Crop nutritional deficiency experimental system

Abstract

The invention discloses a crop nutritional deficiency experimental system comprising a water planting barrel, an oxygen-increasing device, a water-supplying device, a nutrient solution-supplying device and a draining device. Crops are water planted in the water planting barrel, ultrapure water is transmitted to the water planting barrel through the water-supplying device, nutrient solution in high concentration is transmitted to the water planting barrel through the nutrient supplying device, the oxygen-increasing device is used for adding oxygen to the nutrient solution in the water planting barrel, the draining device is used for draining waste nutrient solution in the water planting barrel clearly. By the application of the crop nutritional deficiency experimental system, water supplying, nutrient solution supplying, oxygen adding, waste nutrient solution draining are reasonable designed, the efficiency of nutritional deficiency experiment with the water planting device is highly improved, and basic conditions for executing large-scale correlation research are provided. In the process of experiments, parallel experiments are mutually independent and non-interfered, thereby management of experiment is facilitated and the accuracy of experimental data is improved conveniently.

Description

technical field [0001] The invention belongs to the field of crop hydroponic experiments, and relates to an experimental system, which is specially used for crop nutrient deficiency experiments. Background technique [0002] At present, more than 70 kinds of elements have been found in various plants. Among them, it is known that during the normal growth and development of plants, the essential nutrient elements, except mineral elements carbon, hydrogen, and oxygen, are taken from the atmosphere and water, and mineral elements (including Nitrogen) 13 kinds of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, zinc, copper, molybdenum, chlorine, etc. It needs to be ingested from the soil or other ways. If one of these elements is deficient, the crops will not grow normally, and there will be obvious growth abnormalities in appearance. Such as short plant, stagnant growth, few branches or tillers, chlorosis, redness or purple, old leaf color...

AI Technical Summary

Problems solved by technology

For example, there are 13 essential nutritional elements in tobacco. If one experimental group is set for each element, multiple parallel experiments are set for each experimental group, and multiple repetitions are set for each parallel experiment. In order to ensure the accuracy of the experiment, water supply needs to be strictly managed , Supplying nutrient solution, supplying oxygen and discharging waste nutrient solution, the experimental workload is very huge, it is not easy to manage, and it is easy to make mistakes

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