Scientific fertilization can improve crop drought resistance

Appropriate application of farmyard manure and straw returning to farmland and organic manure can increase the content of organic matter in the soil and increase the soil fertility, thereby increasing the amount of water in the field and improving the drought resistance of the soil. Through the decomposition and synthesis of various microorganisms in the soil, organic manure can stably release a full range of nutrients that can be directly absorbed and utilized by crops. Some organic matter turns into humus in the soil and can regulate soil nutrients, and treats minerals and soils. The granules are cemented together to form a granule structure, which stabilizes the soil structure performance and increases the water storage function of the soil. In the case of severe drought, it is difficult for plants to absorb nutrients. At this time, foliar spraying can be used to supplement nutrients. For example, urea+potassium dihydrogen phosphate can be used, and its concentration should be considered according to drought conditions and crop types. If the drought lasts longer, it should be sprayed with 0.1%-0.5% potassium dihydrogen phosphate every 5-7 days. Spraying “Tianda 2116”, “Biahu” and humic acid foliar fertilizers are also very effective. This is because phosphorus can increase the degree of hydration of the cell structure and increase the content of colloidal bound water, reducing the loss of cellular water. And increase the viscosity and elasticity of the protoplasm, thereby increasing the resistance of the protoplasm to local dehydration. Phosphorus can improve and regulate plant metabolism and adapt it to various adverse environmental conditions. At low temperatures, sufficient phosphorus can increase the concentration of soluble sugars, phosphoesters, etc. in the plant and increase the cold resistance of the crop. In addition, the presence of inorganic phosphorus can increase the buffering properties of the cell fluid, so that the ph value of the cell protoplasm maintains a stable state and is conducive to the normal life activities of the cells. Potassium is sufficient to reduce the respiration, and it is beneficial to maintain the stability of the plasma membrane and the anti-oxidation ability of the plasma membrane, reduce the destruction of the cell membrane at low temperature, and thus enhance the cold resistance of plants. In general, the use of nitrogen fertilizer will increase the freezing injury, and the combined application of nitrogen, phosphorus and potassium fertilizer can further improve the cold resistance of the crop. In addition, potassium can also promote root growth, increase root-shoot ratio, and thus enhance crop water absorption.

Pulse oximetry is a noninvasive and painless test that measures your oxygen saturation level, or the oxygen levels in your blood. It can rapidly detect even small changes in how efficiently oxygen is being carried to the extremities furthest from the heart, including the legs and the arms.

The Pulse Oximeter is a small, clip-like device that attaches to a body part, like toes or an earlobe. It`s most commonly put on a finger, and it`s often used in a critical care setting like emergency rooms or hospitals. Some doctors, such as pulmonologists, may use it in office.

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