Cultivation techniques of Actinidia chinensis

Red kiwifruit is a kind of imported kiwifruit, which has become popular in China in recent years. It is loved by people as soon as it is listed on the market, and its sales are also very good, often in short supply. Its price is slightly higher than that of domestic kiwifruit, but its taste is better and sweetness is higher. So many people want to try to grow this kind of kiwifruit.

Cultivation techniques of Actinidia chinensis

1. Seed collection. After picking back the fully ripe wild kiwifruit, put it in a cool place and peel off the peel, scrub it in a clean gauze bag, and wash off the pulp and only the seeds. The seeds were spread out to dry, packed in plastic bags and stored at a low temperature of 4 to 5 ℃.

2. Sand storage. About a month and a half before sowing (Cangxi is usually in late December), soak the dried seeds in 50-70 ℃ hot water for 1 hour and 2 hours, then soak in cold water for 1-2 hours, then soak in cold water for 3 days, remove and mix well with 5-10 times moist river sand into a basin or bucket, turn it once every other week, and keep suitable humidity, pinch into a ball and release.

3. Sow seeds. The Beginning of Spring sowed seeds in Guangyuan Hongxin kiwifruit experimental demonstration garden in early February. Select sandy loam soil with sufficient light, loose soil fertility, convenient drainage and irrigation, slightly acidic or neutral sandy loam as seedbed, and apply base fertilizer and insecticide before the whole bed. Deep rake fine leveling box, in order to prevent water stains need to do high box. Spread the hidden seeds with sand evenly on the nursery, cover with a layer of fine soil with thick 2~3mm, and finally cover with plastic film.

Living conditions of Actinidia chinensis

Kiwifruit is a positive tree species, resistant to semi-shade, like a cool and humid environment, afraid of drought, waterlogging, wind. The kiwifruit orchard is selected in the leeward sunny hillside or open land, the soil is deep, moist, loose, good drainage, high content of organic matter, pH of 5.5-6.5 slightly acidic sandy loam. Avoid low-lying water environment. The planting time is from the end of autumn to the beginning of spring, before the branch bleeding period in late October in autumn and late February in spring.

Kiwifruit likes light and is afraid of the sun. Wild plants basically grow on shady or semi-shady slopes and riversides, and have a very strong ability to make use of astigmatism. Even if they wind and grow on a big tree, there is no problem, but they cannot be too hidden. If there is a serious lack of light, branches will die. This is the reason why reasonable plant spacing is emphasized in production. Generally speaking, they like sunshine but are afraid of high temperature.

Fertilization principle of Actinidia chinensis

The main results are as follows: 1. Red kiwifruit likes fertilizer and is afraid of burning. The growth and strong growth potential of kiwifruit determine its urgent demand for fertilizer. Coupled with the predatory work psychology of highlighting yield in production, kiwifruit shows yellowing, leaflet, stopping growth and other phenomena once it lacks inorganic nutrients, so kiwifruit is sensitive to fertilizer, but fleshy roots are also sensitive to soil salt concentration, especially continuous high temperature and drought. Thus forming a new contradiction to three-dimensional, in view of this, production requires that the fertilization of kiwifruit must grasp the principle of far scattered light, that is, a small amount of multiple fertilizer application method, that is, it can meet the fertilizer demand without fertilizer damage, which is the kiwifruit like fertilizer and afraid of burning.

2. The annual fertilizer requirement of kiwifruit is as follows: in the early stage, the requirement of N.K is large, and it is best to apply it in the form of base fertilizer after fruit harvest in autumn, there are fertilizer 5000kg/667 square meters, 243. mixed application of calcium superphosphate 80kg/667 square meters.

3. From sprouting to flowering and fruiting, proper topdressing is mainly composed of Ca, Mg, B, Fe, Mn and so on. This topdressing accounts for 2% and 3% of the whole year. In August, the main available P.K fertilizer was N15~20kg//667 square meter, P5~7kg/667 square meter and K6~8kg/667 square meter, and the topdressing accounted for 3% of the whole year.

Disease and pest control of Actinidia chinensis

Kiwifruit is vulnerable to blight, mole cricket and ground tiger in seedling stage. Blight: the base of the injured seedlings was waterlogged at first, then deepened gradually, then blackened, constricted and rotted, and the upper leaves withered and died gradually. Can be combined with water spray 2 times 50% carbendazim 1000 times or 50% methyl topiramate 1000 times solution for prevention and control.

Mole cricket: the larvae lie dormant during the day and go out at night, gnawing on the tender leaves and biting off the stems, so that the seedlings die. 10 ∶ 1 fried bran skin mixed with trichlorfon powder can be scattered around the plant or trapped by light.

Ground tiger: the 3rd instar larvae go out at night and bite off the stem of the seedling, resulting in seedling defect. It can be killed manually in the early morning, or 1% trichlorfon solution can be sprayed with water spray or 1% trichlorfon liquid mixed with vegetable leaves can be trapped and killed in the nursery.

The cultivation of kiwifruit must do a good job before sowing, and the selected land should be fertile and acidic soil for sowing. If the drainage system is good, there can be no stagnant water. This is a taboo for growing kiwifruit with hearts. It must be done in place. Then strengthen the management in the later stage, so that the yield of red-heart macaques must be high.