Timely top dressing On the basis of fertilization in autumn and winter, apply a flat nitrogen, low-phosphorus, high-potassium fruit tree compound fertilizer before flower bud differentiation from late May to mid-June, and timely water after fertilization. The amount of fertilization should be determined according to the age of the tree, the strength of the tree, and the result. In the summer, when the rainy season begins, the amount of rainwater increases. It is necessary to properly apply water according to soil moisture. Watering should be performed with small water and prevent flooding. After the heavy rain, we must promptly rule out the accumulation of water in the garden and prevent the roots from decaying due to rain soaking. 6-8 months is the rapid expansion of pear fruit, this period should be dominated by potash fertilizer, coupled with phosphorus, nitrogen fertilizer, can increase fruit yield and quality, and can promote flower bud differentiation, generally acres of topdressing potassium sulfate fertilizer 12 to 20 kg, Phosphorus 6-8 kg, nitrogen 5 to 10 kg. Foliar fertilization of boron, zinc, iron and other lack of orchards, available 0.2% borax solution, 0.2% zinc sulfate +0.3% urea mixed solution before spraying to flowering multiple spray, every other week. The absence of boron, zinc, iron orchard foliar spray fertilizer 0.2% urea solution, can be sprayed from spring to autumn, can also be combined with spraying. Physiological fruit drop to the harvest period spray 2 ~ 3 times 0.3% ~ 0.5% potassium dihydrogen phosphate solution. In order to improve the effect, it is best to spray fertilizer on sunny mornings and evenings in the absence of wind, avoid spraying fertilizer at noon to prevent heat damage.
In this category, you will find wide assortments of Glass ware used in Lab. Beaker, measuring cylinder, flask, test tube, petri dish, centrifuge tube, evaporating dish, dryer, reagent bottle and ect., you will have a good choice with various size.
Combined with glass ware, you also can find related electric devices like Distilling Apparatus, Water Bath, Digital Oil Bath in the category of Lab Eletronic machines.
Lab Glassware,Laboratory Glassware,Chemistry Glassware,Scientific Glassware NINGBO YINGMED MEDICAL INSTRUMENTS CO.,LTD , https://www.chinayingmed.com