Flower identification methods: teaching you to know flowers by looking at them

For flowers to grow and bloom well, they must have adequate nutrition, so fertilizer should be added in a timely manner. Generally, during the growth and development of flowers, if a certain nutrient element is insufficient, a deficiency symptom of that nutrient will appear on the plant, that is, a certain symptom will appear on the plant. In home gardening, if you can master this method of diagnosing nutrient deficiencies, you can treat the cause accordingly, supplement fertilizer, and let the potted flowers grow healthily and vigorously again. Below are the symptoms that plants may show when several major nutrient elements are deficient:

1. Nitrogen deficiency: the plant's leaves turn yellow or even dry up, the leaves are small, and the plant is thin and small. The stems are slender and weak and may split, and the number of flowers is sparse.

Second, phosphorus deficiency: the leaf color is dark green and growth is delayed. The areas between the veins of the lower leaves turn yellow, often with a purple tinge, especially on the petioles, and the leaves fall early. The flowers are small and few, the flower color is poor, and the fruit develops poorly.

Third, potassium deficiency: the lower leaves have diseased spots, and dead parts often appear at the leaf tips and leaf margins. The yellowed area spreads from the margins toward the center, after which the marginal parts turn brown and shrivel downward, and the lower leaves and old leaves fall off.

Fourth, magnesium deficiency: the lower leaves turn yellow, and in the late stage dead spots often appear; the yellowing appears between the veins, the veins remain green, the leaf margins curl upward or downward and become shriveled, and dead spots often appear between the veins within a single day.

Fifth, calcium deficiency: the tips and margins of young leaves rot, and the leaf tips of young leaves often form a hook shape. The root system has already died before the above symptoms appear. The terminal bud usually dies.

Sixth, iron deficiency: the symptoms occur on new leaves, with yellowing between the veins while the veins remain green. Diseased spots do not often appear. In severe cases, the leaf margins and leaf tips dry up, sometimes spreading inward to form a relatively large area, with only the larger veins remaining green.

Seventh, manganese deficiency: the symptoms occur on new leaves, diseased spots usually appear and are distributed over the entire leaf surface, and the very fine veins remain green, forming a fine network. The flowers are small and the flower color is poor.

What organic fertilizers are commonly used for potted flowers? How to make organic fertilizer at home when growing flowers.

Organic fertilizer is very beneficial to the growth and development of flowers and trees. In addition to being decomposed by microorganisms to release nutrient elements that can be absorbed by the root system, it can also improve the structure of the soil and increase the soil's water- and fertilizer-retention and permeability. There are many kinds of organic fertilizers, usually divided into two major categories: animal-based organic fertilizers and plant-based organic fertilizers. The main several organic fertilizers are introduced below:

1. Barnyard manure: that is, the dung of livestock, mixed with leftover forage or feed. It contains mostly nitrogen, and also a certain amount of phosphorus and potassium.

Second, chicken and duck manure: chicken and duck manure and the manure of other poultry are a main source of phosphorus fertilizer, suitable for all kinds of flowers, and especially suitable for fruit-ornamental flowers.

Third, plant ash: the ash produced by burning dead branches and weeds, etc. It contains relatively more potassium and is a main source of potassium fertilizer. It is an alkaline fertilizer.

Fourth, peanut bran or peanut cake: it contains relatively more nitrogen and also contains phosphorus and potassium. It is cleaner and more hygienic than animal manure.

Fifth, bone meal: it is one of the main sources of phosphorus fertilizer.

In home gardening, especially in cities, some flower growers often feel that they cannot obtain organic fertilizer. In fact, as long as you pay attention to collecting it regularly and promptly, you can make organic fertilizer. For example, vegetable leaves, bean shells, and melon and fruit peels can be put into a jar or vat, covered and sealed, and after 2 to 3 months of fermentation and decomposition, they become very good fertilizer. Spoiled soybeans, peanuts, etc., after being cooked, as well as fish innards, fish bones, etc., can be placed in a vat, with water added, and after fermenting and decomposing, they can also become high-efficiency, high-quality organic fertilizer with not-low nitrogen, phosphorus, and potassium content. Be sure to use them only after they are thoroughly decomposed.