Special slow-release long-acting compound fertilizer for carrot and application method for same

Abstract

The invention relates to a special slow-release long-acting compound fertilizer for carrot and an application method for the special slow-release long-acting compound fertilizer. The fertilizer is composed of active ingredients and auxiliary materials, wherein the active ingredients comprise, in parts by weight, 20-25 parts of nitrogen, 8-12 parts of phosphorus (P2O5), 14-18 parts of potassium (K2O), and an inhibitor with an addition amount which is 2-4% of the dosage of nitrogen in the compound fertilizer, wherein the inhibitor is a composite inhibitor composed of a urease inhibitor and a nitrification inhibitor at a weight ratio of 1: (2-5); the urease inhibitor is hydroquinone or N-butyl thiophosphoramide; and the nitrification inhibitor is dicyandiamide, 2-chloro-6-(trichloromethyl) pyridine, 2-amino-4-chloro-6-methyl pyridine, 3,4-dimethylpyrazole phosphate, 3,5-dimethylpyrazole or 3,5-dimethylpyrazole phosphate. The fertilizer is capable of meeting the needs of a whole growth period on nutrients by being applied once before carrot planting, high in yield, and excellent in quality.

Description

technical field [0001] The invention relates to a special fertilizer for carrots and an application method thereof, in particular to a special slow-release long-acting compound fertilizer and an application method thereof developed according to the nutrient requirement characteristics of carrots and the transformation characteristics of main mineral nutrients in soil. Background technique [0002] Carrot (Daucus carota) is a biennial plant of the genus Carrot in the Umbelliferae family. It is a semi-cold-resistant vegetable with rich nutrition and is known as "little ginseng". According to statistics, my country's carrot planting area is close to 40% of the world's total carrot planting area, and its total output accounts for 1 / 3 of the world's total output. It is well-deserved that it is the world's largest carrot producer. In recent years, the planting area and total output of carrots have continued to grow rapidly. However, since 1996, the yield per unit area of ​​carrot...

AI Technical Summary

Problems solved by technology

[0003] For a long time, due to the lack of special fertilizers suitable for carrot nutrient requirements in the market, and the general lack of scientific cultivation and management knowledge of vegetable farmers, blind fertilization and excessive fertilization are very common in production, resulting in unbalanced soil nutrients after several years of planting. Problems, physiological diseases and pathological diseases of carrots are becoming more and more serious, making it necessary to use a large amount of pesticides to control and alleviate them in production, which seriously restricts the sustainable and healthy development of the carrot industry

Moreover, the waste of nutrient resources and energy due to the unbalanced application of fertilizers, and even the problem of environmental pollution have become an important aspect that cannot be ignored at present.

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