②Flushing 3000ml of 50% liquid per mu every time;
③Drip irrigation, sprinkler irrigation, shower root 50% liquid 1000-2000ml per mu each time;
④Treat disease, dilute 200-300 times to irrigate roots;
⑤ Foliar spray dilution 600-1000 times
Introduction of specific usage
⑴Using the impregnation method The naked root seedlings of crops, such as strawberries, can be immersed in potassium phosphite solution before planting, which can promote the initial growth of the crop, which is the most critical growth period of the crop. The crop should be dipped for 15-20 minutes so that the solution reaches the core of the crop. It is recommended to use 0.5% diluted solution.
⑵ Using spraying method
a. Fruit trees: spray 2-3 times, from flowering to fruit setting, use every 7-10 days, the dosage is 2-2.5 liters/ha, that is, the dosage per acre is 130-170 ml of 50% potassium phosphite solution . Special suggestion: When the flower bud is particularly weak and the environment is unfavorable, spray the potassium phosphite solution first, and then spray the ordinary foliar fertilizer.
b. Citrus fruit trees: sprayed three times, respectively in spring, early summer and autumn, each dosage is 1.5-2.0 liters/ha.
c. Potato (potato): spray 3-4 times, starting from the growth of tubers, used once every 10 days, the dosage is 3-4 liters/ha.
d. Grape: spray 3-4 times, from the first flowering to bunching, use once a week, the dosage is 3 liters per hectare. e. Strawberry: spray 3-4 times, from the initial flowering to the first fruit setting, the dosage is 3 liters/hectare; in autumn spraying, use water to dilute 1000 times 50% potassium phosphite solution, and the dosage is 12-15 liters/ Hectares.
f. Tomato: spray several times before setting fruit, the dosage is 3L/ha.
g. Cucumber: spray 4-5 times, use 5 litres/ha after planting, once every 2 weeks, 3 litres/ha.
(3) Using irrigation
a. General crops: Potassium phosphite is applied once a week during the entire growth period, especially during adversity, and the dosage is 6-10 litres/ha.
b. Strawberry: A total of 4 applications, from planting to the first fruiting period, the dosage is 8-10 liters.
c. Soil culture flowers (such as chrysanthemum): 2-3 times total application, starting from planting, once a week, the dosage is 10 liters/ha.
d. Crops grown on organic substrates (such as roses and potted plants): During the entire growth period, especially during adversity, potassium phosphite is applied once a week at a dosage of 10 litres/ha.
e. Vegetable crops planted in rockwool (soilless cultivation vegetables): applied twice in total, once immediately after planting, the second time is the initial stage of fruit setting, the dosage is 3-5 liters/hectare, and 3- 5 liters for irrigation.
Today, potassium phosphite has been widely used in North America, Brazil, Israel, Southeast Asia, Taiwan and some European countries and regions, and has achieved very good results. Especially in green and pollution-free vegetables, fruits and high-end ornamental cash crops, potassium phosphite is welcomed by the majority of farmers.
Qingdao Regreen Biotechnology Co., Ltd. is located in Qingdao, a beautiful coastal city in China. The branch is located in Binzhou City, Shandong Province. It is responsible for product development and production. Quantity elements, trace elements, containing amino acids, humic acid, alginic acid, taurine, chitin type, among them calcium calcium phosphate, liquid potassium phosphite, liquid potassium polyphosphate, amino acid potassium polyphosphate, taurine bayfish peptide, Calcium boron mixture is the international leader. All staff of Qingdao Zailu look forward to your cooperation!