In spring, as the temperature warms up and the wind increases, the water transpiration of the leaves in the greenhouse increases, the root activity is stimulated, the plant growth rate is accelerated, the number of fresh cut flowers is increased; the short branch and weak branches are shortened, the flower buds are early, and the lower flowers are The number is increased; the germination of cut flowers is accelerated, the number of buds is increased, and the number of buds at low nodes is also increased. At the same time, the level of low-temperature oligo-irradiation diseases such as downy mildew and gray mold is reduced, the pathogenesis of airborne powdery mildew is sick, and physiological diseases appear; the sucking pests such as mites, aphids, and thrips cause poor plant growth; In addition, the unstable temperature in the spring also brings inconvenience to the production management of the greenhouse in the spring.
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Talking about the Production Management of Spring Greenhouse Rose
In view of the above problems, the author combines the growth characteristics of the greenhouse and the natural environment conditions in the spring, and proposes several production management measures for the reference of producers.
Greenhouse Management
Clean the weeds around the greenhouse and ensure that the greenhouses are clean to prevent pests and diseases; repair the irrigation and drainage system to ensure smooth irrigation and drainage; repair the greenhouses, timely insulate and moisturize the greenhouses, cool down and damp.
Plant finishing
In the early spring, combined with fresh cut flowers, according to the size of the plant population, the old piles and weak branches are cleaned up, and each plant retains 2 to 3 strong flowering piles of 25 cm to 35 cm high; in the middle of the spring, the weak buds and multiple buds are cleaned; in late spring, Timely pruning. Through the above operations, it is beneficial to reduce the number of pests and diseases, and promote the germination of the plants under the strong buds, laying the foundation for the high quality and high yield of cut flowers.
Fertilizing soil
In the spring, the greenhouse rose has been growing in the shed for more than half a year, and the soil fertility and physicochemical properties of the cultivation have been significantly reduced. In order to ensure the stability of product quality after spring, soil must be fertilized to improve soil rationality and prevent soil aging. The specific method is: after the completion of the pruning in the mid-spring season, the crushed crops and the farmer's manure are mixed and cooked, and applied to the noodles, and the amount per acre is 3 to 4 tons.
Water and Fertilizer Management
In the spring greenhouse production, water and fertilizer management is related to the quality of the products and the production costs. First of all, this work should be based on fertilizing the soil, improving the physical and chemical properties of the soil, and managing the soil moisture according to weather changes.
In the early spring, during the pruning of the soil, the management of water and fertilizer should be based on no or less application, keeping the lyrics dry, which is conducive to farm work and resistance to early spring cold. Zhongchun, appropriate application of water and fertilizer, usually apply a thin water fertilizer every 3 to 5 days. At the end of spring, water and fertilizer are usually applied every 2 to 3 days, and a small amount of diligence is used to ensure that the plants need water and fertilizer. At the same time, the daytime temperature in the shed should be reduced to 25 ° C to 28 ° C, increase the relative humidity of the air to 55% to 65% to inhibit the increase of soil EC value, to ensure healthy growth of plants.
Pest Control
In the spring greenhouse, the prevention of pests and diseases should be based on the management of the greenhouse in the early spring, pruning and fertilizing the soil, and eradicate the pests and diseases as early as possible to create a robust environment for plant growth. The specific method is:
1. In the early spring, clean up the weeds in the field, clean up the plant population, and concentrate on burning the cleared leaves. For the cleaned plants, spray the broad-spectrum insecticides, such as 45% stone sulfur mixture crystals, copper ammonium mixture, Bordeaux mixture, and the like. When using the above pesticides, it is necessary to determine the spraying concentration and the use time according to the plant's youngness to ensure the safety of the medication.
2. According to the youngness of the plant, choose the powdery fungicide for the white powder, choose the green tea for the young leaves, and use triadimefon or thirteen. In the early stage of powdery mildew, spray 2 to 3 times.
3. The prevention of cockroach pests can destroy the living environment of mites by clearing branches and leaves, and alternately use insecticides such as worm mites, ketone, and mulberry in the initial stage of mites for 2 to 3 times.
4. Insert yellow sticky board and blue sticky board in the shed to trap adult insects.
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