How to grow potatoes without soil, how to grow potatoes without soil How to grow potatoes without so

The main nutrients and quantities in the nutrient solution are generally 100-25 oppm of nitrogen, 50-1 ooppm of phosphorus, 150-4 ooppm of potassium, 200-300 ppm of calcium and 50-70ppm of magnesium. There is a difference in the requirements of nutrients for various plants:

For example, spinach, cabbage, Liba and other leafy vegetables should increase the amount of nitrogen; Fruits, tubers and roots, such as cucumbers, pumpkins and potatoes, should be increased with phosphorus. In the later stages of growth, nitrogen should be reduced and phosphorus should be increased. In areas with high temperatures and sunny conditions, reduce potassium**.

In addition, certain changes will be made depending on the water quality. If the content of calcium and magnesium ions in the water is high, it is necessary to reduce the ** of calcium and magnesium. The solution can be prepared using well water, river water, spring water, tap water, fertilizers, etcOther:

For example, spinach, cabbage, lettuce and other leafy vegetables should be increased with nitrogen; Not only to be able to match, but also to manage: 1. Nutrient solution water Natural rainwater is the safest source of water. Well water mostly contains chlorine, calcium, iron, magnesium and trace elements such as zinc, copper, molybdenum, etc., and the element content in the water must be analyzed in advance to determine the appropriate increase or decrease in the preparation of nutrient solution.

When using tap water and river water, fertility disorders are often caused by residual chlorine and mixed with herbicides. In particular, tap water is not dechlorinated, and residual chlorine will cause vegetable root rot. When the salt content of nutrient solutions such as river water, well water and tap water is excessive, it can be removed by distillation, ion exchange, electrodialysis, etc.

Rainwater is more economical instead. 2. In addition to the special fertilizer for soilless cultivation, the preparation of nutrient solution also uses a single fertilizer and a mixed fertilizer suitable for water quality, but the calculation, preparation and adjustment of fertilizer dosage are more complex and prone to some problems. 1.

The fertilizer measuring instrument is not calibrated or corrected incorrectly, resulting in the concentration and composition of the prepared mother liquor being different from the original design; The fertilizer is dissolved in the wrong order and cannot be fully dissolved; The difference between the element representation and the oxide representation of fertilizer is ignored, resulting in the wrong preparation of nutrient solution. 2.Ordinary fertilizer is used, the purity is too low, and precipitation occurs when the stock solution is prepared; Samples were taken from near the water inlet, resulting in low analysis results.

Due to the time required from sampling to analysis of results, it is difficult to adjust fertilizer composition and concentration in a timely manner. 3.The omission of trace elements caused trace element deficiency in all plants, resulting in yellowing of stems and leaves.

In addition, there is a shortage of root support, how to solve the problem that I don't know.

I don't know if it's clear, but you can look it up online about no-till technology for potatoes.

1. The amount of seed for seed selection and soaking is 1800kg hm2, and the original seed is sprayed with 400 500 times of Ruixin. Cut each seed potato into more than 8 pieces. Because of its apical advantage, try to cut most volts at the top of the bud eye, and then use 10mg kg of gibberellin 1 packet to add 10kg of water to soak the seeds for 5min or spray the seeds with 75kg of water.

2. Encourage germination to lay the potato pieces flat on the pure soil with suitable moisture, make the potato sprouts upward, spread 2cm soil and then lay 1 layer of seed potatoes, repeat 3 or 4 layers and then spread 5cm thick soil on it, pile it in the back of the sun, cover it tightly with agricultural film, and sow it after 15 days.

3. Sowing in mid-January, because potatoes in the expansion period if the outside temperature exceeds 25, the tuber will stop growing, and the seedlings will grow vigorously, so there must be a suitable growth period of 90 100d, and sowing should not be postponed. Spread about 3cm thick plant ash on the plot as a cultivation medium.

4. Cultivation management: The row spacing of each plant should be about 30cm, put the potato seeds on the grass ash, and then spread a layer of straw about 8cm thick. After 80 days of growth, during which no fertilization and weeding are used, when the plant stops growing, the stems and leaves gradually wither yellow, and the stolons and tubers fall off, the potatoes can be harvested.

To select fast forward, you need to select seedlings with round and full particles and undamaged seedlings, and place them in plastic bags; Water quality selection, tap water can be selected as the cultivation medium to avoid the tuber blackening; In the hydroponic method, the potatoes are placed in a container and a small amount of water is poured in; In the later stage of maintenance, the water needs to be changed every 5 7 days, and the water should be changed every 3 days in summer.

