Planting Technology Lists
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Forage: The main cultivation techniques of European chicory
[Soil preparation and fertilization] Because chicory seeds are small (1000-grain weight is 0.96 g), the soil surface should be finely divided and leveled on the basis of deep ploughing. At the same time, sufficient manure should be applied to 2500~3000 kg per mu. [Sowing] ① Sowing time: chicory is perennial, so the sowing time is not limited by the season, generally from April to October can be sown, above 5 degrees Celsius can be sown.② Sowing quantity: Chicory seeds are fine, sowing quantity is generally 400 g ~500 g per mu, breeding mu
2019-01-15 -
Causes and prevention of dead seedlings of national orchid
The orchid seedling appeared scorched tip, yellow leaf, yellow foot shell, rotten heart, rotten root, rotten Reed head, and finally the whole plant died, which caused huge economic losses to the national orchid boutique investors. orchid friends have different opinions and know the orchid only when it is difficult to raise orchids. the main reasons for investigation and analysis are as follows: first, the fertilizer effect is too heavy. National orchid cultivation plant material should be thin rather than fertilizer, do not worry about insufficient fertility and add too much plant material containing fat, it is found that the cultivated soil is too fat, it should be replaced or technical treatment in time. During the period of national orchid management, if the plant can grow normally, there is no need for it.
2019-01-15 -
Four essentials of Rose Management
Rose is a kind of plant that likes the sun very much. if there is not enough light, it is difficult to blossom. To make the rose blossom all the year round, we must grasp the following four keys. (1) Sunshine should be adequate: the place where rose is planted should not only be ventilated, but also be able to get sunshine for more than half a day, which is the first condition for it to blossom. (2) regular pruning: although the sunshine is good, if it is not pruned for a long time, the rose will not grow well. The method of pruning is to prune the rose leaves when they fall after December, and to trim them every time they bloom after May.
2019-01-15 -
Rose blossoms more often
"one branch only thanks a Yan, since the spring work is not idle." The four seasons of the rose bloom, competing for beauty, the branches are green and red, especially lovable. Rose flowers like fertile water and plenty of sunshine. If you want to make the rose blossom more, you should master its habits and make great efforts in management. Rose flowers need more fertilizer, so more fertilizer should be applied and enough organic fertilizer should be applied before sprouting. For potted rose, the pot should be changed once in early spring, the pot soil formula is: loam 5, rotten leaf soil 2, mature dung 2, sand 1, and then add a small amount of vegetable cake, mix it well. In the future, every 10
2019-01-15 -
Korean pine blister rust
Symptoms: the disease occurs in the skin of branches. At the initial stage of the disease, the susceptible skin swollen and softened slightly, and cracks began at the beginning of May, from which yellow-white blister cysts were produced, which was the sporidium of the pathogen. The sporophore matured orange in the first and middle of June. Since the middle of May, the cyst broke, scattered powdery spores, and finally left a membranous white coating, and gradually scattered and disappeared. By the end of June, most of the blister sacs had been broken, the old diseased skin was rough, and there was often a layer of coal fouling bacteria, showing black. Due to the disease year after year, the skin thickens and thickens, and turpentine flows out. Late August and September
2019-01-15 -
What is the tending management of Pinus koraiensis at seedling stage?
The tending management of Korean pine seedling stage is that the emergence stage of Korean pine takes about 20 to 30 days, and the germination is the most exuberant when the temperature is higher than 16 degrees Celsius. Attention should be paid to spraying water to prevent drought and bird pecking harm. In the seedling stage, the root grows faster, the main root can be up to 10 cm long, accounting for about 40% of the annual growth, and can grow 4 to 5 lateral roots. But the growth of seedling height is very small. Therefore, the resistance of seedlings is very poor, we should pay attention to watering cooling, prevent sunburn, and timely topdressing and loosening soil to weed. From the formation of the terminal bud of Pinus koraiensis seedlings, until the growth rate decreases, it lasts about
2019-01-15 -
needle drop disease of Korean pine
Needle drop disease of Pinus koraiensis is a common disease worldwide. The disease can infect from young trees to big trees, causing early defoliation, affecting growth and causing the death of diseased plants. Symptoms: The disease usually affects 2-year-old needles, and some 1-year-old needles can also be affected. At the beginning of the disease, small yellow spots or segmental spots were produced on the infected needles, and the whole leaves turned yellow and fell off in late autumn. In the spring of the following year, large, black or gray, long oval or elliptical protruding grains appeared on the infected needles, with paint luster and a longitudinal crack in the center, which were asci disks of pathogenic fungi. Some diseased leaves
2019-01-15 -
Rotten skin of Pinus koraiensis
[distribution and harm] the disease occurred in Korean pine (Pinuskoraiensis) plantations in three northeastern provinces. Yanji, Hunchun, Helong, Wangqing, Dunhua, Antu, Longjing and other cities (counties) in Yanbian area of Jilin Province had a serious disease, with a general incidence of 20% to 30%, a seriously diseased forest of 50% to 60%, and a few stands of Maoershan Forest Farm in Yanji City, with an incidence as high as 98.6%. The pathogen invaded the phloem and cambium of the stems and lateral branches of young Korean pine trees, and even reached the surface xylem of sapwood, causing brown rot in the tissue.
2019-01-15 -
bark rot of Korean pine
Pine bark rot disease is also called drooping branch disease, soft branch disease, dead branch disease, withered shoot disease, is a branch ulcer disease, mainly harmful to pine species. Symptoms: The disease harms the bark of the branches of young Korean pine trees, and can also occur at the base of the trunk when it is serious, causing canker disease. The pine needles above the infected parts turned yellow-green to greyish green, and gradually turned brown to reddish brown. The injured branches shrink and wrinkle due to water loss, and the needle drop marks are slightly enlarged. When the lateral branches are diseased, the lateral branches will droop downward. branchlet base diseased, then
2019-01-15 -
Identification and control of red wood bark elephant, a pest of Korean pine
Why is the red wood bark elephant an important pest of young Korean pine trees? Because the larvae of the red wood bark elephant drill under the skin of the branches of Pinus koraiensis, causing the main and lateral shoots to die. It not only affects the growth of Pinus koraiensis, but also makes the branches dry and split, weakens the growth of the tree, and leads to the invasion and harm of other diseases and insect pests. Moreover, because most of the life cycle of the insect is spent under the bark of branches, it is difficult to control. Once it happens in the forest, it may bring serious consequences of deforestation. How to identify the mahogany elephant? The adult is a small beetle, which belongs to
2019-01-15