Amphisarca Lists
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Prevention of Strawberry Diseases and insect pests in Summer and matters needing attention
The application of boron and iron fertilizer can improve the quality of strawberries. At present, strawberries have been put on the market on a large scale, but with the growth and harvest of strawberries, farmers ignore the application of trace elements and unreasonable use of fertilizer, resulting in the lack of trace elements needed for strawberry growth. in particular, the symptoms of boron and iron deficiency are particularly obvious, which have affected the yield of strawberries.
2018-09-14 -
Technology of scientific harvest, storage and preservation of fresh jujube
Fresh jujube has been widely cultivated in rural areas all over the country, and its fruit is bright red in appearance, crisp and sweet in taste, and rich in a variety of nutrients. The content of vitamin C in fresh jujube is 60-80 times that of apple and 30 times that of citrus. Scientific storage and preservation of oysters can greatly reduce the loss of growers and increase production and efficiency. Ensure that there are fresh dates in the market for a long time.
2018-09-14 -
Cultivation techniques of Taiwan jujube
Taiwan green jujube is from India jujube after many years of improved breeding. It has large fruit (generally fruit weight 60~100 grams), fine core, crisp meat, sweet taste and high nutritional value; it bears fruit in the same year of planting, and can enter the high yield period in the second year. Taiwan green jujube thick and fast growth, strong adaptability to temperature, tolerance of 35 degrees high temperature and a 10 degrees...
2018-09-14 -
Promoting High Yield of Jujube Tree by Proper Fertilization
Only scientific and rational fertilization of jujube trees can strengthen tree vigor, improve pest resistance, improve quality and increase yield. Fertilization of jujube tree is divided into basal fertilizer and topdressing. The scientific application period of base fertilizer is from the mature period of jujube fruit to the soil thawing in the following year, and the topdressing is divided into three stages: the early stage of bud, the early stage of full flower and the rapid expansion period of fruit.
2018-09-14 -
Renewal techniques of old jujube trees
Pull the branch and open the corner. For the more upright branches, we can change the direction by pulling branches, disperse the growth polarity, slow down the vegetative growth momentum, and enhance the ventilation and light transmission of the tree. Get rid of cuteness and pick the heart. For the newly germinated useless jujube head, it can be erased from the base when there is no room for development, leaving only 2-3 jujube hangers at the base. ...
2018-09-14 -
Techniques of bud grafting of jujube in summer
Before that, we are going to choose sour jujube seedlings with strong growth, no diseases and insect pests, and the base stem diameter is more than 0.5 cm as rootstocks. Cut strong growth, no diseases and insect pests, full bud eyes, annual Lignification branches as scions, 0.4-0.6 cm in diameter, cut off leaves and leave petioles. Cut the scion into 20-30 cm long segments and use wet sand.
2018-09-14 -
Five misunderstandings in jujube management
First, only paying attention to winter shearing while neglecting summer tube jujube winter shearing can adjust the tree potential and improve the ventilation and light transmission conditions inside the crown, which is beneficial to concentrate nutrients and improve the quality of jujube fruit in the following year. "the trees are cut in winter and the summer tubes are solid." The main measures of summer tube are to remove the cuttings, remove the heart, pull the branches, remove the dense branches and the strong branches on the back. Some jujube farmers.
2018-09-14 -
Grafting Propagation of Jujube
The main results are as follows: 1. In the cultivation and production of rootstocks, sour jujube seedlings are commonly used, which can be obtained by direct sowing and transportation from other places. Before sowing sour jujube, the nursery should select the sandy loam with fertile soil, then open the soil moisture to make the bed, fertilize and water, sow the seeds, mostly use strip sowing, sowing 10cm, ditch depth 3cm, and suppress after sowing. After sowing.
2018-09-14 -
Pay attention to the prevention and control of grape diseases during Meiyu period
When Jufeng grape uses B9 and paclobutrazol to protect fruit, it is easy to cause side effects such as shorter flower ear, smaller fruit grain and so on. therefore, how to make Jufeng protect fruit without hardening fruit stalk, the method of fruit reduction is what people have been looking forward to for a long time. After many years of experiments, we have adopted the pyrone bao fruit produced by Lanyue Science and Technology Company of Sichuan Academy of Agricultural Sciences.
