Spring strawberry enters full fruit period and strengthens field control against cold wave
Every year from March to May is a time when a large number of spring strawberries are listed. However, due to the cold wave of the recent period, many strawberries appear necrosis during the growth process, or grow into malformed fruit due to lack of pollination. Relevant experts suggest that growers should further strengthen field management before the spring strawberries are harvested during fruit harvesting, and further strengthen field management, including timely flowering, fruit thinning, removal of frozen fruit and fruit, timely fertilizer supplementation, and prevention of pests and diseases. Strengthen shed film management. Poorly pollinated fruit is easily deformed It is generally believed that the abnormal fruit of strawberry is formed by the influence of pesticides. In fact, the lack of pollination is the main reason for its formation. The low temperature is an important cause of strawberry pollination. In response to this situation, growers must first spend time sparsely. The specific method is: in the bud separation period, the final formation of buds should be sparse in order to remove about 20% of the inflorescence is appropriate, weak flower sequence does not have to remain. Thinning fruit is a period of young fruit blue, remove deformed fruit, disease and fruit. Thinning fruit is a supplement to sparse flower buds, which can make the fruit shape neat and increase the commodity rate. At present, spring strawberries in most regions have entered the peak of growth. In addition, they need to be supplemented with nutrients to increase the fruit setting rate after being frozen. They should be top-dressed in time. The roots of strawberries are shallow and sensitive to the response of fertilizers. Therefore, ammonium bicarbonate and sulfur should not be used. Ammonium and other fertilizers, but mainly urea, compound fertilizer. Fat tree fertilizer with urea 10 kg to 15 kg per mu or compound fertilizer 20 kg to 30 kg is appropriate, before flowering before the flowering topdressing, 10 kg of compound fertilizer per acre, every 10 days to 15 days of fertilization once . After the flowering results, the main supplemented foliar fertilizers were sprayed on the strawberry leaves with 0.3% to 0.5% potassium dihydrogen phosphate solution for 2 to 3 times. It is worth noting that strawberries have high requirements for water, so they must be combined with irrigation and drought while topdressing. Generally, it is poured once before budding, and the fruits are enlarged and matured. Moisture should be supplied in time according to field conditions. Every time the amount of water should be appropriate, must not flood irrigation. After entering the spring, as the temperature rises, various strawberry diseases and pests will also enter the high incidence period, and the prevention and control of strawberry pests and diseases is mainly to prevent and control. For fungal diseases such as gray mold, leaf spot, bud blight, etc., Bordeaux's solution, zeocin, thiophanate-methyl, carbendazim and other agents can be sprayed and sprayed. Viral disease is mainly transmitted by aphids and it is important to prevent and control aphids. In addition, underground tigers, earthworms, and other underground pests can be poisoned with a phosphazone 1000- to 1500-fold solution, and can be sprayed and killed by Red spiders. Note that the use of pesticides is prohibited during fruit ripening. Half Shell Mussel,Frozen Cooked Half Shell Mussel,Seafood Frozen Half Shell Mussel,Frozen Half Shell Mussel Shengsi Huali Aquatic Products Co.,Ltd , https://www.mytilus-edulis.com
The peak of growth timely irrigation fertilizer
Temperature rise early prevention of pests and diseases
For the prevention and control of pests and diseases, in addition to selection of pest-resistant species, virus-free seedlings, etc., the diseased leaves and fruit must be removed in time and burned in a concentrated manner; in the period of flowering and fruit growth, good ventilation should be maintained, and the amount of wind protection should be increased to maintain the shed. The humidity is below 50%.