Hydroponic method for quickly verifying fertilizer efficacy and application of hydroponic method

Abstract

The invention provides a water culture method for rapidly verifying fertilizer efficacy and application thereof, and belongs to the technical field of agriculture and biological science. The hydroponic device capable of quickly verifying the efficacy of the fertilizer is adopted and comprises a planting basket, a liquid container, a water outlet and a liquid discharge pipe. Nutrient substances are provided for growth of overground parts and underground roots of plants through matrixes and fertilizers in the planting baskets, and water molecules in the liquid container serve as signals to induce roots to grow towards water. According to the invention, fibrous root systems can be ordered, the phenomenon of packing hardly occurs, and observation and measurement of root length in a fertilizer efficacy verification test are facilitated; after fertilization, not only can the change of plants on the ground be observed, but also the change difference of underground roots can be observed, and the method has important practical significance and application value for researching the physical and chemical properties of crop seedlings under different fertilization conditions.

Description

technical field [0001] The invention relates to the technical fields of agriculture and biological sciences, in particular to a hydroponic method for quickly verifying the efficacy of fertilizers and its application. Background technique [0002] Fertilizer is the basis of agricultural production and an important agricultural production material. It provides nutrients needed for plant growth through fertilization, which has a significant impact on the quality and yield of crops. [0003] The amount of fertilizer applied is not the more the better. Due to the unstandardized and unreasonable fertilization management of the growers, the excessive application of nitrogen, phosphorus, and potassium fertilizers and indiscriminate fertilization, on the contrary, inhibit the growth of crops, resulting in a decrease in their yield and soil deterioration. , environmental pollution, serious pests and other problems. Therefore, the rapid verification of fertilizer efficacy and the opti...

AI Technical Summary

Problems solved by technology

[0004] Through the verification test of fertilizer efficacy, the efficacy and optimum application rate of fertilizer can be measured in the laboratory, but the existing soil culture and hydroponics have insurmountable defects in the efficacy verification test: 1. The roots of crops cultivated in soil Root packing will occur, and the plant roots will be entangled with other roots in the soil. On the one hand, it is impossible to directly observe and measure the root length. On the other hand, the operator needs to wash off the soil first, straighten the roots and then measure. This process is very easy. Cause root damage and root breakage, especially serious damage to lateral roots, resulting in reduced number, heavy measurement workload, high difficulty, and large errors; There is no need to pierce deeper to absorb nutrients, and the roots lack developed growth power, so that the growth-promoting effect of the roots is not obvious, which has a certain impact on the development of laboratory verification fertilizer biotests, thus causing hydroponic fertilizer efficacy verification experiments Difficult, large error; in addition, hydroponic fluid can easily lead to eutrophication of water body, easy to grow algae, thus affecting the normal growth of plants; Zheng Jiawei (2013) research showed that hydroponic failed to increase the protein content in plants, seriously affecting the production of protein. Vegetables and fruits whose content is the main nutrient, which in turn affects the quality of the product

Most studies have shown that hydroponic planting methods will significantly increase the content of nitrate in plant leaves. If it is not handled properly or accumulated for a long time, it will cause certain harm; in addition, the hydroponic method is cumbersome to operate and requires a lot of initial investment: a complete set of hydroponic equipment It often requires a lot of capital and manpower investment, which is easy to daunt

Coupled with the requirements of hydroponics on nutrient solution, light, temperature, air and other factors, for hydroponics beginners, the operation is cumbersome and difficult to succeed

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