One of the important factors for the sustainable development of agriculture in China is the lodging of crops. There are three factors that affect the lodging of crops. One is the variety of rice itself, its own resistance to lodging, and the second is cultivation measures, such as the amount and type of fertilization and planting. Density, etc.; Third, weather conditions, especially typhoons or storms. In recent years, a great deal of research has been done at home and abroad on the effects of fertilizer types (organic and inorganic fertilizers) on soil nutrients and crop growth. Emphasis is placed on the effects of different fertilization methods on soil physicochemical properties, soil fertility, soil nutrient balance, and crop yield. However, little is known about the effect of different nutrient input models on crop lodging resistance. The portable crop resistance tester can effectively detect the lodging resistance of field crops.
The portable crop resistance tester found that silicon and potassium can promote lignification and silicification of thick-walled cells in plants, thickening of thick-angle tissue cells, development of keratinocytes, and increased fiber content.1 Therefore, adequate silicon and potassium nutrition, It will make the plant stem stout, increase the strength, improve the mechanical properties, and improve the lodging resistance. This study shows that the stem wall thickness, stem weight and breaking force of rice have significant or extremely significant positive correlation with the K2O and SiO2 content of the stem. The combination of organic and inorganic fertilizers, especially the nutrient modes of CS and CS, is more conducive to increasing the silicon and potassium content of rice stalks in the AWD and DRA modes. The morphological and physical properties of the basal culms reduced the lodging index of rice stems, thereby greatly increasing the lodging resistance of the plants.
The application of the portable crop resistance tester can be concluded that soil silicon supply capacity is mainly affected by soil texture, pH, Eh, organic matter, etc. Paddy soil is an artificial aquifer, except for natural factors, irrigation, tillage and fertilization. Other agricultural measures will bring about a series of changes in the physical and chemical properties of the soil, affecting the availability and content of potassium and silicon in the soil, and the absorption of crops, thereby further affecting the lodging resistance of rice plants. At the same time, reasonable irrigation and fertilization can also improve The quality of roots improves the absorption of plant nutrients and improves their resistance to lodging. The pedological and physiological mechanisms of crop lodging have yet to be further studied.
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