Potassium can increase the photosynthetic intensity of peanut leaves and accelerate the operation of photosynthetic products, and can inhibit stem and leaf lengthiness; Potassium can also promote nitrogen absorption and nodules nitrogen fixation, improve drought resistance and cold resistance. The lack of potassium in peanuts can affect photosynthesis and the transport and transformation of photosynthetic products, thus directly affecting the formation of fat in peanuts. The symptoms of potassium deficiency in peanuts are the dark green leaves. The old leaves begin to appear yellow spots on the edges or tips of the leaflets. When the potassium deficiency is severe, the leaf color may even turn brown. The irregular growth of the leaves may cause curls or ripples, affecting photosynthesis. Operates with substances. Therefore, in the potassium-deficient soil, planting peanuts should pay particular attention to the application of potash fertilizer. Even in soils with high potassium content, proper application of potassium can increase the yield and quality of peanuts.
The application of potassium to peanuts should be carried out in stages, especially in sandy soil, red and yellow soils and other potassium-deficient soils, and the effect of potassium application is more significant. Plant ash, soil miscellaneous fertilizers rich in potassium, per acre generally apply about 75 kg of plant ash as base fertilizer, can also use potassium sulfate 5-7 kg, or kiln gray potassium about 30 kg. Potashes such as plant ash are easily lost and should be used in deep layers. Peanut needs a large amount of potassium at flowering stage, so the people in soils with potassium deficiency area have useful habits of planting ash in the early flowering period, generally 50-75 kilograms per mu, which has certain effect of increasing production. In order to increase the effect of potassium application, attention should be paid to the compatibility with nitrogen and phosphorus nutrition. When nitrogen and phosphorus nutrition is sufficient, potassium fertilizer at flowering stage has good results.
Calcium can promote the formation of pods, reduce empty pods and increase the number of full pods; applying calcium fertilizer lime in acidic soil can also reduce the acidity of the soil and favor nodules and nitrogen fixation. Therefore, calcium fertilizer can improve peanut yield and quality. Peanuts lack calcium, plant growth is slow, roots are thin and weak, irregular white spots appear on the edges and leaves of old leaves, petioles become weak, and new leaves are small, affecting peanut production. Lime and plaster can be used as base fertilizer and top dressing. Acidic soil generally uses about 50 kg of lime per mu. When combined with cultivated land, it is used as base fertilizer. When used as top dressing, it can be applied in the first cropping stage in combination with cultivator soil. Lime in slightly acidic soil should be applied once every 2-3 years. It cannot be applied year after year to prevent soil compaction. Gypsum is generally applied in alkaline soils. In saline-alkali soils, there is also the adjustment of pH and the reduction of the toxic effects of salt and alkali on peanut roots. In neutral and slightly acidic soils, gypsum can also be applied, usually in the range of 5 to 7.5 kg.
The Urine Reagent Strip Rapid Test is based on a double sequential enzyme reaction. One enzyme, glucose oxidase, catalyzes the formation of glucomic acid and hydrogen peroxide from the oxidation of glucose. A second enzyme, peroxidase, catalyzes the reaction of hydrogen peroxide with potassium iodide chromogen to oxidize the chromogen to colors ranging from blue-green to greenish-brown through brown and dark brown.
The test area of the Urine Reagent Strip Rapid Test is specific for glucose; no substance excreted in urine other than glucose is known to give a positive result.Approximately 100 mg/dl glucose in urine is detectable.
The Urine Reagent Strip Rapid Test is based on the protein error-of-indicator principle. At a constant pH, the development of any green color is due to the presence of protein. Colors range from yellow for a Negative reaction, to yellow-green and green to blue-green for a Positive reaction.
Ketone Test,Urine Rapid Test Strips,Animal Test Strip,Test Strips Diabetes Weight Loss
Changchun Medicon Technology Development Co., Ltd , http://www.jlmdk.com