Assisted Flower Spring Broadcasting
In April, Chongqing's flower-bearing economy was in full swing, beautiful people, pansies, cherry blossoms, peach blossoms, and primroses... all flowery and charming. In many flower-seeing tourist destinations, colorful tulips mostly sing the protagonist, from the road decoration to the open field flower field, from the balcony of the community to the city park, almost all can see its gorgeous figure. However, the spring temperature in our city has risen faster and the tulip seed ball lacks enough nutrient growth time. How can we make the opening more beautiful? Recently, the city's flower experts specially directed farmers.
"The tulip is a perennial bulbous flower. It is the national flower of the Netherlands, Turkey, Kazakhstan and other countries. It is a symbol of elegance, richness and love. It is a symbol of elegance, richness and love." The flower cultivation expert of the Xinglong Huahai Scenic Area in Northern Fujian told the reporter.
The soil in Chongqing is mostly red-yellow-purple soil and gray-brown soil. Its texture is more viscous and not particularly advantageous for the growth of tulips. At the same time, the city belongs to a subtropical humid monsoon climate, hot and bright in summer, warm in winter, and early and short in spring. This climate characteristic is obviously different from the main producing area of ​​the Netherlands. The average annual temperature is higher than in the Netherlands. Sometimes the temperature in Chongqing in April even reaches the temperature in the Netherlands in July. Especially in spring of Chongqing, the temperature rises quickly, and the upper part of the tulips in many places is warmer. At the end of April, withering began, the absorption capacity of the roots weakened, and the bulbs went dormant; in the Netherlands, bulbs were generally harvested from the end of June to July. Therefore, the breeding of tulips in the open field of Chongqing can not meet the time required for the growth of the sub-balls, and it is difficult to reproduce the bulbs, and the cost is high.
In recent years, with the efforts of flower experts, the variety and planting area of ​​tulips in our city have increased. “According to incomplete statistics, there are currently more than 80 varieties of tulips cultivated in Chongqing. Tulips cultivated in scenic spots and parks in our city are mainly potted or transplanted, and most of them are planted once, and they are not propagated. Ball.†The flower expert of Xinglong Huahai said. Text/graph reporter Han Yi
Ball purchase
Due to the city's climate and soil restrictions, it is difficult and costly for growers to breed their own bulbs. Therefore, most bulbs need to be purchased. Abba, Brenda, Golden Emperor, Guta, Dutch Light, Iraqi and other hybrids are more adaptable to the Chongqing area. After buying bulbs, they must be sterilized first, and 70% thiophanate-methyl can be used. , 50% carbendazim and other agents, soak the ball for 30-40 minutes, and then dry and plant.
Many pots do not reproduce
Soil transformation
Due to the strong viscosity of red-yellow purple soil and gray brown mud in our city, natural open-air planting of tulips is not effective, and potting techniques can be used. Potted soil is prepared from humus, animal excrement, sawdust, peat, soil, etc. Potted soil is required to have good permeability and ability to retain water and fertility, and the pH value of the soil is neutral and slightly alkaline. Before planting, the soil needs to be disinfected, and carbendazim, thiophanate-methyl, and hymexazol may be used to mix the soil.
Planting time
The development of the roots of tulips is greatly affected by temperature, and the vegetative growth period after planting must be taken into consideration. The optimum rooting temperature of the tulip is 6-9 degrees Celsius. Therefore, it is generally selectable from late November to December. Planting too early, due to the high temperature of the city, it is easy to cause early emergence of young shoots, early consumption of nutrients, and is not conducive to safe wintering plants; too late planting, it may lead to lack of low temperature period, while the soil temperature is low, affecting root development It is not conducive to the growth of bulbs.
Seedling management
After the cultivation of the bulbs of the tulip, the development of the root system was completed. Under the natural climatic environment of the city, its above-ground parts almost stopped growing and entered the natural low temperature stage. Therefore, the seedling management is relatively simple, focusing on water management, and keeping the soil moist. In March of the following year, tulips in our city generally entered the flowering period. Due to the rapid warming of the temperature, the transpiration and respiration of the plants are strengthened, and watering is needed to extend the flowering period as much as possible.
Pest control
The main pests and diseases of tulip planted in our city are tulip gray tulip, which is prone to this disease in continuous rainy weather. At the beginning of the disease, it was light brown and irregularly spotted and gradually turned brown, sag, and rot. The degree of occurrence of the disease is closely related to the planting conditions. Plants that are densely planted, have excessive humidity, and lack of light can cause disease. The specific prevention and control measures include the use of carbendazim, thiophanate-methyl, and Preclovir at the initial stage of the disease, spraying once every 10 to 15 days. The specific number and dosage of sprays depend on the condition and temperature.
In the past few days, the villagers of Heping Village and Heping Village in Dazu District have sprayed herbicides to remove the weeds. It is understood that due to the local rainwater in spring this year, the weeds in the park have affected the results. For this reason, agricultural technicians go to the orchard to guide the farmers and spray the roots of crops that do not absorb, transmit, or hide the environmental herbicides, not only suppressing the growth of weeds, but also ensuring that the crops increase yields.
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