Amphisarca Lists
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Fertilizer and water management of jujube soil
Jujube trees have a long flowering period and like to be wet and afraid of dry. When 60% of the flowers are in full bloom, the jujube flowers can be evenly sprayed with water every 2-3 days for 2-3 times, which can increase the fruit setting rate. Spray 0.5% urea and 0.4% potassium dihydrogen phosphate or Tianrun No.1 solution every 5 to 7 days when jujube blossoms bloom for more than 3.
2018-08-02 -
Cutting Seedling of improved varieties of Actinidia
In order to prepare the cutting seedling bed, the dry soil with high topography, loose soil and certain water retention capacity should be selected. After ploughing, the land was arranged into a seedbed about 1 meter wide and 25 centimeters high, mixed with a certain amount of river sand on the bed surface, and disinfected the soil twice with 1% 0.5% potassium permanganate. Softwood cuttings around the middle and late June,.
2018-08-01 -
Key points of post-anthesis management of kiwifruit
Forty days after kiwifruit blossoms, it is a critical period for kiwifruit management. The fruit expands rapidly and requires a lot of nutrients and water. First, fertilization after falling flowers, in mid-May, timely application of urea, diammonium, potassium chloride or ternary compound fertilizer, fertilizer application amount of urea 20 kg per mu, diammonium 15 kg, chlorination.
2018-08-01 -
Removal method of kiwifruit rust
1. Garden selection: choose shallow mountains and hills with leeward to the sun, sufficient water source, convenient drainage and irrigation, deep soil layer and rich humus. One meter square hole was used for soil preparation, and farm manure 50kg and mature cake fertilizer 2kg were applied to each hole. 2. Planting technology: one-year products were grafted into strong seedlings with a row spacing of 3 m.
2018-08-01 -
Cultivation techniques of Walnut
Cultivation value walnut is an important oil fruit tree with high economic value. Walnut kernel is not only rich in fat, but also high in protein, vitamins and a variety of minerals, which is often used as an advanced tonic and has a certain medical effect. The walnut kernel of our country is of good quality and high oil content, which is well received by the international market.
2018-08-01 -
Identification and Control of Walnut Diseases
When the branches of the walnut tree are pruned during dormancy, the wound on the tree will cause wound flow, resulting in a massive loss of nutrients, resulting in the weakness of the tree and the death of the branches. To prevent walnut trees from getting hurt by pruning, we should grasp the pruning period and prune at the right time. In spring, the branches and leaves of walnut trees sprout and develop leaves.
2018-08-01 -
How to breed walnut seedlings in spring?
First, seed selection: select the fully mature seeds in the excellent varieties, so that the germination rate is high. That is, during the walnut harvest, most of the involucre (green skin) cracked and fell off on its own, or the involucre did not crack and fall off after about half a month of maturity. Second, seed treatment: at the beginning of March, the seeds to be bred will be sandy.
2018-08-01 -
Seedling cultivation by cutting of grape branches and vines
Cutting is the direct use of grape branches and vines to cultivate seedlings. According to the different types of branches, cuttage can be divided into hardwood cuttage and green wood cuttage. (1) the principle of cutting rooting, the nodes or nodes of grape branches can take root, this kind of root is called adventitious root. On the grape vines.
2018-08-01 -
Key points of kiwifruit management in early spring
Early prevention of diseases and insect pests before germination and germination stage, 100-150 times of barium sulfide for tree insect control or 3 to 5 degrees of stone-sulfur mixture to kill eggs and overwintering bacteria. The early application of budding fertilizer was 1.5 kg per tree for big trees and 0.5 jin for young trees. Set up the pillar early and tie it up as soon as possible.
2018-08-01 -
Technical points of integrated control of diseases and insect pests of Shatian pomelo
It is understood that since the 1980s, large-scale Shatian pomelo planting bases have been established in various parts of Meizhou, and the economic benefits have been increasing. Many farmers in the practice of planting Shatian pomelo for many years, the cultivation techniques have been greatly improved, but due to the large area, a wide variety of diseases and insect pests, the new occurrence of diseases and insect pests.
