Rose Spring Management has the following main points:
1. Soil management Soil is the basis for the growth of roses. The purpose of soil management is to create good environmental conditions for the growth and development of rose roots, and to increase the ability of roots to absorb water and fertilizer to promote the robust growth of shoots in the shoots. For rose plants planted on the slope or in terraces, 80% of the roots are horizontal roots, so as to increase the rhizosphere soil thickness and create favorable conditions for the growth of the roots. In the early spring, the ramets of uncultivated arbors in the fall should be earthed. The thickness of the soil is about 4 cm to 8 cm. This thickens the soil layers of the flowers, and also leaves fallen leaves and weeds buried in the earth. After rot, the soil humus is increased, and the diseased leaves are buried in the soil, which also reduces the spread of germs. The grafted rose planted in Daejeon, due to the developed vertical root system of its rootstock, creates a good environment for its growth, and combines the intercroppings to deepen the soil. It is advisable to make the depth 40 cm to 60 cm deep. Injured rose roots.
Rose is a strong positive tree species. In order to ensure the normal growth of rose, it is necessary to thoroughly remove perennial perennial weeds and creeping plants (people commonly known as pull puller) in the flowers in conjunction with soil management. Especially, the creeping plants occupy the upper layer of the whole rose season. Covering the rose, covering the shade and competing for soil nutrients and moisture, the rose grows weak due to lack of light and lack of water and fertilizer, induces pests and diseases, and causes roses to die.
Second, water and fertilizer management Early spring when the average temperature stabilized at 3 °C to 5 °C, rose buds began to sprout, but at this time is also a crucial period for the formation of rose bud differentiation. Differentiation of flower buds, bud formation, and large amount of nutrients stored during the previous year have led to the urgent need for adequate water supply to the root system to maintain growth and development.
For ramets rose, urea and diammonium phosphate are applied to the flowers in combination with earth. The grafted roses in Daejeon can be applied to organic fertilizer in combination with intercropping. The amount of urea and diammonium phosphate is 10 kg to 15 kg. In order to speed up the fertilizer effect, root-spraying fertilizer can also be applied in early April after the growth of rose leaves. The specific approach is to dilute urea or diammonium phosphate to a fertilizer solution with a concentration of 0.3% to 0.5% and spray directly on the leaves in the morning or in the evening without wind. Remember not to spray at sunny noon so as not to damage the leaves. In order to ensure the water needed for the growth and development of spring roses, we should pay special attention to the work of earth-cultivation to increase the thickness of soil in order to preserve the soil moisture for the nascent rose without irrigated conditions; the conditional rose garden should be sprouted in the rose and the leaves should be displayed. Pour 2 to 3 times of water.
III. Pest control pests Rose pests and diseases mainly include rust, scarabs and yellow-spotted blue longicorn. Their prevention and control are described as follows: Rust: The main damage to the rose leaves, spring infestation buds with rose buds become malformed, and There is a layer of yellow powder covering the buds. At this time, the diseased buds should be removed and then buried deeply.
Scarab: The main damage to the rose is the black, black velvet beetle. The people are commonly known as "bumpers." Every year in early April, activities begin to eat roses buds and leaves, a great harm to the rose, when serious roses will be produced, should pay special attention to prevention and treatment. Each year, when the buds of roses are sprouted, attention should be paid to observation. When this insect is found, it can spray 40% omethoate 1000 times or 50% phoxim 1000 times to 1500 times; it can also use its suspended animation feature to quake and concentrate to kill.
Yellow-banded blue-skin beetle: It is a devastating pest of roses, and its larvae dig into the stalk roots of roses, often causing large pieces of roses to die. In the spring of April, the wintering larvae of the worm began to be active. At this time, the larvae of the larvae should be inspected frequently. When the rosacea excretion of the rose plants was found, the larvae were cut and the larvae were killed.
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