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Konjac likes to be warm and moist, the suitable temperature is 20 30, 25 is the optimal temperature, and the suitable relative humidity is 80% 90%, that is, konjac likes a long temperature period and is not suitable for hot and dry places. As early as 3,000 years ago, China has begun to cultivate and use konjac, and there are abundant konjac resources in the hilly areas of southern provinces, Qinling Daba Mountain area, Sichuan Basin, Yunnan-Guizhou Plateau, southern Yunnan and Taiwan. As early as in the "Materia Medica", "Compendium of Materia Medica" and other ancient books, it is recorded that konjac is cold and flat in taste, and can be used to reduce swelling and toxin, and mainly treat carbuncles, swelling and poison, scrofula and other diseases.
1] Konjac is rich in carbohydrates, low in calories, higher in protein than potatoes and sweet potatoes, rich in trace elements, and also contains vitamin A, vitamin B, etc., especially rich in glucomannan, which has the effects of lowering blood pressure, lowering blood sugar, detoxifying and laxative, preventing cancer and supplementing calcium.
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Of course, it is not good, it can be said that the konjac is not ideal soil quality, and the sandy soil should be the best soil, which is the real good soil.
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During the whole development period of konjac, potassium fertilizer is absorbed the most, followed by nitrogen fertilizer, phosphorus fertilizer is the least, and the regular nitrogen: phosphorus: potassium is 6:
1:8。Konjac has different requirements for nitrogen, phosphorus and potassium in different growth stages, and the fertilizer demand is not large in the early growth stage, and the fertilizer demand increases after the konjac is replaced, and the peak fertilizer demand is reached when the tuber is expanded.
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Summary. Hello, I have helped you find the result; When planting konjac, it is necessary to provide an appropriate amount of phosphorus, and phosphorus is a necessary nutrient element for plant growth, and it also plays an important role in promoting the root growth of konjac and the fruiting of flowers and fruits. Therefore, it is recommended to apply an appropriate amount of humic acid and phosphate fertilizer at the same time when planting konjac to improve the yield and quality of konjac.
Hope mine can help you <>
Is it better to use potassium humate or phosphate fertilizer for low fertilizer to grow konjac?
Hello, I have helped you find the result; When planting konjac, it is necessary to provide an appropriate amount of phosphorus, and phosphorus is a necessary nutrient element for plant growth, and it also plays an important role in promoting the root growth of konjac and the fruiting of flowers and fruits. Because of this trouble, Min Yanhu suggested that when planting konjac, an appropriate amount of humic acid and phosphate fertilizer should be applied at the same time to improve the yield and quality of konjac. I hope my bridge barricade can help you <>
Hello, I have helped you find the result; When planting konjac, it is necessary to provide an appropriate amount of phosphorus, and phosphorus is a necessary nutrient element for plant growth, and it also plays an important role in promoting the root growth of konjac and the fruiting of flowers and fruits. Because of this trouble, Min Yanhu suggested that when planting konjac, an appropriate amount of humic acid and phosphate fertilizer should be applied at the same time to improve the yield and quality of konjac. I hope my bridge barricade can help you <>
The effect is better after planting konjac to make low fertilizer, using humic acid and adding some average compound fertilizer. Is it necessary to add some more phosphate fertilizer?
Hello, I have helped you find the result; After planting konjac to make low fertilizer, use humic acid and add some average compound minyan hu fertilizer, you don't need to add phosphorus fertilizer in the bridge, I hope my jujube can help you <>
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Methods of konjac planting: choose the appropriate planting environment, intercropping, timely sowing, reasonable dense planting, and scientific fertilization.
Specific cultivation methods:
1. Selection of planting environment.
Konjac likes to be moist and avoid dryness, so it should be based on land resources with loose soil, good drainage, deep soil, high fertility and good aeration. On this basis, the selected land should be fully plowed to a depth of 40 cm.
2. Intercropping: Konjac is a semi-negative plant, so shading measures are needed. At this time, the natural shading effect can be considered, and in the absence of natural shading, it can be intercropped with tall crops such as corn, which is also a way to solve germination and masking in the case of rational use of resources.
It is understood that when konjac grows more robustly, it is when the budding degree of konjac is as high as one-half.
3. Sow seeds at the right time.
Based on the experience accumulated in history, the sowing date is generally taken at the end of March, and the depth of sowing is about 5 cm.
