Nitrogen (N)
Nitrogen promotes the growth of the trees leaves and shoots. An excess of nitrogen is dangerous, causing the the plant develop large, dark leaves and delaying the hardening of the wood.
Nitrogen is an essential ingredient for leaf and stem growth. Too much nitrogen however will make the tree produce long, stringy growth.
Nitrogen Plants use nitrogen to grow foliage and it is used up very quickly by most plants. Lack of nitrogen causes stunting and yellowing of older foliage. This is by no means the only thing that causes yellowing so be careful.
Nitrogen: An essential element of bonsai nutrition and identified by the chemical symbol N; Nitrogen help to develop foliage and stem growth.
Node: The area of a bonsai [trunk or branch] where leaf buds emerge.
O ...
Nitrogen, N, is responsible (partly) for the green color color of the leaves and the elongation and amount of the new growth. It affects leaf size and internode length. Nitrogen is needed for cell division and the manufacture of proteins.
Nitrogen(N) is primarily used by plants for leaf growth, Phosphorous in the form of phosphates (P2O5) is primarily used by plants for root-growth, Potassium in the form of Potash (K20) for flower and fruit production.
FERTILISERS ...
Nitrogen - Essential element that promotes green growth. Identified in fertilizers by the letter N.
Organic - A fertilizer that is not manufactured or synthetic.
pH - A unit of measurement that describes the acid or alkaline level of soil.
Water, nitrogen, and inorganic minerals in soil are absorbed by root hair and
then transferred upwards through the vessels in xylem to the main root,
trunk, branches, and eventually leaves and buds at the shoot ends. Water is ...
-Use a low nitrogen fertilizer during winter, roughly every six weeks.
TIP! - During this growth period, you should conduct finger pinching for shaping, but more on that below.
Re-Potting ...
Black locust has nitrogen-fixing bacteria on its root system; for this reason it can grow on poor soils and is an early colonizer of disturbed areas.
Fertilizer - is "food" for trees, shrubs and plants; usually comprised of NPK: Nitrogen for the foliage, Phosphorous for the roots, and Potassium for the flowers.
28. Foliage pad - a mass of foliage on a branch; sometimes referred to as a cloud.
Ensure that trees are only fed with nitrogen free fertilisers in the period before dormancy. A sprinkling of bone meal on the soil surface of all trees, particularly pines and flowering bonsai, will be beneficial ...
Nitrogen - One of the essential elements of plant nutrition, identified by the chemical symbol N. It promotes above-ground growth, particularly in green tissue in stems and leaves.
Young trees: In the spring feed with a high nitrogen fertiliser; in summer, with a balanced fertiliser; and in early autumn, with a low nitrogen fertiliser.
I will add though, that it is specifically ice (crystal) formation and not freezing that is believed to do the damage, as animal and plant cells can be quickly frozen in liquid nitrogen and have recoveries of greater than 90% on thawing.
Most lawn grasses are vigorous growers and therefore require significantly more nitrogen than the other plants in your yard. A lawn fertilizer would have an analysis of 26-3-3, indicating a fertilizer high in nitrogen.
Blood Meal: This is a very rich source of nitrogen, and also contains several trace elements. Be careful not to overuse this product as it can burn your plants.
Fish Meal: It is high in nitrogen and contains several trace elements.
It is often seen in trees continually fed with high nitrogen feeds. It's unlikely to be seen in a bonsai fed with a well balanced fertiliser.
High Nitrogen feeds promote rapid, soft growth and this, if damaged may allow scab to enter, so watch out.
a fast grower; takes heavy top pruning; don't give extra iron or high Nitrogen fertilizer, especially not well into autumn: that could cause winter twig die-back; when leaf pruning, allow the petiole to remain; ...
The three basic elements of any fertilizer are Nitrogen (N), Phosphorous (P) and Potassium (K), with each element serving different purposes.
For food the miniature bonsai trees would need nitrogen based fertilizer twice a month during the spring and summer and daily watering.
N is chemical denomination for nitrogenous, P for phosphorus and K for potassium, ...
Feed for bonsai should contain three principle ingredients; nitrogen, phosphoric acid, and potash. It is also a good idea to use a fertilizer containing "chelated" iron.
Fertilize with a high nitrogen 30-10-10 fertilizer which will give a deep green color to the foliage; apply every two weeks in the growing season. A lower nitrogen fertilizer like a well-balanced 20-20-20 can also be used.
Feeding: Feed fortnightly; high nitrogen fertiliser from start of growth in Spring until mid-summer. Do not fertilise during the hotter summer days.
- Fertilize once every two weeks from the time the first buds appear in spring until midsummer using a fertilizer with high nitrogen content. This will support the rapid growth that it undergoes during this period.
For outdoor bonsai the feeding regime will consist of high nitrogen during the spring and then balanced feed until late summer.
Half-strength of 20-20-20 NPK (Nitrogen - N, Phosphorus - P, Potassium - K) is common. The Pokon Bonsai Fertilizers from Bonsai Boy provide consistent results and is a preferred nutrient solution, used by experienced bonsai growers.
Also in Spring dig in manure around the plant, or a high nitrogen feed. During the summer months dig in e.g. fish, blood and bonemeal, pelleted chicken manure, or fish emulsion, or use a balanced Liquid feed. Remember fuchsias are greedy feeders.
Carbon dioxide, oxygen and nitrogen need to pass in and out of the plant and soil in order for photosynthesis and other essential biochemical processes to proceed properly.
Fertilizer. As with other conifers, Yeddo spruce needs only nitrogenous fertilizer such as rape cake or soy bean cake, while flowering and fruiting trees need more of other elements.
However, if you plan to grow the Chinese Elm outdoors, then after the buds open in the spring, the tree will need a weekly feeding with high nitrogen for about one month and then every two weeks thereafter until later summer.
In each case, fertilizer with low amounts of nitrogen should be used. There are several different fertilizers available on the market for use.
Fertilizer: Use only enough to keep tree healthy. Generally low in nitrogen.
Container: Keep small to limit growth and encourage small foliage and short internodes.
Potting mix: Should be coarse and fast draining.
You may decide to use only chemical fertilizers on your trees, and that's ok too. Most chemical fertilizers come with an even proportion of Nitrogen, Phosphorus, and Potassium to meet the plants basic requirements, plus added minerals.
Use a fertilizer solution at half the recommended strength and fertilize only after watering the tree. As a legume the tree has the ability, assisted by soil bacteria, to extract nitrogen from the air and use it for growth.
Various fertilizers exist for bonsai, and some artists maintain a very strict feeding schedule, reducing nitrogen content later in the season to discourage new growth.
Do not fertilize for two months after transplanting or repotting. Give acid-loving plants (camellias and azaleas) iron-based fertilizer. Don not fertilize fruit or berry bonsai with strong nitrogen when fruit is forming.
 See also: Bonsai, Plant, Tree, Growing, Root
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