The distribution of roots and various characteristics and composition have an important influence on the growth of crops. It is no exception for cotton. How to increase cotton productivity and establish a certain planting pattern need to consider the root distribution of cotton and its nutrient Absorption and other in-depth understanding. The understanding and mastery of the cotton root system through the root image analysis system is conducive to the further completion of the fertilizer and water transport technology, and is of great significance to the cultivation of high-yield and high-quality crops.
In the past, there have been many methods for studying root systems, but there are also certain certainty, such as root drilling. The root drilling method is a method commonly used in cotton root research. It uses human or mechanical force to drive the root drill and remove the same volume of soil-containing root column from the soil. The advantage of this method is that the sampling is rapid, suitable for large sample tests, and has little effect on other plants within the treatment. The disadvantage is that when the non-uniform distribution of the root system is studied, the error of the sampling point will bring a large error to the entire test result.
Nowadays more modern analysis techniques have been well applied. For example, the method of the root image analysis system is simple and convenient. The basic principle of the root image analysis system is to combine the scanning system with the graphic analysis software and use the image analysis software to analyze the scanned root image to calculate the root length, surface area, volume, and number of root tips.
Compared with traditional underground root observations and excavation methods, the root image analysis system is more suitable for dynamic and timely analysis. The related instruments bring more convenience to researchers and can be used directly. Observing reduces the difficulty and does not require complicated operations, but the scanning technology and related technologies of the root image analysis system cannot directly realize the analysis of the overall root system of large-scale planted cotton fields, especially for dynamic analysis. It is an important research direction in the future.
In the past, there have been many methods for studying root systems, but there are also certain certainty, such as root drilling. The root drilling method is a method commonly used in cotton root research. It uses human or mechanical force to drive the root drill and remove the same volume of soil-containing root column from the soil. The advantage of this method is that the sampling is rapid, suitable for large sample tests, and has little effect on other plants within the treatment. The disadvantage is that when the non-uniform distribution of the root system is studied, the error of the sampling point will bring a large error to the entire test result.
Nowadays more modern analysis techniques have been well applied. For example, the method of the root image analysis system is simple and convenient. The basic principle of the root image analysis system is to combine the scanning system with the graphic analysis software and use the image analysis software to analyze the scanned root image to calculate the root length, surface area, volume, and number of root tips.
Compared with traditional underground root observations and excavation methods, the root image analysis system is more suitable for dynamic and timely analysis. The related instruments bring more convenience to researchers and can be used directly. Observing reduces the difficulty and does not require complicated operations, but the scanning technology and related technologies of the root image analysis system cannot directly realize the analysis of the overall root system of large-scale planted cotton fields, especially for dynamic analysis. It is an important research direction in the future.
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