When cultivating potatoes without soil, it is necessary to select the seedlings with round and full particles, undamaged and undamaged surfaces, place the seedlings in a plastic bag, pierce them into a small mouth for sealing, and then transfer the tubers to a leeward and cool environment, so that the seedlings can germinate as soon as possible, so as to improve the survival rate of cultivation.

When cultivating potatoes without soil, it is necessary to choose tap water or purified water as the water quality for cultivation, and it is generally recommended to choose tap water, because tap water will contain a large number of nutrients and trace elements that are beneficial to the growth of potatoes. Before use, the water needs to be exposed to the sun for disinfection to avoid rotting and blackening of the tubers.

After the potato tubers have germinated, choose a container with a similar diameter to the potato, pour an appropriate amount of water into it, and then place the tubers in the container to let the young shoots come into contact with the water. In the early stage of hydroponics, a layer of paper towel can be placed on top to let the paper towel contact with the water to keep warm and moisturize.

In the process of hydroponics of potatoes, the requirements for water are higher, and the water needs to be changed every 5 or 7 days to ensure the cleanliness and hygiene of the water quality, and in the summer high temperature environment, it is recommended to change the water every 3 days to avoid the tubers from rotting and blackening. The ambient temperature should be stable at about 20, and appropriate astigmatism should be given to maintain the normal growth of seedlings.

Potato planting method: 1. Germination treatment, the potato is placed in a dark and windy environment to germinate, and then cut into several small pieces; 2. Soil selection, apply organic fertilizer to the soil once, and disinfect it once; 3. Sowing management, put the cut potato seedlings in the soil respectively, and moisturize them after pouring water; 4. Post-planting treatment, and then water the mu with finch water every 1 2 days, and the transplanting can be completed after the real leaves grow.

1. Germination treatment.

First of all, the potatoes that grow robustly and disease-free, mainly seal them in a dark and sheltered environment for germination treatment, control the temperature at about 18 25, and then cut the sprouted potatoes, leaving 2 3 sprout eyes on each.

2. Soil selection.

The growth of potatoes has high requirements for the soil, it is best to choose loose and fertile, good air permeability in the sandy soil for cultivation, can be mixed with plant ash, humus soil and sandy soil, before planting, should apply a thin base fertilizer.

3. Seeding management.

The germinated potato seedlings are planted in the nutrient soil, keep the spacing of each plant at about 30 40 cm, after watering it once, keep it moist, when the real leaves grow, you can transplant it, and inject enough water and fertilizer in ordinary times.

4. Post-planting treatment.

Potatoes like to grow in a warm and humid environment, can be watered every 1 2 days, can not cause potting soil water, when the weather is hot, you can increase the number of watering appropriately, but also to maintain sufficient light treatment, as early as possible to promote the growth of axillary buds.

Potato soil cultivation method:

Specific planting steps].

Select the potatoes. Potatoes are generally propagated by tubers, so buy potatoes for planting in advance (you can use them directly if you have leftover potatoes at home to sprout). There is also a need to pay attention to the choice of potatoes for planting, and it is best to meet these 2 points:

1. The epidermis is not damaged;

2. There are many eyes on the potatoes (that is, the potholes on the surface of the potatoes).

Note: It would be better if you found one with buds.

Cut the potatoes into cubes.

It is better not to stuff the potatoes directly into the soil, you need to cut them into several small pieces to sow the seeds.

Cutting is also particular, take a closer look at the potato, you will find that there are some "small eyes" on the surface of the potato, these "small eyes" are actually the budding eyes of the potato, and the potato will germinate and grow wide cavity roots in the future. Therefore, when cutting into pieces, each piece must contain bud eyes.

Remarks: 1. Don't be in a hurry to plant after cutting, dry it for about 1 day before planting, so that the wounds of the potatoes will heal naturally and will not rot in the soil (you can also put it in a cool place to dry the surface, but it will take longer):

2. It is better to produce small buds during the drying process, and if they do not come out, they can also sprout in the soil.

Sow. Bury the potato tubers in the prepared soil (mixed with basal fertilizer).

Potato sprouts (sprouts) are facing upwards, with a density of about 15-20 cm, then cover with soil (cover with 3 cm thick soil), water thoroughly, and place in a sunny and warm place. When the temperature is too low, the seeding container can be covered with plastic film to keep warm and moisturized.

