Strawberry promotes cultivation management technology

After the initiation of the project of agricultural science and technology in Hushui County in 2011, I was selected as a technical instructor for fruits and vegetables, and the twins were instructed to provide demonstration households of fruit and vegetable technology in the Hongxing Village of the Development Zone. According to the county government's development plan for the strawberry industry during the “12th Five-Year Plan” period, the development zone is one of the five core strawberry production areas in the county. By 2015, it will expand to 2000 acres based on the 500-mu facility strawberry. In order to promote the development of the strawberry industry and accelerate the increase of farmers' income, it is urgent to promote the cultivation and management techniques of strawberry facilities. At present, the strawberry cultivation area in the greenhouse of Hongxing Village is nearly 20 mu, and the average profit per mu of the farmers in the village is 10,000 yuan. The development trend of high yield, high efficiency, and high growth of strawberries cultivated by demonstration households in the village is actively promoted and promoted by the cultivation of strawberry. Management technology laid a good foundation.

Strawberry is a perennial herb of Rosaceae. It is one of the seven fruits in the world. It has the reputation of “fruit queen” and “fruit milk”. VC content is high. In 2008, the average VC content of fruits in Nanjing reached 32.4 mg/kg, as measured by experts. 100g. My county currently has more than 5,000 acres of strawberry planting area, mainly distributed in Honglan Town and Development Zone. The main plant varieties are “Hongyan” and “Fengxiang”. The development zone is mainly based on “Hongyan”, and the cultivation techniques mainly promote high-ridge and double-row four-film covering technologies:

First, planting strong seedlings. 1, soil disinfection: The main use of plastic film covering the sun, high temperature stuffy shed, irrigate soil, rice - strawberry rotation method. 2. Soil preparation and fertilization: In August, soil preparation combined with fertilization and “basal fertilizer application”. Basal fertilizers are mainly organic manures such as chicken manure, pig manure, and cake manure. Fertilizer amount: 3,000 kg per mu of organic fertilizer + ditch diammonium phosphate 60 kg + potassium sulfate 10 kg. After the fertilization, deep-turning - ridges (15cm in height, 30cm in width). 3. Selection of seedlings and colonization: the time of colonization at the beginning of September, select 4-7 pieces of unfolded leaves, thick leaves, stems thicker than 0.8cm, and more than white and thick white virus-free seedlings. Using two rows per ridge colonization, density 6000-7000 strains/mu, row spacing 20cm, plant spacing 15 cm, when planting "deep not buried in the heart, shallow does not reveal roots", the direction of the seedlings back and forth out of the ridge, after planting live Water.

Second, field management. 1, cover film: frost cover before and after the black plastic film insulation, plastic film to tighten the seal. 2, buckle shed: the local use of greenhouses + sheds + arch shed three sheds to cover the way to help strawberry winter, buckle shed time based on the temperature, usually in November began to buckle shed. The optimal growth temperature of strawberry is about 25°C during the day and about 8°C at night, and cannot be lower than 0°C, otherwise it is prone to frost damage. The four-membrane cover promotes the high yield of cultivated strawberry, generally about 1,500 kilograms per mu, and the inflorescences are often used for pumping. The results are continuous, the market is early, the supply period is long, the benefit is high, and the harvest period lasts more than 5 months. 3, fertilizer and water management: re-basal fertilizer on the basis of thin top dressing, top dressing times and times are: 1 top inflorescence top fruit expansion period; 2 top fruit began harvesting; 3 top fruit harvest peak; 4 inflorescence fruit Continue to start harvesting as appropriate. Top dressing combined with irrigation, drip irrigation with black film, can reduce air humidity and reduce the occurrence of pests and diseases. 4, temperature and humidity and light control: the use of greenhouse ventilation switch ventilation to adjust the temperature and humidity, the relative humidity within the shed should be 30-60%, such as excessive humidity in the shed to release lime moisture.

Third, plant management. 1. Picking leaves: timely removal of old leaves in appropriate amounts, timely removal of dead leaves and destruction of deep burial. 2. In addition to stolons, stolons consume parental nutrition, affecting ventilation and light transmission. After the removal, it is beneficial to flower bud differentiation and improve fruit quality. Manual removal or application of chlormequat. 3. Pollination: In order to reduce malformed fruit, 2 boxes of bees were transferred per acre for 5 days before flowering, and they ended when the temperature rose in late March. Tests by experts have demonstrated that bumblebees are more suitable for low-temperature pollination than bees. 4. Thinning and Thinning Fruits: Moderate sparse fruit thinning can increase single fruit weight, maintain uniform fruit size, and early maturity, leaving 10-15 buds per plant.

Fourth, integrated pest management. There are three major diseases in strawberry in the Surabaya region: powdery mildew, gray mold and anthrax. 1, powdery mildew prevention and treatment: before the beginning of the flower with sulfur fumigation, the initial incidence of 50% Tribeca or 12.5% ​​myclobutanil. 2, gray mold: bud - flowering period with 75% chlorothalonil control. 3, anthrax: During the onset of the disease with 50% Suo Keling 800 times and other control. In recent years, insect pests such as locusts and whitefly have frequently occurred, and physical, biological, and chemical defenses have been promoted, mainly using natural enemies and yellow traps.

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