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Kiwi fruit seed

Kiwi fruit seed

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Time:2017-05-06 06:37:29
productDescription
seedling technique
First, the sand treatment
Seeds can be raised after low temperature sand storage, otherwise the emergence of very little. The author of the trial, in Shaanxi from the beginning of 12fl sand accumulation, after 3 months of seed germination rate of sand is 56%, up to 70%.
The specific approach is: before the sand will be soaked seeds with warm water for 12 hours, the temperature of the water into the hand is not suitable for hot. Then, remove the seeds and mix the wet sand.
The water content of the sand is squeezed into a group by hand. It is suitable for the water content of the sand, which is about 20%. The proportion of the general mix is 5 parts of the sand and l seeds, but also more sand. The key is to mix evenly, the sand is too dry, too wet, too little, mixed uneven will make sand reservoir failure. Mix the seeds and sand, and put them in a pot or wooden box. The bottom of the flowerpot or wooden box must have a permeable hole to prevent water accumulation at the bottom, causing seed decay. The wooden box is covered with wooden boards or felt sheets to prevent the mice from eating seeds. The flowerpot or wooden box in a cool place, the temperature of L4 DEG C is appropriate. It is best to be buried in the ground, because the underground can be kept moist for a long time, there will be no short term dehydration drying, otherwise it will affect germination. Sand should pay attention to every week during the week to check once, the sand should be timely watering, and up and down, to avoid the dry wet. Sand storage seeds to second years when the thief can sow.
If the seed is bought in spring, when the temperature is high and the time is not enough, the method can be used to change the temperature. The seed layer was deposited at a temperature of 5 DEG C for a period of at least 6 weeks, then the temperature was treated for a period of 3 weeks at a temperature of between 10 and 20 DEG C, and the germination rate was up to 40%. If the time is urgent, the seeds soaked in warm water for 1 days, take out on the temperature of more than 24 degrees in the greenhouse or greenhouse, every check, anti dry, mildew, ten days to germinate. The seeds should be planted in time.
There is a new method, when the seedlings were cultivated, then grafted out of the nursery. For example, the seeds were collected in November, took 2 hours to soak back, wrapped in a cloth bag, put people in the refrigerator for 2-3 weeks in the temperature of 5 degrees, and then placed in the temperature of 10 ~ 20% alternating temperature, forcing the seeds to break dormancy. When dealing with the late seed thief (usually in December of that year on Austin) from sowing to greenhouse or double greenhouse. Room temperature to 24 DEG C, before seeding to second years in March, the normal processing of seeds, and the seeds of temperature in March will be able to grow 4 leaves, move the field, N7 months can be grafted, Chupu seedling quality or fall.
In winter, the seeds can be planted in the double-layer plastic shed, and the same effect can be obtained.
Two, sowing good species
Kiwi seed is very small, sprouted out of the bud is also very small and very thin, if the operation is not standardized sowing, it will fail. So be careful, according to the specification.
1 choose the seedling breeding ground in order to be able to keep the wet sand loam for the best, convenient water, no cold winter invasion. Flood land, yellow mud, slope can cultivate a good seedling.
2) seedling sorting first base fertilizer. Pig and cattle manure were basal, per 666.7 square meters (MU) was about 5000 kg. Manure should be fully decomposed, broken evenly scattered in the ground after the break, and then plough deep 20 ~ 30 cm. After breaking the clods, make furrow sowing. Wow long because of the terrain. If the terrain is flat, can grow 20 meters wide, 1 meters to the rough, furrow furrow; should be short, made of high ridge in rainy regions or areas, 15 to 20 cm higher than the ground. In short, border checks must be flat, thin and loose soil beds. Do the same at the same time, to cover the seeds of soil ready. The concrete, 1 small dung, l fine soil, l sand, with a fine sieve, mixed evenly. This mixture of soil is also called nutrition soil. Ready to pile up, covered with plastic film, can not let the rain wet, avoid forming a piece, it is difficult to use. The underground pest over the area to broadcast or a pesticide spraying, avoid pests damage seedlings.
3) good sowing time because of the temperature difference is very large, so there is a big difference between planting time. In Hunan, in December to the following year l month sowing the best, the most late in the year of February; Guanzhong area in Shaanxi, in late 3 as well; in the southern region of Shaanxi, in early March as well. Sowing too early or too late, first, affect the germination rate of seeds, two is the impact of seedling and seedling growth, therefore, it is necessary to sow at the best time. There are special equipment, such as greenhouses, solar greenhouses, double plastic greenhouses, as long as the treatment of seed germination, it can be planted at any time.
4) fine seed before sowing to seedling watering, watering evenly, etc. the water to seep after seeding. When sowing, the seeds are mixed with a few times of sand or fine soil, so that the seeds can be evenly distributed in the furrow. After the seed is removed, it will be covered with a prepared mixture of nutrients, a thin layer, and just cover the seed. The soil should not be too thick, the top of the seed bud is not excavated; it can not be too thin, thin and will make the germination of seeds dry dead. This is the key to success or failure. According to the survey, the main reason of failure: one is under mulch thick, not up; two is used as the seed cover soil is generally not broken down, soil, soil where no seed; the three is to grow seedlings, with manure results burned seedlings.
Three, good plastic shed
After seeding in the northern area of the bottom temperature, if you do not take the plastic shed, even if the buds will not emerge because of the low temperature. Plastic greenhouse temperature remains at about is conducive to the emergence of fast, qimiao. The first with fine bamboo scaffolding, inserted into a bow in the furrow on the beam,Top 60 cm from the ground, above the plastic film, surrounded by soil pressure. When the outside temperature up to 20. When more than 2, will be opened on both sides of the hood ventilation cooling. When the temperature drops in the evening, seal both sides. Open every morning, cover the night. If the water shortage, the film opened, pot by sprinkling water, then the film cover, watering when careful not to let the seeds washed out of the ground, exposing the soil cover. When the seedlings full of Qi or out of 80%, is a detachable plastic shed, the bamboo mat foil or shade shade net, prevent sun shaisi and fierce seedlings. Just out of the sun were afraid of light. Under the strong light, one morning can be completely drying up, especially in the northern continental climate at noon temperature is particularly high, prone to such problems.
Four, timely transplanting
According to the test, in 4 ~ 6 leaves when transplanting survival rate is the highest. To whole seedlings before transplanting. The requirement of soil preparation is basically the same as that of the sowing land. Width of 1 meters, depending on the length of the terrain. Transplanting seedling planting spacing of 12 cm, 4 cm spacing. This distance grows out of Miao Jianzhuang, can be grafted. To timely watering after transplanting, and at the same time to catch the shade or a shade. The roof from the ground 50 cm high, the shading to 40% ~ 50% of the light is appropriate. Taiyin, leggy seedlings slender and not thick, when it is difficult to graft.
Five, seedling management
The seedling period should always pay attention to watering, keep the soil humidity. The autumn can shed off. Southern rain, not necessarily a shade, just keep the seedlings moist, can ensure high survival rate after transplanting. Seedling fertilization, watering by applying water in urine by fermentation. Can also be used 0.2% of the urea foliar spray or when the water into the. Can not be excessive fertilization, or prone to burn seedlings. When seedlings. When the seedlings were topping 20 cm long, base of the shoots promptly erased, so that small seedlings grow bigger, to have more than 70% can be grafted in autumn. In the south the lowest 90% can graft. If there is disease, insect damage, can refer to the tree management part of pest control.