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Thermoforming Plastic Seed Trays Manufacturers Vietnam

According to the results of plant analysis(14 gallon nursery pots wholesale), there are dozens of chemical elements that make up the dry matter in plants, among which there are 15 kinds of chemical elements, and the fertilizer effect is slow, such as carbon (c), oxygen (0), hydrogen (H), nitrogen (n), phosphorus (P), Shi (k), calcium (CA), magnesium (mg), sulfur (s), iron (FE)(plastic bonsai pots wholesale), manganese (MA), egg (b), copper (Cu), zinc (ZM) and button (MO).

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Plants need the most amount of nitrogen, the quality of seedlings will be reduced(15 cell propagation trays wholesale), so it is generally called nitrogen, phosphorus and potassium as the three elements of fertilizer, also known as a large number of elements. The alkali and oxygen in these chemical elements can be obtained from the air by the seedlings(120mm plastic grow pots), and other chemical elements are absorbed from the soil by the roots of the seedlings.(thermoforming plastic seed trays manufacturers vietnam)

The distance from the side row to the side row of the two adjacent belts is called the belt spacing(21 cell propagation trays wholesale), which is determined by the power used and the type of livestock, etc. the large row spacing of field seedling, the good lighting and ventilation conditions of seedlings, the good quality of seedlings, but the low yield of seedlings(1.5 gallon nursery pots). The chemical elements needed for seedling growth are within the above range. 

(thermoforming plastic seed trays manufacturers vietnam)Seedlings need more nitrogen, phosphorus and potassium, but the content of soil is insufficient(32 cell propagation trays wholesale). If the three elements of fertilizer are lacked for a long time, the normal growth of seedlings will be seriously affected, and the number of qualified seedlings will be greatly reduced(12.5cm plastic grow pots). In order to complete a rotation cycle, the specific arrangement of seedling land and body idle land is called rotation system. 

According to the data provided by the former Soviet Union foresters(50 cell propagation trays wholesale), there are pine seedlings and barley planting two plots of land, all of which are annual seedlings, with 2.8 million seedlings per hectare. In one year, the pine seedling land consumes 37 kg of nitrogen, 10.3 kg of phosphorus, 19.1 kg of nitrogen, 6.4 kg of phosphorus and 15.4 kg of potassium(1 gallon plastic nursery pots). Therefore, it is necessary to apply fertilizer to the forest seedling enclosure.

The experiment of fertilization with the seedlings of Pinus tabulaeformis, Platycladus orientalis, Populus microphylla, etc(98 cell propagation trays wholesale). and the cuttings of Populus Populus shows that the effect of fertilization is obvious. Some people think that it is necessary to apply fertilizer to the farmland, but it is not necessary to apply fertilizer to the seedlings(rootmaker propagation trays). Other elements need little, phosphorus and potassium, so they are called trace elements.(thermoforming plastic seed trays manufacturers vietnam)

The reason for this idea is that they do not know the consumption of soil nutrients by the seedlings(105 cell propagation trays wholesale). Therefore, there is a lot of nutrient consumption in the soil after seedling cultivation, but the organic matter left in the soil is too little. Therefore, scientific fertilization must be carried out in the nursery to add organic and inorganic fertilizers to the solid soil to supplement the deficiency of nutrients in the soil(one gallon pot).

(thermoforming plastic seed trays manufacturers vietnam)Organic fertilizer is called organic fertilizer, such as compost, fertilizer, green fertilizer, peat (peat), humus, human manure, poultry, seabird manure, oil cake and fish meal(128 cell propagation trays wholesale). Organic fertilizer contains many elements, so it is called complete fertilizer(2 gallon pots wholesale). Because organic matter can only be absorbed and utilized by plants through the decomposition of soil microorganisms, it is also called slow effect fertilizer.

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