Can taro be grown at latitude 27 degrees?

The Demon Domain can also be planted at 27° latitude, and the planting requirements and environment for it are not very large.

1.Soil selection and land preparation.

Konjac likes a warm, moist, semi-shaded growing environment, and has very strict requirements for soil, so it should be planted in slightly acidic or neutral humus soil with fertile soil and good drainage conditions, and the pH value of the planting soil is better maintained between 6-7. The planting site should be in a cool and ventilated place, preferably with shade, or with shelter to block the sun. After choosing the planting land, the land should be deeply turned to a depth of about 40 cm.

2.Sowing and propagating.

Konjac is generally propagated by sowing taro, and the taro should be treated before sowing to prevent the invasion of pathogens and improve the survival rate. September is a good time for sowing, generally using the method of strip sowing, with a depth of about 5 cm. Be careful not to let the taro come into contact with the fertilizer when sowing.

3.Field management.

Konjac likes fertilizer, and the fertilization is mainly fermented farmhouse fertilizer, supplemented by chemical fertilizer. In addition, it is necessary to pay attention to timely topdressing, as the lack of fertilizer during the konjac growth period will lead to an increase in the probability of disease and a decrease in yield. Konjac is drought tolerant, as long as it is watered several times in the seedling stage, there is basically no need to water in the rest of the period, and it should be noted that the drainage measures in the rainy season should be done well to avoid tuber rot.

Precautions for konjac planting.

1.Soil conditions.

Konjac is not suitable for planting in plots with clay soil, so you must pay attention to choosing yellow or purple soil and sandy soil and sandy soil, otherwise the survival rate of konjac will be very low. In addition, it should be noted that continuous cropping is not allowed, nor can it be planted on land where the previous crops were continuous crops, even if the previous crops were peppers and tobacco.

2.Planting temperature.

The konjac grows at a temperature of about 15 degrees Celsius, and the sowing time is in April every year, usually about 25 days for budding, and transplanting is completed in mid-May. During the planting process, it is better to keep the temperature in the field between 13-18 degrees.

3.Planting density.

The planting density will also affect the growth of konjac, an average of about 3,000 konjac plants can be planted per mu, and each mu can not exceed 4,000 plants.

4.Fertilizer and water management.

When planting konjac, apply sufficient base fertilizer as much as possible, and do not carry out top dressing. Watering is also different from other crops, just water enough water at the seedling stage, and then reduce the number of watering as much as possible, which is more conducive to its growth. In addition, konjac is a coarse crop and does not require much field management.

Wet places should be watery but not flooded.

Cultivation techniques.

Large-scale cultivation and intercropping of corn, with a plant spacing of about 1 foot and a hole depth of more than 6 inches. Farmers plant sporadically, mostly use straw to weave into grass nests, put them in holes, and sow taro in grass nests. The more organic fertilizer, the more conducive to the growth and development of the bulb, and the higher the yield.

Grinding taro is sown directly into the ground from late February to mid-March every year, with a main bulb or sub-bulb per hole, and the bulb with flower buds must not be placed in the ground. Where the bulb protrudes, the apical buds are early and extraordinarily large, it is possible to form flower buds.

It is not easy to form flower buds when the taro is born. In order to prevent taro from rotting after sowing, all wounds are covered with plant ash. It is more suitable to plant taro with 3 doubles.

When the soil temperature rises above 15 (late April or early May), the young shoots can break through the soil and grow. 5 In June, the nutrients of the planted taro grow and take root, and after June, the new taro is formed by absorbing the nutrients in the soil. Apply the first top dressing after mid-June; After mid-July, apply the second top dressing; August and September are the period of vigorous growth.

It is necessary to add an appropriate amount of P and K fertilizer in top dressing, which is conducive to the rapid growth of bulbs; Nitrogen fertilizer should not be too much, too much will make the leaves and stems grow. In order to avoid injury to the stem rot, top dressing should not touch the bulb, and the general farmhouse fertilizer will no longer fertilize after the bottom fertilizer is applied sufficiently. The flesh quality of grinding taro is adventitious and the roots are developed, and the weeding should be early and shallow.

