Amphisarca Lists
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Key points of Scientific Management Technology of Litchi in May
The rainy weather in May will bring difficulties to the management of litchi. Therefore, in view of the early and middle maturity varieties, the following management suggestions are put forward for the majority of fruit farmers' reference. Early-maturing varieties, such as March Red, are entering the coloring period, with emphasis on the control of litchi stem borer and downy Phytophthora.
2018-08-04 -
Cultivation and management techniques of young litchi fruit trees
Litchi belongs to the disease-free family, which is native to China and is one of the four famous fruits in southern China. It has been cultivated for more than 2000 years. Based on the experience of litchi cultivation techniques, the growth characteristics of young litchi trees are summarized as follows: (1) low branch stage; (2) large shoot growth; (3) exuberant root growth; (4) flowering.
2018-08-04 -
Cultivation and management techniques for high quality and high yield of litchi
Land selection and planting: litchi high-yield cultivation should choose hills or slopes with open terrain, loose fertile soil, deep soil layer and water source, which is ideal for developing planting gardens. Litchi mycorrhiza is aerobic, should loosen soil, improve soil, loose ventilation can promote root development. Soil fertilization should be based on the principle of frequent and thin fertilization. Timely spraying...
2018-08-04 -
Introduction of Management measures for late Autumn shoot Culture of Litchi
Drip irrigation fertilization technology is the combination of fertilization and irrigation, through drip irrigation equipment for fertilization. The application of automatic drip irrigation and fertilization technology on litchi varieties Heiye, Feizixiao, Nuomici, Guiwei and Huaizhi can significantly increase litchi yield, increase the proportion of large fruits, ensure high and stable yield, and significantly save labor, fertilizer and.
2018-08-04 -
Fertilizer requirement Law and fertilization techniques of Litchi
The main results are as follows: (1) according to the fertilizer requirement characteristics of litchi, for an orchard with a yield of 1000 kg per mu, for every 1000 kg of mature fruit, 9.8kg of nitrogen, 1.1kg of phosphorus and 6.6kg of potassium were needed, and the proportion of fertilizer needed was 10:1:7. Generally speaking, flower bud differentiation begins after two or three shoots after fruit harvest and before heading, which requires more nitrogen.
2018-08-04 -
What are the common bud grafting methods for citrus? How to do it?
The methods of citrus grafting can be divided into three types: budding, ventral grafting and cutting grafting. Spring splicing is mostly used in the south subtropics with higher temperature, while bud grafting or multiple grafting is mostly used in the middle subtropics and the north in autumn. Citrus bud grafting has "T" bud grafting and inverted "⊥" bud grafting, both methods are used everywhere, suitable grafting period.
2018-08-04 -
A New method of protecting Flowers and fruits of Citrus without hormone
Citrus flower and fruit protection is one of the important measures for high quality, high yield and stable yield cultivation of citrus, especially for citrus suffering from light freezing in winter, flower and fruit protection is more important. In view of the fact that spraying "920" and 2mai 4rel D can easily cause abnormal fruit, pollute the fruit and affect the quality of citrus, here are several kinds of plants without hormones and plants.
2018-08-04 -
Key points of citrus cultivation in April
During the spring shoot emergence period of April (Qingming Festival ~ Grain Rain), the flower bud stage and flowering stage were more overcast and rainy than sunshine in late March, especially in the early ten-day period, and the temperature was on the low side, which affected the spring shoot emergence of citrus. According to the weather forecast, the rainfall in the first ten days of April is less than that of normal years, and the average temperature is higher than that of normal years. The citrus orchard rains in spring.
2018-08-04 -
Key points of citrus cultivation in March
March (sting-the Spring Equinox) spring shoot sprouting and shooting period-entering March, the climate gradually warms up, and new shoots begin to sprout. All kinds of overwintering diseases and insects will begin to do harm one after another.
2018-08-04 -
Causes of defoliation of citrus in winter and its prevention
"luxuriant leaves in winter and abundant fruits in autumn". In order to achieve high yield and high quality of citrus, we must first ensure that there are a large number of leaves on the tree to survive the winter. The main reasons for leaf shedding in winter are as follows: 1. Partial application of nitrogen fertilizer or excessive application of nitrogen fertilizer shortens the life of old leaves and falls off ahead of time. 2. Dry application of chemical fertilizer before and after fruit harvest.
