Planting Technology Lists
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A Method for Rapid Seedling Formation of Euonymus Japonica
1. Reproduction: Cuttage is the main method.(1) Cuttage period The traditional cuttage period is mostly seen from late October to early November in the north, that is, cuttage in dormant period. Because of late cutting season and low temperature, it cannot take root in the current year. It must be transplanted after taking root in the following spring. The transplanting time is postponed accordingly, resulting in short growth period and small growth volume of seedlings in the current year. The seedlings can grow into seedlings in the nursery until the spring and autumn of the fourth year. That is, from cuttage propagation to nursery after two and a half to three years. Shorten seedling cycle for rapid seedling raising
2019-01-15 -
What is the incidence law of Fusarium wilt of Euonymus tomentosa?
The pathogenesis of Fusarium wilt of Euonymus tomentosa: the pathogen is Fusarium oxysporum which exists in the soil. Most of the germs invade from the root wound and can also invade the plant directly. The disease usually begins in the middle of May, and the peak is in July and August, and some plants do not exceed a week from disease to death.
2019-01-15 -
euonymus wilt
Euonymus dahuricus wilt is a common disease of Euonymus dahuricus in recent years. It is characterized by rapid onset, rapid infection and great influence on greening effect. Although this disease is stubborn, if correct measures can be taken, multi-pronged measures against the pathogen can still achieve satisfactory control results. At first, only the upper leaves of individual branches were green and dehydrated, and then the whole branches and whole leaves were green and dehydrated. In the late stage of disease, the leaves are yellow-white, and severely infected plants will cause
2019-01-15 -
Several common diseases and insect pests of Euonymus tomentosa
1. The yellow poplar silk leaf borer larva spun silk to connect the surrounding leaves and twigs as temporary nests, and then ate up the leaves in serious cases, resulting in the death of seedlings. Morphological features: adult body wings are gray-white, the front, outer and trailing edges of the wings are purple-brown wide band, there are two white spots on the leading edge of the purplish brown belt, the scales are shiny, and the purplish red shines. The head of the larva is black, the carcass is yellowish green, the topline, subtopline and valve line are dark green to dark green, and the valve line is orange. Occurrence regularity: 2 to 3 generations a year in the northern region, with larvae
2019-01-15 -
Natural coloring feed for laying hens-pine leaves, black locust leaves, moxa leaves
Pine needle powder: air-dry and crush the pine needle. Generally, the addition of 3% to 5% in the feed can achieve a good color effect, and can increase the laying rate by 13%. Robinia pseudoacacia leaf powder: the addition amount of Robinia pseudoacacia leaf powder accounts for 5% of the feed, the effect is better than pine needle, the egg yolk color can be improved from grade 1 to grade 9, and can remain stable. Moxa leaf powder: moxa leaves contain fat, protein and a variety of amino acids and other nutrients. Adding 2% to 3% moxa leaf powder in chicken diet can increase egg production by 12% to 3%.
2019-01-15 -
Big leaf safflower Robinia pseudoacacia
Robinia pseudoacacia is a multi-purpose Robinia pseudoacacia variety cultivated in Germany. Professor Yang Minsheng of Hebei Agricultural University was introduced to China in 1999 from the German Institute of Forest Genetics and Breeding. it is proved that Robinia pseudoacacia has strong adaptability, can grow normally in the suitable growing area of Robinia pseudoacacia in North China, and shows high economic value. Robinia pseudoacacia has a fast growth rate, with a DBH of 9.5cm at 3-year-old, and a large leaf yield with pinnate leaf length 45~60cm, which is higher than that of tetraploid Robinia pseudoacacia.
2019-01-15 -
Clear cutting and regeneration of Robinia pseudoacacia by ditching with big plough
1. To prepare for the work, the big plough is to use a tractor to drive the big plough to plow the furrow in the felled land of Robinia pseudoacacia, which requires a tractor with high horsepower, and the big plough can use the iron plough used in ordinary farmland, but it requires the use of a single plough. Clean up the branches and big stones in the ground first. two。 The selection of ploughing and trenching requires a concentrated connection of the land, with a slope of less than 25 degrees and a soil layer of more than 30 centimeters. 3. According to the technical requirements, the root distribution of Robinia pseudoacacia is shallow, the main root is not obvious, the lateral root is well developed, and the main lateral root is mostly distributed in the soil with a thickness of 20cm to 30cm.
2019-01-15 -
Robinia
Latin name: Robinia L. English name: Locust Introduction: deciduous trees or shrubs. Bud under petiole. Leaves odd-pinnate; leaflets opposite; stipules spiny; stipule present. Racemes pendulous; calyx 5-toothed, slightly 2-lipped; upper petal suborbicular, recurved, wing incurved, keel incurved; stamens diploid. About 20 species, North America and Mexico. Three species were introduced into China.
2019-01-15 -
How to prepare soil and fertilize Robinia pseudoacacia seedlings?
The method of soil preparation and fertilization of Robinia pseudoacacia seedlings is as follows: the seedling land should be deeply ploughed, preferably in autumn and winter, the top of the following spring is fine raked flat, with a depth of 20 to 30 cm, and stone grass roots are picked out when raking. 4000 to 5000 kg of rotten barnyard manure and 10 to 15 kg of ferrous sulfate are applied per mu to control underground pests.
2019-01-15 -
Seedling raising technique of Robinia pseudoacacia
The main results are as follows: (1) Robinia pseudoacacia seedlings like light and differentiate early, if the seedling density is too high, the differentiation is more obvious, so there should be time seedlings. The first interseedling was carried out when the seedling was high 3-4cm, and then the diseased and weak seedlings were removed, and then according to the growth and density of the seedlings, the seedlings were divided into two times. 15 seedlings should be retained per meter length. It is suitable to keep about 1.2-15000 seedlings per 667m2. (2) do not water Robinia pseudoacacia seedlings before they are unearthed, so as not to harden the topsoil and cause uneven emergence of seedlings. Watering the seedlings at the right time after emergence, often
2019-01-15