Cultivating combined with soil cultivation is conducive to the growth of bulbs and grape stems.

Land selection and land preparation. Konjac is resistant to acid and humidity, and the most suitable soil pH value is. Therefore, it is necessary to choose a deep, loose and breathable soil with acidic soil for planting. It is not advisable to choose heavy clay blocks.

Before planting, the land should be deeply turned, and the ditch should be opened from top to bottom, the width of the ditch is 25 cm, and the depth of the ditch should not accumulate water. Konjac is born, it is best to implement crop rotation, continuous cropping can not exceed three years, the number of years planted in the same place, the nutrients required by konjac can not meet the requirements, pests and diseases are aggravated and the growth is poor, and the yield declines.

In order to achieve high yield of konjac, it is very important to choose excellent konjac for seeding. The criteria for selection are: flat upper port, small sockets, no pests and diseases, not old taro in the next year, and remove the shelled konjac that has not rotted in the first year.

Divide into several grades according to size, and plant the same grade together, so that it is easy to arrange the density and later cultivation management.

The planting time of Tianba Township, Zhaoyang District, Zhaotong District, Yunnan Province is suitable for planting in early March, which is the same as the planting time of artichoke, which is easy to cause frost damage too early, and will affect the growth of seedlings due to the depletion of taro nutrients too late. Earlier planting is possible below 1,700 meters above sea level. Most farmers in our township plant small taro in the ground while harvesting after autumn, which is conducive to reducing the damage of taro, but is not conducive to fertilization and standardized planting and management.

I want to plant taro, can I support the seedlings?

Introduction: The traditional artificial planting and harvesting mode has inhibited the development of konjac industrialization. In order to speed up the development speed and process of this industry, promote the construction of new countryside and economic development, the promotion of konjac mechanized planting and harvesting technology has become a top priority.

This paper briefly describes the key points of konjac mechanized planting and harvesting technology, in order to promote the development of konjac mechanization industry.

Since the 80s of the 20th century, China's konjac has started the development of industrialization, and in recent years, under the dual promotion of strong policy support and market demand, many growers have begun to expand the scale of planting, but so far, konjac is generally planted artificially. With the development of China's market economy, a large number of rural labor force has been transferred to the city, resulting in an increasing proportion of labor costs in vegetable production costs, and it is difficult for farmers to continue to do intensive farming, and the level and efficiency of vegetable output have declined. According to the survey, the number of labor force engaged in agricultural production in China has dropped from 70% in 1978 to about 35% at present[1].

According to the survey in recent years, 40 pieces of labor are required to produce 667 m2 of konjac, about 3 200 yuan. Therefore, it is of great significance to improve the cultivation methods and optimize the management measures, adopt the mechanized planting mode, and establish supporting technical regulations, which are conducive to reducing labor intensity and production costs, and are of great significance to promote the reasonable transfer of labor, stabilize the planting area of konjac, and improve the yield and quality of konjac.

1. Land selection and land preparation.

Water and dry river land, terraced land, and hilly land with a slope of less than 8° should be selected to be planted on relatively flat terrain and with a certain scale, which is conducive to mechanized operation [2]. With loose soil, fertile soil (containing organic matter), alkaline hydrolyzable nitrogen 200 300 mg K

The quality of konjac planting harvest has a lot to do with climate, technology and field management in planting, in addition, it is believed that the quality of konjac seeds is the most fundamental reason for affecting konjac harvest. So how do you choose the right konjac seeds?

Konjac seeds refer to konjac less than 300 grams, and it should be noted when buying that there are germs, broken ones, and those that are too small. However, konjac itself is not strong in disease resistance, which can easily lead to planting failure.

A generation of konjac seeds refers to annual seeds, small seeds grown from maternal spores, like tadpoles with tails, with specifications between 5 20 grams, generally 100 120 kg per acre, and 12,000 plants can be planted 14,000 plants.

