Fertilization techniques for young trees with yellow bark

Young wampee trees grow vigorously and need a lot of nutrients to meet the needs of plant growth. at this time, fertilization can accelerate its vegetative growth and promote its early fruiting and high yield. But the root system of young trees is underdeveloped and the distribution is shallow, so we should also pay attention to the main points of fertilization. let's take a look at the fertilization methods of yellow young trees with Xiaobian.

1. Principles of fertilization

Young wampee trees quickly form roots and crowns after planting, which can promote new shoots 3-4 times a year, and plants with prosperous growth often begin to bear fruit after planting for 1-2 years. At this time, fertilization should take the principle of frequent application of thin fertilizer to avoid thick fertilizer to hurt roots, but also to prevent young trees from overgrowing, which is not conducive to flower bud differentiation and flowering and fruiting. And fertilization is mainly nitrogen fertilizer, reasonable collocation of phosphorus and potassium fertilizer and calcium and magnesium and other micro-fertilizer.

2. Fertilization time

Young wampee trees can begin to fertilize after one month of survival, and then fertilize before and after the new shoots turn green every time, the first two times are soil fertilization, and the last one is outside the root. Fertilization before shoot germination can promote new shoot elongation and leaf expansion, and fertilization during the green period can promote the green of new shoot leaves, effectively improve photosynthetic efficiency and make branches sturdy. Fertilization after turning green can accelerate the ripening of new shoots, increase the thickness of leaves and the accumulation of organic matter, and shorten the shoot period. in addition, organic fertilizer should be deeply applied combined with hole expansion and soil improvement in winter to strengthen nutrition reserve.

3. Fertilization method

The absorbing roots of yellow bark are mostly distributed at 40 cm outside the crown dripping line, so fertilization should be near the crown dripping line in order to facilitate the depth and breadth growth of roots and absorbing roots. Quick-acting fertilizer per hour should be applied shallowly, while organic fertilizer should be applied deeply, which can be applied by ring ditch, hole application, radial ditch application, strip ditch application and so on. Extra-root fertilization, also known as foliar spraying, is the use of sprayers to spray fertilizer on the leaves. This method of fertilization uses less fertilizer, has a quick effect, and can quickly replenish nutrients for plants.

4. Fertilizer application amount

Dry application of chemical fertilizer generally applies 75-100 grams of compound fertilizer or 50-75 grams of urea per plant, while the amount of water and fertilizer is different. Take mature human feces and urine or 20 times of mature bran fertilizer as an example, generally 5 kilograms per plant, or 55 grams of urea and 55 grams of compound fertilizer are drenched with 5 liters of water.

The above is the introduction of fertilization technology for young wampee trees. I hope it can help you. If you want to know more about it, please follow us.