4. Reasonable dense planting.
There are many varieties of taro, different varieties are different in size, generally white konjac seeds need to choose a weight of 100 to 150 grams, flower color konjac seeds need to choose a weight of 200 to 250 grams. When sowing, it is also necessary to pay attention to several points, first of all, when planting, we need to pay attention to grasp the specifications of reasonable dense planting, for konjac, the entire area of the aboveground part occupies the space is more than 10 times that of the underground tuber plane, and the proportion relationship between the upper part of the leaf area and the underground tuber determines the density of the next seed. In general, the better the quality of the soil, the more fertile it is, and the tubers that are left for planting, so it should be sparse when planting densely, and vice versa, denser.
5. Scientific fertilization.
Konjac is good at growing in an environment with abundant fertilizer, abundant fertilizer can ensure the yield of konjac, and certain principles should be followed when fertilizing, that is, base fertilizer and top dressing complement each other, and farmhouse fertilizer and compound fertilizer have their own uses, combined with each other.
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Konjac is a perennial herbaceous negative plant of the Araceae family Konjac is a shade-loving, moisture-loving, heat-loving, cold-tolerant, and waterlogged crop, with special growth environment requirements and a very limited area suitable for planting.
Scientific fertilization. Konjac is a tuber crop that likes fertilizer and is afraid of barrenness, and needs strong fertility, so it should be mainly farmed fertilizer in fertilization, supplemented by chemical fertilizer, applied foot fertilizer, and applied top dressing early. Fat enough, fat to meet the needs of konjac growth period nutrition, konjac in the growth period of lack of fertilizer, will lead to disease and yield reduction. Konjac absorbs the largest amount of potassium, about 2 times of nitrogen, and the application of sufficient potassium fertilizer can effectively promote the synthesis and operation of carbohydrates, which can strengthen the plant, enhance the ability to fight diseases and drought, and improve the quality.
1) Seed fertilizer: 3000 4000 kg of fully decomposed farmhouse fertilizer per mu, 30 kg of calcium, magnesium and phosphorus fertilizer or general calcium per mu, 10 kg of potassium fertilizer, 20-30 kg of ternary compound fertilizer, half of which is used as the bottom fertilizer of the ditch (pond) and half as the cover fertilizer.
2) Top dressing: 20-30 kg of ternary compound fertilizer and 10 kg of potassium fertilizer should be applied per mu before the konjac leaf is sealed, and the water should be applied or sprinkled at a place about 10cm away from the base of the konjac stem, and the ditch soil should be covered tightly. In the case of insufficient application of base fertilizer, urea as top dressing per mu shall not exceed 10 kg, urea application is too much, the aboveground growth is too vigorous, the leaf color is too green, and the konjac expansion multiple is small, so in the fertilization of konjac, urea is not applied or applied less.
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It is best to apply farmhouse fertilizer, konjac has a long growth period, high yield, and a large amount of fertilizer, in addition to applying sufficient base fertilizer, it should also be topdressed. It can be chased once in the early stage of seedlings to raise seedling fertilizer, and the early and middle stage of the growth of the tree and bulb is 2 3 times, the amount of fertilizer is less before and more after that, and gradually increases, and nitrogen, phosphorus and potassium fertilizers should be applied together. In the later stage, top dressing should be controlled to avoid greedy green and late ripening.
Compound fertilizer was applied per mu of base fertilizer (n:p:k=15:
15:15) 40-50 kg, 100-150 kg of general calcium; After the seedlings are full, they began to apply top fertilization, and compound fertilizer (n:p:) was applied per mu
k=16:10:20) 75-100 kg, fertilization combined with hoeing, soil cultivation, plastic film konjac fertilization to take fertilizer with water.
Or under the premise of applying sufficient base fertilizer, dilute biogas water or manure can be appropriately applied in the early stage, and when the konjac grows to the beginning of June (3-4 leaf stage), 1000 kg of farm fertilizer, 15 kg of potassium sulfate, 50 kg of bio-organic fertilizer, 2 kg of boron-zinc-magnesium fertilizer, and then applied to the side of the box after 30-45 days of heaping. In mid-July before the summer heat (5-6 leaf stage), 25 kg of potassium sulfate compound fertilizer and 15 kg of potassium sulfate per mu are evenly mixed and applied to the compartment surface, shallow soil is covered with fertilizer, and weeds around the field should be pulled out before fertilization. No more fertilization after August.
