Fu Chenghua, who lives in Quyuanmiao Village, Guizhou Town, Zigui County, Hubei Province, is not only a village cadre but also an expert in orange cultivation. She has a 12 - mu orchard at home, and most of the orange trees have been improved to the Lunwan variety. With scientific management and fertilization over the years, the oranges are growing better and better. When it comes to the improvements in the oranges after using Yishizhuang's citrus formula fertilizer and bio - organic fertilizer (high - calcium - magnesium type) over the years, she has a deep understanding.
In terms of tree vigor: The Lunwan variety has flowers and fruits on the same branch, and its growth period is as long as 13 months. Therefore, fertility and tree vigor are of crucial importance. Fu Chenghua fertilizes twice a year. The combined application of the recovery fertilizer and the fruit - strengthening fertilizer includes at least 4 catties of citrus formula fertilizer and at least 8 catties of bio - organic fertilizer (high - calcium - magnesium type). The effect is excellent. The leaves are dark green and unfolded, with no nutrient deficiency, and the flower quantity is also very good. In her words, "Even after picking the fruits, the trees are still relatively vigorous, and the trees don't suffer much."
In terms of the fruits: The Lunwan oranges have accumulated sweetness over a long time and fully bloom on these tender green branches. We learned from Fu Chenghua that after long - term use of Yishizhuang's citrus package fertilizer, the peel of Lunwan oranges is quite delicate, and the color is very orange - red. In terms of sweetness, they are sweet and juicy, and relatively sweeter than the orchards around her that use other fertilizers. Due to these comprehensive advantages, the purchase price is a few cents higher per catty.
In terms of yield: The planting conditions of Lunwan oranges are very harsh, and the yield per tree is not high. The market is often in short supply. Fu Chenghua told us that the yield of her orchard this year is 4,000 - 5,000 catties more than last year. Economically, she has earned more than 10,000 yuan more, basically achieving zero input.
The effect of Yishizhuang's citrus package fertilizer on Zigui oranges is obvious to all. Then, how to fertilize Lunwan oranges to obtain high - quality fruits? It is recommended to apply 3 - 6 catties of 42% (18 - 8 - 16) Yishizhuang citrus formula fertilizer as base fertilizer, plus 6 - 8 catties of Yishizhuang bio - organic fertilizer (high - calcium - magnesium type), and apply 2 - 4 catties of 40% (15 - 5 - 20) Yishizhuang citrus formula fertilizer as fruit - strengthening fertilizer. (Adjust the fertilization amount according to the fruit - bearing quantity as appropriate)