Note: Do not plant potatoes too close to the edges so as not to affect the growth of the root system.

Budding and seedlings.

After about three or four weeks, the potatoes are basically emerging. Potatoes of the average variety will grow an average of 3 to 5 sprouts. Leaves begin to grow a few days after budding.

When the new shoots grow to about 10cm high, you need to "thin the buds" (also called seedlings), and keep 2 new shoots. If the buds are not thinned, several buds will grow together and produce many small potatoes, but none of them will grow large.

Remarks: 1. After thinning the buds, new soil can be added appropriately to ensure the space for potato growth and development;

2. When thinning the buds, be careful not to hurt the remaining new shoots, you can press the soil and pull out the buds diagonally from the side.

Turning the soil (also called soiling).

Turn the soil: loosen the planting soil and turn the soil below to cover the roots of the potatoes;

The purpose of turning the soil: on the one hand, the potatoes that grow on the surface layer will not be exposed to the sun, and the potatoes are easy to turn green if they are sunburned; On the other hand, it can also prevent lodging.

When the seedling height is about 10-15 cm, the first time to turn the soil, when the seedling height is about 25 cm, the second time to turn the soil.

Topdressing. After a long time, after the appearance of flower buds.

And in the full flowering period, according to the size of the potatoes or the speed of growth, you can apply fertilizer once to make the potatoes grow bigger.

You can focus on applying more phosphorus and potassium fertilizers, and nitrogen fertilizers can also be applied appropriately.

It is generally sown with the "bud eye" on the tuber. To avoid the spread of viruses with a cutter, use healthy seed potatoes with a diameter of 3 cm for whole potato sowing.

When propagating vegetatively with tubers, seed potatoes can germinate and grow under the condition of soil temperature of 5 8, and the optimal temperature is 15 20. The temperature suitable for the growth of stems and leaves and flowering of the plant is 16 22 . The most suitable temperature for tuber formation at night is 10 13 (soil temperature 16 18), and the formation is slow above 20.

Frost damage occurs when the temperature drops to -2 at the emergent and seedling stages.

1 Preparation before sowing Dig the ground 24 cm 25 cm deep, and then level.

2. Fertilizer preparation about 20 days in advance, according to 300 kg of 500 kg of manure per mu, evenly add 25 kg of 50 thousand grams of ammonium bicarbonate, seal and pile it in the sun, mix it well after it is fully decomposed, and apply it and turn it into the soil when turning over the soil.

3 Pre-sowing treatment of seed potatoes Sterilization. 120 kg of seeds per mu, and the original seeds are sprayed with 400 times and 500 times of Ruixin mold. Diced.

Cut each seed potato into more than 8 pieces. Because of its apical advantage, try to cut more pieces at the top of the bud eye, and then use 10 mg kg of gibberellin 1 packet to add 10 kg of water to soak the seeds for 5 minutes or add 75 kg of water to spray the seed blocks. Germination.

Place the potato block flat on the suitable moisture pure soil, make the potato sprouts upward, spread 2 cm of soil and then lay a layer of seed potatoes, repeat 3 layers and 4 layers and then spread 5 cm thick soil, pile it in the back of the sun, cover it tightly with agricultural film, and sow it after 15 days.

4 sowing requirements according to the row spacing of 70 cm, plant spacing of 20 cm ditch to the side of the soil, ditch depth 6 cm 8 cm, put seed potatoes to make the potato buds upward, and then cover the soil ridge height 10 cm 15 cm. After compaction, it is covered with mulch, and after the top of the bud film, the film is broken and the soil is covered. 5 Field management When the seedlings grow 3 or 5 leaves, pay attention to the control of aphids.

Top dressing at the early stage of budding and full flowering stage, generally 500 times of Phytomyces shirui plus urea or potassium dihydrogen phosphate 1 plus bulking horm. During the tuber expansion period, attention should be paid to strengthening field irrigation to improve yield. 6 Harvest in time Potatoes are of the best quality in mid-June and should be harvested in time.

Are you ready to plant in**? It is not recommended to plant south of the Yangtze River, because it is difficult for potatoes to accumulate nutrients (due to sunshine and temperature), so the balls will be smaller and the commodity value will be lower. As for how to grow potatoes, I think the answer above is more complete.

There is not much other content, the most important thing is to know whether you can plant it, how many levels of products can be planted, how many are you, and you can calculate it yourself first to see if you can make a profit. Only if you know it in your heart, you can do it again!