2018-09-14 -
On the problem of sparse inflorescence of grape
1. The purpose of grape inflorescence thinning is to further adjust the yield on the basis of wiping buds and fixing branches, to achieve a reasonable plant load, to save nutrition, and to improve fruit setting rate and fruit quality in order to achieve the purpose of high quality and high efficiency. 2. The time of blossom thinning of grapes: when the inflorescences of new shoots can be clearly identified.
2018-09-14 -
Disease control of grape in rainy season
Grape downy mildew is one of the important diseases of grape, which can occur in all parts of our country, mainly harming leaves, causing early defoliation, but also harming new shoots and ears. The main symptoms are polygonal macula on the front of the leaf, withered in the later stage, brown in color and white downy mildew on the back. Grape downy mildew.
2018-09-14 -
Key points of Spring Grape Management
Spring is the season of sprouting and spreading leaves, elongating branches, heading, blooming and fruiting of grapes. How to strengthen the management of grape in spring and improve the yield and quality of grapes is a common concern of fruit farmers. The following focuses on the main management of grapes from February to April. January, the sprouting period from mid-February to early March: irrigation of budding water.
2018-09-14 -
How to identify and control jujube rust
(1) symptoms: jujube rust only harms leaves. At the initial stage, there are light green dots scattered on the back of the leaves, and then gradually protruding into a dark yellow, that is, a pile of germ summer spores. The shape of the summer spore pile is irregular and mostly occurs on both sides of the midrib, leaf tip and base. Yellow summer spores are scattered after the surface of the lesion is ruptured. At the front of the leaf corresponding to the pile of summer spores.
2018-09-14 -
How to control jujube anthracnose
First, the symptoms: the infected fruit first appeared reddish-brown spots, then the disease spot gradually enlarged, surrounded by a light yellow halo ring, and finally the disease spot color became dark brown, slightly sunken but then expanded slowly, and the shape of the disease spot was diversified, such as round, oval or fusiform. The flesh in the spot changes from green to brown and necrotic.
2018-09-14 -
Control methods of jujube gall midge pests
This insect is commonly known as jujube leaf maggot, which is distributed in various jujube areas all over the country and harms young leaves, buds and young fruits with larvae. The young leaves were tube-shaped curled, purplish red, hard and brittle, and soon blackened and withered. After the bud is killed, it can not open, wither and fall off. The young fruit is not properly nurtured and grows up. When it is the size of a soybean, it turns yellow and falls off.
2018-09-14 -
A new method of grape green branch grafting
Grape green branch grafting is a good way to quickly raise seedlings and renew old trees. The grafting time is in the idle season after summer sowing. With lignified green branches, the survival rate of grafting can reach more than 95%. Each person can receive 500 to 800 seedlings per day. The new branches after that can be lignified before autumn, can survive the winter safely, the interface heals well, and the seedlings are woody.
2018-09-14 -
Two measures for arrangement of grape inflorescence
There are 300 to 1500 flowers in the grape inflorescence, and most of the flowers and fruits fall during the fruit setting period. Therefore, flower thinning of inflorescences retained on fruiting branches can enhance the development of remaining flowers. First, sparse inflorescences. To remove the whole inflorescence from the fruiting branch. When the plant load is large and the inflorescence is too much, it is necessary.
2018-09-14 -
Treatment method of grape inflorescence
The main flowering diseases of grape such as Xiahei and Red Earth are Botrytis cinerea and ear axis brown blight, both of which belong to fungal diseases. Botrytis cinerea, also known as ear rot, has occurred more seriously in recent years. More than 70% of flowers can be destroyed in orchards with severe disease, mainly in the pre-anthesis and florescence damage to Corolla, petiolule, spike pedicel and pollination.
2018-09-14 -
Key points of grape maintenance during flowering and fruiting period
First, strengthen the management of fertilizer and water. In production, fertilizer and water management must be carried out according to the phenological phase of grape growth and development. In addition to deep ploughing, fertilization and soil improvement during grape planting, fertilization and irrigation should be carried out at each growth stage according to the needs of grape growth and development. 1. After the vine was unearthed.
2018-09-14 -
Three times of medicine for grape disease control
1. Skin. In early spring, first spread a layer of plastic film under the grape tree, and then peel off the skin on the branches, so that it falls on the film, at the same time cut off the diseased branches, together with the skin on the film together in the garden burning treatment. Second, deep ploughing. Combined with the application of grape bud fertilizer, a deep ploughing of the whole garden, the depth of 2...
2018-09-14