Special fertilizer for float seedling raising of tobacco

Abstract

The invention relates to the field of a fertilizer, and specifically relates to a special fertilizer for float seedling raising of tobacco, which comprises the main components: 15-20% of potassium dihydrogen phosphate, 18-22% of potassium nitrate, 6-10% of potassium sulfate, 40-45% of ammonium nitrate, 6-10% of copper sulfate, 0.1-0.3% of zinc sulfate, 0.1-0.3% of borax, 0.1-0.3% of ammonium molybdate and 0.1-0.3% of iron chelate. According to the invention, the ratio of the nutrient components conforms with the fertilizer requiring rule of tobacco seedlings, and the elementary components are coordinated with each other, so that the absorption and conversion of various nutritive elements are facilitated and the growth and development of the tobacco seedling root system are obviously promoted; and under the same conditions, compared with other fertilizer, the fertilizer has the advantages that the early growth is rapid, the root system is stronger, the absorption and utilization of various nutritive element by the tobacco seedlings are facilitated, the sound seedling rate is obviously improved, the spiral roots and water roots are significantly reduced, and algae in a seedling raising tank is significantly reduced.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a special fertilizer for floating seedlings of tobacco. Background technique [0002] In recent years, floating tobacco seedlings have been gradually popularized and applied in an all-round way. With professional and intensive seedling cultivation, the commercial seedling supply rate has reached more than 98%, and the seedling success rate has reached more than 90%. Although the technology of floating seedlings has gradually matured since it was popularized and popularized, the rate of strong seedlings has not been able to meet the needs of tobacco leaf production. The number of effective roots is less, and the number of invalid roots such as screw roots and the number of aquatic roots under the plate is more, so it is easy to cause the transplanting survival rate of tobacco seedlings to be low, and the seedlings are returned slowly. The important reason for the above situa...

AI Technical Summary

Problems solved by technology

Although the technology of floating seedlings has gradually matured since it was popularized and popularized, the rate of strong seedlings has not been able to meet the needs of tobacco leaf production. The number of effective roots is small, and the number of ineffective roots such as screw roots and the number of aquatic roots under the plate is large, so it is easy to cause low survival rate of tobacco seedlings transplanted, slow seedling recovery, etc.

The important reason for the above situation is that there is no special nutritional fertilizer suitable for tobacco floating seedlings at present, and the nutritional components supplied by the traditional seedling fertilizers used are mostly not comprehensive enough, and it is difficult to coordinate the supply of various nutritional components, making it difficult to make tobacco. It is also difficult to stimulate or promote the growth and development of tobacco roots; in addition, the application of traditional tobacco floating nursery fertilizers can easily lead to more green algae in the nutrient solution in the nursery ponds. These algae organisms not only consume nutrients liquid components, it is also easy to cause hypoxia in the nutrient solution, which seriously endangers the growth and development of tobacco seedlings

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