A generation of konjac seeds grows and can grow up to 200 300 grams a year.

The yield per mu is between 2400 and 4200kg.

The second generation of konjac seeds is the first generation of konjac seeds.

Seeds that have grown for one year have two years of life.

The second generation species has bud nests, which have the effect of protecting fresh buds.

The size is between 50 and 300 grams, and the amount of seeds required varies according to the size of the konjac seeds.

Generally 300 500 kg.

The yield per mu is 4000 6000 kg.

Seed selection. 1. Genetically modified seeds cannot be used.

2. Seeds that have been disinfected with chemical pesticides cannot be selected.

3. 2-year-old bulbs of conventional konjac cannot be used.

4. The selected seeds should not be mixed with other items during the digging, storage and storage of the farm.

5. The selected taro should have full buds, no damage and pest damage, good appearance, and good touch to the bulb.

Analysis of planting failure factors.

Climatic factors. Konjac has high requirements for the growth environment, altitude, temperature, soil pH must be controlled within a certain range, so usually local planting is the best choice for local planting, do not blindly develop in unsuitable areas, konjac growth environment can not be changed by manpower.

Soil factors. Konjac is suitable for growing in soil layer of more than 30cm, fertile, rich in organic matter, air permeability, water retention, fertilizer retention, good drainage, neutral pH value of soil, loam or gravelly clay loam is the best. Sandy soils with poor water retention and soils that are too sticky and have poor drainage and aeration are not suitable.

Topographic factors. Konjac planting is generally selected in the sloped and leeward area with mutual shade or tree shade, half shade and half sun, high air humidity, water source for irrigation, good drainage, and heavy rain in summer will not cause serious soil erosion. Konjac is suitable for growing in areas with a temperature of about 25, if the temperature is relatively low and the growing season is short, it is advisable to choose a sunny slope to get enough sunshine to increase yield.

Natural disaster factors.

Excessive rain can lead to cracking of the bulb skin, leading to soft rot, which can lead to rot in the field or during storage, reducing yield and quality. If the climate is too dry or too humid after emergence, it will also cause a large area of yield reduction.

Planting steps.

When sowing, open a ditch and plant it, open a ditch 6 inches deep, a foot wide, then put mixed fertilizer, and then cover a layer of fine soil on top of the mixed fertilizer, put konjac seeds on the soil, the bud mouth is up, put weeds on the taro seeds, and finally cover 2 3 inches of soil, place weeds to do fertilizer planting, must be watered thoroughly, once a week, until the rain lands. The temperature rises above 12 and begins to sprout, and taro seedlings are generally unearthed in mid to late May.

The bulb taro should be tilted up and down: it is not easy to rot the buds in this way in drought, and it is not easy to rot in the rain, and it can sprout early.

Use rhizomes as taro, which can be dug and planted, with the top buds facing to one side, and arranged in the ditch one after another.

Use straw or weeds to form a nest, and plant taro in the grass nest, which can not only protect the taro skin and taro buds from damage, but also loosen the soil, and provide nutrients after the grass rots, which is conducive to the growth of konjac. However, this method is prone to rot in years with little rain, or the lack of moisture delays the time of soiling, so it is necessary to water more. This method should not be used in places with poor water sources.

Whether it is bulbs or rhizomes, the planting depth is generally 10 to 15 cm. If it is too deep and the soil temperature is low, it will not take root, the ground pressure is high, and the bulb is difficult to expand, which affects the yield.

Konjac has wide adaptability, low requirements for soil, temperature and other conditions, and can be planted in plains, mountainous areas, field corners, front and back of houses. Konjac has high utilization value, and can be processed into konjac noodles, pastries, jams, small champagne and other series of foods and medicines. Therefore, the prospect of developing and utilizing konjac is very broad.

However, konjac planting technology needs to do some technical guidance according to comprehensive factors such as seeds, soil, rain, climate, and temperature!