The management mode of national orchid fattening since December

Attention should be paid to the damage caused by the cold spell to the plant during the season of weak light and low temperature in December. Improving the application of potash fertilizer can increase the resistance to adverse stress and balance the photosynthesis of plants in the environment of insufficient light.

In the "deep dormancy" season of the reproductive growth stage of the national orchid, the use of fertilizer should be based on thin fertilizer and leaf fertilizer as much as possible.

Fertilizer management in December should focus on assimilating the carbohydrates produced by the national orchid plant during the maximum period of photosynthesis to the corm, making the bulb large, and adjusting the nutrient element content of the plant. avoid excessive growth inhibition factors (phosphate fertilizer content) affecting bud differentiation and spring growth.

1. When the "finger ring" appears on the last stem and leaf, the new leaf color changes to dark green, the epidermis is bright, and the leaf pants are cracked and yellowed. Use "nourishing" organic nutrients 3000 times as much as "live bacteria BS" phosphate-solubilizing bacteria and 25:10:20 chemical fertilizer 40O0 times every 15 to 20 days.

two。 When the leaf trousers have cracked and the new autumn buds grow to 3 to 4 minutes of wood, in order to make the new buds of the national orchid grow vigorously in the future, phosphate fertilizer supplement should be adjusted. At this time, "replenish" 4O00 should be used to add 1000 times of "live bacteria BS" and 4000 times of chemical fertilizer at 20:20:20.

3. When the flower bud extends from 2 to 3 centimeters of water moss, in order to make the flower stem have enough nutrients to supply its development, every 15 people should use 4000 times of "replenishment" and 1000 times of "live bacteria" and 4000 times of chemical fertilizer at 10:30:10. (Wang Huaigen)