2018-07-31 -
How to improve the fruit setting rate of Shatian pomelo
First, replanting or high grafting of pollinated trees. The proportion of pollinated trees in the whole garden reached about 10-15%, and pomelo varieties with strong pollen quantity, strong pollen vitality and similar flowering period to Shatian pomelo were selected. At present, sour pomelo is often used as the pollination variety of Shatian pomelo. Second, carry out artificial pollination. Artificial pollination can significantly improve the fruit of Shatian pomelo.
2018-07-31 -
Early phosphorus sufficient potassium pomelo tree has high yield
Pomelo, also known as honey pomelo, branches and leaves fruit than citrus thick and broad, high yield per mu, fertilizer application is also more, is the "big eater" in the citrus family. The main producing areas of pomelo are mainly in South China, the soil is seriously short of potassium, and the amount of potassium fertilizer is about the same as that of nitrogen fertilizer. Pomelo nitrogen, phosphorus, potassium balanced fertilization, to control nitrogen fertilizer, early application of phosphorus fertilizer, application.
2018-07-31 -
Daily affairs of cultivation and management of grapefruit
First, strengthen the shoot, promote the shoot to turn green and prosperous tree spring shoot 4mur7 cm long spray 15% 600 times paclobutrazol, make the spring shoot short and strong, the inflorescence strong, spray the crown with green fenwei during the spring shoot leaf expansion period, and promote the leaves to turn green. Second, plastic film mulching, moisturizing and cooling in summer and autumn, high soil water evaporation, orchard rows.
2018-07-31 -
Multiple female flowers of litchi and longan regulate anther fertilizer
In the early stage of flower bud differentiation and development, litchi and longan differentiate and develop together in the same flower, and the sex of each flower is not determined until 20-25 days before flowering. The female-to-male ratio of flower panicle is affected by ambient temperature, nutritional status and hormone level. The author has observed for many years.
2018-07-31 -
The fruit of litchi and longan should be preserved early.
Litchi downy blight mainly harms the flower ear and fruit, causing the flower ear to dry, the young fruit to fall off, and the mature fruit to rot and deteriorate. After the temperature rises in early spring, it first infects the flower ear, and then infects the young fruit and ripe fruit. If the occurrence and infection of the disease cannot be controlled before flowering, it will suffer on young and mature fruits.
2018-07-31 -
Management of Flower Bud differentiation in Litchi
First, protect functional leaves. Autumn shoots play an important role in flower bud differentiation, flowering and fruiting. While controlling the shoot and promoting the flower, we should pay attention to the prevention and control of diseases and insect pests and protect the intact autumn shoot. Second, kill the winter shoot germination, causing the plant to change from reproductive growth to vegetative growth, consuming nutrients.
2018-07-31 -
Conditions of Flower Bud differentiation in Litchi
Litchi fruiting mother branch is strong, the mature period is suitable, the tree potential is moderate, it is easy to control winter shoots, accumulate nutrients, and is conducive to flower bud differentiation. The more organic nutrients accumulated, the better flower bud differentiation. If the tree is too prosperous, vegetative growth is strong, is not conducive to flower bud differentiation, easy to pull out flowers and leaves, resulting in reduced yield or loss of harvest; or smoke.
2018-07-31 -
High yield and good quality cultivation techniques of Litchi
1. Choose the garden. Choose the hilly slopes with open terrain, slope below 30 degrees, loose and fertile soil, deep soil layer, organic matter content of more than 1%, and water sources as litchi plantations. two。 Choose the seedlings and put enough base fertilizer on them. Choose strong branch seedlings or grafted seedlings with many new roots, smooth branches and stems, disease-free and insect-free.
2018-07-31 -
Cultivation techniques of Litchi
Cultivation techniques 1. Young litchi tree shaping and pruning young trees mostly adopt the round head shape of the main branch, which is completed within 2-3 days after planting. The growth angle and orientation of branches were adjusted by means of pulling, brace, top, hanging and so on. Pruning and shaping of young trees are carried out simultaneously, and coring, truncation, thinning and sprouting are used before new shoots germinate.
2018-07-31 -
How to prune apricot trees with initial fruit?
How to prune apricot trees with initial fruit? The main task of pruning apricot trees is to continue to cultivate backbone branches, cultivate good fruiting branch groups, expand the crown, promote the crown and promote early production. The growth of the first fruit tree is still very large, and three aspects of shaping, crown expansion and fruit should be taken into account when pruning. In pruning.
2018-07-31