Fertilization Techniques for Garden Seedlings
Fertilization matters of garden trees need to pay attention to
1, Due to the wide distribution of tree roots, the roots absorption
of nutrients and water is mainly reply on the fibrous roots. Therefore, the fertilizer should be applied around the roots but not close to the trunk.
2, Trees with strong roots and have far-reaching distribution should be applied more and larger scope fertilizer. The symbol trees are Pinus tabulaeformis, Ginkgo biloba, Ailanthus and Acacia. Trees with shallow roots should be applied shallow and small scope fertilizer. The symbol trees are Fatong, Amorpha fruticosa, flowering shrubsn and so on.
3, There should be sufficient fermentation and maturity when we chose organic fertilizer. At the same time, we should not use raw manure, and the concentration should be thin, fertilizer must be completely crushed into powder, not into the block.
4, After fertilization (especially chasing fertilizer), trees must be timely and appropriately irrigate, so that fertilizer can surge into the soil.
5, If there will be soil 
fertilization, we should select a sunny day. Due to the roots absorb water slowly, nutrient is not easy to absorb, fertilizer will be lost by the rain when the day is rainy.
6, Sand, slopes, rocks easily lead to nutrient loss, fertilization should be more.
7, The mobility of nitrogen fertilizer in the soil is strong, so little application can make fertilizer penetrate into the root distribution layer and absorbed by trees; the mobility of potash and phosphate is poor, so, when we want to apply such kind of fertilizer, we should apply it to the deepest part of root.
8, the effect of base fertilizer can not play immediately so that it should be applied deeply. While dressing fertilizer effect can play faster so that it should not be applied deeply for the timely absorption of trees.
9,Through the pores and stratum corneum,spraying foliar fertilizerget into the leaves, and then transported to the various organs. Generally, the young leaves but not the old leaves, the leaf back but not the suction, the absorption rate is also high. Therefore, the actual spray must be sprayed on the back of leaves so that it is conducive to the trunk.
10, Foliar spraying should strictly control the concentration, so as not to burn the leaves. The best time to fertilizer is before 10:00am and after 4 pm , the temperature should not be too high, while the solution will be quickly concentrated so that affect the spray or lead to injury.
11, urban landscape green fertilization, in the choice of fertilizer types and fertilization methods should be taken into account does not affect the city health, smell the smell of fertilizer should not be applied.