Kudingcha is cold, detoxifying, bactericidal and anti-inflammatory, and its taste is bitter and sweet. It is a rare health drink and medicinal plant. The development of Kuding tea has high economic benefits. Its dwarf dense planting high-yielding cultivation techniques are as follows:
(1) The selected land and site preparation Kuding tea plantation should select low-lying, back-north wind and back-west sun valleys or slopes, requiring thick and fertile soil, slightly acidic or neutral loam and sandy loam between ph6.5 and 7. . The whole raft or raft shall be leveled and the gutters shall be well opened; trenches shall be digging at 1.2m spacing, 70cm in width, 70cm in depth and 20-30m in length. Apply sufficient amount of soil miscellaneous fertilizer in the ditch, mix and backfill with soil, backfill about 10 cm above the ground.
(ii) Planting 1111 strains per acre with a height of 1.2 meters and 0.5 meters from the planting height. When planting, take a 30-cm deep hole in the center of the ditch, remove the Kuding tea seedlings from the nutrition bag, place them in the center of the pit, let the roots stretch, cultivate the soil (the root system can't touch the basal fertilizer), compaction, and pour enough water. Cover shading for 10 to 15 days. Planting time should be selected from March to April.
(3) To force dwarf kudingcha to survive after the shoot reaches a height of 40 cm, timely topping buds should be promoted to promote branching and forced dwarfing. At the same time, cytokinin hormones can be used to promote lateral bud germination. Branches of 10 to 15 cm are to be topping, and the branches are erected so that the branches are 30 to 40 degrees apart. After 4 to 6 prunings, the purpose of forced dwarfing can be achieved within one year.
(d) Strengthen management After the planting, the soil should be kept moist and loose, and weeding and weeding should be carried out frequently. After survival, thin application of human excreta or 0.5% urea plus 0.2% potassium dihydrogen phosphate, followed by fertilization once every 15 days. The pests and diseases were found to be sprayed and prevented in a timely manner. It was also possible to spray once 0.3-0.4 Baume degree lime sulfur to control pests every 20 days. In summer, Kudingcha grows slowly, leaves are prone to burns, and the function of the leaves declines or even falls off. A simple bamboo and wood shed (4 to 6 meters high, 4.8 meters wide and 20 to 30 meters long) can be placed every 4th row. The shade is 45% to 60%. Kudingcha showed freezing injury when the temperature was lower than 2°C. When it was cold from the middle of December to the end of February, it could be insulated and moisturized by plastic greenhouses. However, it was necessary to open two doors for ventilation and cooling in sunny days, and cover straw insulation on frosty evenings.
(5) Reasonably picking Kudingcha can be picked multiple times throughout the year, but it must be reasonable, timely and appropriate. The principle of picking is: saplings are mainly cultivated, and plastic surgery is supplemented; The general tip is multi-picking, with little shoots and low shoots; The tip of the tip leaves are picked, but the leaves are not taken at the end. Tea picking should be followed by cultivating, weeding, fertilizing and spraying.
New knowledge of biogas slurry raising pigs ---- Liu Qingyue
Biogas slurry contains a variety of substances that are beneficial to pig growth, such as amino acids, zinc, iron, copper, and vitamin C, B2, etc. It is a very good feed additive. It has been estimated that the appropriate addition of biogas slurry to conventional feeds can increase pigs’ average weight gain by more than 15%, and it can also significantly reduce the incidence of epidemics. Feeding pigs with biogas slurry is simple and safe to use. The specific methods are as follows:
1. During the piglet stage (with a body weight of 25 kg or less), after a routine method of epidemic prevention, insect repelling, stomach building, and castration (ie, castration), a small amount of biogas slurry is added to the feed to cultivate the palatability of the piglets; about 10 days After that, it can be fed 4 times a day, 0.5 kg each time.
Second, shelf pig stage (body weight 25-50 kg), at this time the pig bone development, the amount of biogas slurry should be increased accordingly. Usually 3-4 times a day, each 0.75 to 1 kg, such as adding a small amount of bone in the feed, fish meal, more obvious weight gain.
Third, the fattening stage (weight 50-100 kg), during this period the pig is fully developed, the amount of biogas slurry should be increased to 1-1.5 kg each time, 3 times a day. Fourth, when the weight of a pig reaches more than 100 kg, the weight gain rate will decrease. This stage can be added at a rate of 1.5-2 kg of biogas slurry each time, three times a day.
Adding biogas slurry to pigs should pay attention to the following matters:
1. Sick, non-producing or biodegradable biogas fluids are prohibited from feeding pigs.
2. The newly-built or large-scale reclaimed biogas digester must be used normally for 1 month before the biogas slurry is fed to pigs. The biogas slurry is best extracted from the middle of the discharge chamber.
3. After the biogas slurry is taken out, the ammonia should be allowed to evaporate, and it is usually left for about half an hour before feeding.
4. Biogas slurry is only an additive and cannot be used as a substitute for conventional feeds. Only on the basis of satisfying the requirements of pig diets, can biogas slurry be added to show the effect.
5. In the course of feeding with biogas slurry, if the pig has diarrhea symptoms, it should immediately stop feeding until the symptoms disappear, and then resume biogas slurry feeding.
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