2018-08-04 -
How to plant strawberries with high yield and good quality
Strawberries are planted in the greenhouse, and the environmental conditions of high temperature and humidity in the greenhouse are very conducive to the occurrence of various diseases and insect pests. Therefore, strengthening the comprehensive control of diseases is the key link to realize the high and stable yield of strawberries in greenhouse. First, leaf blight is mainly harmful to leaves, petioles, fruit pedicels, tender stems and sepals. Purplish brown is formed on the leaves.
2018-08-02 -
Two major factors lead to greenhouse strawberry deformity
According to the investigation and analysis, there are three main causes of deformed fruit, and the corresponding countermeasures can be taken to prevent the occurrence of abnormal fruit. Low room temperature is a common cause of deformed fruit. The optimum temperature for strawberry growth and development was 20-25 ℃. The lowest temperature during flowering and fruiting period should not be lower than 5 ℃, if the temperature is 5 ℃.
2018-08-02 -
Scientific control of strawberry diseases and insect pests
Under the condition that the growth management of strawberries planted in greenhouse is normal, the special-shaped fruit is 10% Murray 20%. When the selection of seeds is improper or the ecological environment does not meet the growth needs of strawberries, the proportion of heteromorphic fruits often increases, some as high as about 50%, resulting in reduced yield and low efficiency. Common heteromorphic fruits are crooked flat fruit, fat fruit, aggregate fruit, protruding fruit.
2018-08-02 -
Techniques of promoting flowering of strawberries in greenhouse
The purpose of strawberry cultivation is to produce early and appear on the market early, and the key measure is to promote flower bud differentiation and flowering. The measures to promote flower bud differentiation were carried out at the seedling stage, and flowering should be promoted after transplanting. The methods of promoting flowering are as follows: 1. Temperature and humidity management in the greenhouse. The temperature in the shed is 30 degrees during the day and above 10 degrees at night.
2018-08-02 -
Virus-free cultivation techniques of Strawberry
After years of asexual reproduction, strawberry virus disease is becoming more and more serious, the species character of strawberry varieties began to degenerate, and the yield and quality also decreased year by year. Virus-carrying plants are generally characterized by individual dwarfing, smaller leaves, serrated and acute periphery of leaflets, yellowing of heart leaves, early flowering, small fruit, reduced yield.
2018-08-02 -
Prevention and control of strawberry snake eye disease
It is not only harmful to leaves, but also to petiole and fruit stalk, which is a common disease of strawberry. 1. Symptoms. A small dark purple spot is formed at the initial stage of the disease, and then expands into a nearly round or oval spot. The edge of the spot is purplish red, the center is grayish white or grayish brown, and there are slight wheel lines, which make the whole spot look like a snake's eye.
2018-08-02 -
Planting methods of strawberry seedlings
The main results are as follows: 1. The soil is disinfected by solar heat. The specific operation method: apply the farm manure in the base fertilizer into the soil, turn it deeply, pour through the water, and cover the soil surface with plastic film or old greenhouse film. In order to improve the disinfection effect, it is suggested that the soil disinfection of the greenhouse should cover the plastic film or the old greenhouse film while buckling the greenhouse film and sealing the greenhouse. Dirt.
2018-08-02 -
"eat at the top door" for spring prevention of jujube trees
The autumn management of young jujube orchard is mainly to control fertilizer and water, strengthen soil loosening, promote trunk thickening and Lignification, and create good conditions for young trees to pass the winter. The main technical points of autumn management of young trees are summarized as follows: controlling irrigated jujube trees to tolerate drought, like temperature, sprout late and defoliate early. Young trees should have proper water control.
2018-08-02 -
Three tricks for jujube trees to sit on fruit
First, rational chemical control. Before flowering (around the beginning of May), each big tree was topdressing 0.5 kg urea and 0.25 kg urea per tree, and the compound fertilizer of N, P and K was applied again at the young fruit development period after flowering (mid-late June), about 0.75 kg per tree. Spray 10~50ppm gibberellin solution at the early stage of flowering or in full bloom.
2018-08-02 -
Integrated control of jujube rust
Jujube rust, also known as jujube fog, often causes a large number of fallen leaves during the fruit expansion period, shrinks the diseased jujube fruit, reduces the sugar content in the pulp, and is mostly inedible. Due to the harm of rust, resulting in a serious reduction in production, varieties become inferior, directly affect the economic income of farmers, serious diseased trees early defoliation, there will be secondary sprouting, the impact.
2018-08-02