During the period of rapid expansion of taro (
From June to July), it can be combined with the spraying of bulking hormone and potassium dihydrogen phosphate during the control of pests and diseases, which can promote the expansion of taro and increase the yield. The amount of top dressing in the whole growth period of taro: 20-30 kg of potassium sulfate, 30-40 kg of diammonium phosphate, 60-70 kg of ammonium carbonate.
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Where to put the bottom fertilizer for konjac planting? Come and learn konjac cultivation management techniques.
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Demon Domain is a root crop, it is recommended that you apply farm fertilizer and phosphorus and nitrogen fertilizer.
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Wood chips plus potash! Adopt oh dear.
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No. Konjac growth has environmental requirements:
1. Temperature. The starting temperature of konjac growth is 5, the maximum temperature is 43, and the optimal temperature is 20-25. If the temperature is too low, the effective growth time of konjac is shorter, the annual weight gain multiple is low, and the tubers may suffer frost damage. If the temperature is too high, the konjac leaves are easily burned, resulting in the aggravation of konjac disease and even the death of konjac plants.
Therefore, konjac is not suitable for large-scale cultivation in low-altitude areas with high temperature, nor is it suitable for development in high-altitude areas with abnormally cold climate and insufficient annual effective accumulated temperature. It should be noted that soil temperature (ground temperature) also has a great impact on the growth of konjac, especially in low mountains, where too high ground temperature often leads to poor growth of konjac and even a large number of deaths.
2. Illumination. Konjac is a semi-negative crop, and its light saturation point is low, 2-10,000 lux, which is only half of that of light-loving crops (such as rice). Too strong light not only does not help to increase konjac production, but may cause konjac leaf burns.
Especially in the low mountains, the conversion of strong light into heat energy in summer will make the temperature of the environment (including soil) rise sharply, and the konjac plants (including the root system) exposed to strong light are more susceptible to damage, which will lead to a decrease in resistance and be easily infected by pathogens, which is an important reason why konjac planting in low mountain fields is easy to get sick and difficult to succeed. The light is too weak, although the konjac has a mild disease, but the photosynthesis is weak, the accumulation of dry matter is small, and it is difficult for konjac to obtain high yield.
3. Moisture. Konjac root distribution is shallow, the root aeration tissue is not developed, so it is both moisture-loving and stain-resistant, neither drought nor flood-resistant, needs a moist, aerated and good water retention soil environment, and the most suitable soil water content is 75% of the maximum water holding capacity of the soil. The soil moisture content is too high, which affects the respiration of the roots, and is easy to induce konjac disease, and even causes the death of the whole plant in severe cases.
If the soil moisture content is too low, it is easy to lead to the death of konjac roots, which in turn causes the leaves to wither and the petioles to shrink. Severe drought will also induce the aggravation of konjac root rot, resulting in the early fall of seedlings in the aboveground part in autumn, and the effective growth time is shortened, which is more common in the low mountains with large evaporation, small rainfall and lack of drought resistance conditions, and is also another important reason why the planting of konjac in low altitude areas is easy to fail.
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Where it is planted, it is potted, and it should be wanted.
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The underground part of konjac is a bulb and has a long root system, which is suitable for growing in light sandy soil with deep soil layer, loose texture, good drainage and air permeability, and rich organic matter.
Soil pH has a great influence on konjac yield, and the pH value of most konjac varieties is suitable for planting konjac in neutral and slightly alkaline soils, but the soil with strong acidity and alkalinity is not suitable for konjac growth, especially when konjac is planted in more acidic soil, diseases are more likely to occur.
The konjac production areas in China are mainly distributed in Yunnan, Guizhou, Sichuan, southern Shaanxi and western Hubei, with the most abundant konjac resources in the mountainous areas around the Sichuan Basin. The konjac production area in Sichuan is mainly distributed in the Daba Mountain area in the east of Sichuan, and the Jinsha River valley in the southwest is the most important white konjac production area in the country.
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Konjac is suitable for growing in light sandy soil with deep soil layer, loose texture, good drainage and ventilation, and rich organic matter, easy to harden or poorly drained and breathable soil, not suitable for the growth of konjac, soil pH has a greater impact on konjac yield, most konjac varieties are suitable for pH value, neutral and slightly alkaline soil can also be planted konjac, but the soil with strong acidity and alkalinity is not suitable for konjac growth, especially when planting konjac in acidic soil, diseases are more likely to occur.
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