"Eight Essentials" in the Management of Strawberry Flower and Fruit Period in Shed

First, spray gibberellin to increase the temperature, when the plant grows 1-2 pieces of young leaves, spray 10-20×10-6 gibberellin, spray 5 ml of liquid per plant, interval 1 week, according to the growth potential Weakly spray 2-3 times as appropriate to promote growth and development.

Second, it is necessary to put a bee to promote pollination. Strawberry pollination is easy to produce deformed fruit and fruit set is not neat. If 1-2 boxes of bees are stocked in the shed, the fruit setting rate can be significantly improved and the occurrence of deformed fruit can be reduced. The bee-keeping time is carried out throughout the flowering period. The stocking amount is preferably 2 beehives per acre. During the pollination period, the daytime temperature in the shed is kept at 20-25 °C.

Third, moderate buds should be moderately budded, which can increase the weight of single fruit, increase the fruit yield, even the size of the fruit, early maturity, concentrated harvesting period, and reduced harvesting times, thus increasing production and increasing value. The results of the low-grade secondary flowers that were first opened by strawberries were good, the fruit was large, mature and early, and the price was high. As the flower level increases, it is often impossible to form a fruit after flowering and become an ineffective flower, or even if some form a fruit, it is ineffective because it is too small to have a harvest value. Therefore, when the flower bud is separated to the first or second order flower opening, the unopened flower buds are removed according to the defined amount of fruit remaining.

Fourth, we must remove the old leaves and the new leaves are constantly occurring in the year, and the old leaves are constantly forming. The old leaves have more substances that inhibit flower bud differentiation and the nutrient consumption is greater than the photosynthetic accumulation; the diseased leaves are easy to spread and spread. Therefore, the old leaves should be removed in due course and appropriate, and the residual leaves and diseased leaves should be removed in time, and they should be taken out of the garden for destruction or deep burial, thereby promoting flower bud differentiation, reducing nutrient consumption, improving ventilation and light transmission, improving photosynthesis efficiency, and reducing pests and diseases. Occurs, which is conducive to the growth and development of strawberry plants.

The fruit of the strawberry is short, and the fruit is easy to touch the ground after fruit setting. It is easy to cause the fruit to be contaminated by soil and pests, and it is easy to cause uneven coloration of the fruit and affect the quality of the fruit. Therefore, it is necessary to lay fruit. Strawberry fruit is best covered with a mulch film, combined with soil management, in one fell swoop. There is no mulch, and you can also lay chopped straw or wheat straw on the bud. The fruit material should be removed in time after fruit harvesting, in order to facilitate field management such as cultivating and fertilizing.

Sixth, in addition to stems and stems, the stems of the strawberry stems consume the nutrients of the mother plants, which tends to make the plants closed and crowded, affecting ventilation and light transmission. Therefore, the removal of the stalks of the dianthus can obviously avoid consumption, improve light, facilitate flower bud differentiation, enhance wintering ability, and improve fruit yield and quality. The stolons that occur during fruit development should be removed promptly. Manual removal of the stolons, try paclobutrazol, chlorophyll or chlormequat to inhibit the occurrence of stolons. Removal of stolons can be carried out in combination with cultivating, cultivating, and picking leaves. High-grade inflorescences are prone to male and female, and the removal of certain high-grade secondary flowers after flowering can not only reduce the rate of deformed fruit, but also facilitate the development of low-level secondary flowers and nutrients, increase the fruit and improve the uniformity. It is worth noting that in the cold winter, the water used for fertilizer should be adjusted to the temperature close to the shed as much as possible. After the strawberry in the greenhouse, the door and window or the membrane should be ventilated in a timely and appropriate manner to reduce the shed. humidity.

Seven to foliar spray fertilizer strawberry foliar topdressing has the advantages of low cost, high fertilizer utilization rate, fast fertilizer efficiency, increased yield, excellent quality, low input and high return rate. Generally, boron fertilizer is sprayed during the strawberry flowering period in the greenhouse, and potassium dihydrogen phosphate plus urea or sodium superphosphate and urea is sprayed when the fruit is expanded. At the same time, it is better to choose 2-3 pm on sunny days; once every 10-15 days, even 2-3 times. In order to prevent waste and fertilizer damage, the concentration and dosage must be controlled. The concentration of each relevant fertilizer should be controlled at: urea 0.3%-0.5%, superphosphate 2%-4%, potassium dihydrogen phosphate 0.25-0.4%, boron fertilizer 0.05-0.1% a. Generally 30-40 kg of fertilizing solution per mu.

Eight to prevent disease and control insects to prevent leaf spot, powdery mildew and gray mold in flowering stage, spray 50% carbendazim 500 times solution, 70% methyl thiophanate 1000 times solution, 20% powder rust spirit emulsion 1500 times Liquid, etc. The control of aphids can be sprayed with 50% anti-converse WP 2000-3000 times solution; for the control of red spiders, 5% Nisolon EC 2000 times should be sprayed.