mid-March, when spring buds
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Technical Service Information for Tea Plant Frost Resistance and Post-Disaster Recovery
I. Remedial measures for tea plants after a disaster: 1. Scientific pruning: Because tea gardens with different varieties, different altitudes, and different slope aspects have different degrees of frost damage to their tea plants, generally tea gardens with large-leaf varieties, high altitude, and north-facing slopes suffer more severe frost damage to the tea plants. Timely and reasonable pruning should be carried out according to the degree of frost damage. After the temperature rises and stabilizes, observe the frost damage to the tea plants. For lighter frost damage, use light pruning, that is, cut about 3 cm below the leaf surface. For more severe frost damage, carry out deep pruning, cutting off 1/2-1/3 of the plant. For particularly severe frost damage
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Pruning Methods and Technical Points for Aging Tea Plants
1. Heavy pruning: Heavy pruning is suitable for semi-aged tea plants and for tea plants that decline before their time; their age is not necessarily very great, and most main branches still retain a certain capacity for growth. For such tea plants, heavy pruning can be carried out to renew and rejuvenate them, generally cutting away 1/3 to 1/2 of the canopy. 2. Frame cutting: For very aged tea plants, even increased fertilizer application can hardly raise yields. Such tea plants are better renewed by frame cutting, that is, around Great Cold (Major Cold) sawing (or cutting) off all branches and trunks at a height of about 15 cm above the ground and regrowing the bush. Tea plants subjected to frame cutting or heavy pruning should all be treated on the basis of deep plowing and sufficient basal fertilizer.
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