2, formula fertilization. The application of nitrogen, phosphorus, potassium and trace elements is called formula fertilization. According to the test, the nitrogen utilization rate of single application of urea is 30% -38%, while the formula application, the utilization rate of nitrogen is increased by 58%-60%, and the utilization rate of single application of phosphorus fertilizer and phosphorus pentoxide is 12%-14%. For formula application, the utilization rate is increased by 35%-38%; the utilization rate of potassium chloride alone is only 31%-35%, and the application rate is increased by 57%-61%.
3. Deep application of nitrogen fertilizer. The deep application of nitrogen fertilizer can effectively prevent nutrient loss and increase nitrogen utilization rate. According to the test: the ammonium bicarbonate is applied, the nitrogen utilization rate is 28.6%, and the deep application, the nitrogen utilization rate is increased to 58.6%; the urea application, the nitrogen utilization rate is 42%, the deep application, the nitrogen utilization rate Increase to more than 80%, especially the application of ammonium bicarbonate, it is easy to cause crop burning and poisoning.
4. Centralized application. Give limited fertilizer priority to low- and medium-yield fields. According to the test: the same amount of 5 kg of urea and potassium chloride are applied to the fields of high-yield, middle-yield and low-yield fields at the same time. The effect of increasing yield is very different. On average, 1 kg of urea is applied, and high-yield fields increase rice yield 3.5. In kilograms, the middle-income field increased the yield of rice by 5.8 kg, and the low-yield field increased the yield of rice by 8.8 kg.
Cell Culture plates provide the right environmental surface to cultivate microorganisms. Choose from a variety of treated and untreated plates and dishes in multiwells or uniform flat bases. Some of the features include optically-clear for easily viewing cells, stacking beads for easier handling, and gamma sterilized and certified nonpyrogenic.
Product material: made of polystyrene
Product features: Each hole is marked with numbers and letters, which is easy to locate. One section of the plate cover has two bevel guides to prevent cross-contamination.
Features:
Easy to locate: alphanumeric labeling
Increased hole edges: reduces the risk of cross-contamination
Independent packaging: each culture plate is individually packaged
The tightly integrated hole cover can effectively prevent the contamination and evaporation loss of the medium during the cell culture process
Good stability: Innovative cover edge diversion design, which greatly improves the circulation and exchange of air in the plate
24 Well Plate,Cell Culture Plate,6 Well Plate,12 Well Plate,96 Well Plate Cell Culture
Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yonyuemedical.com