Selecting good varieties with strong cold resistance and strong disease resistance, and dipping the roots with a new high-fat membrane solution prior to cutting and planting, so as to isolate the infection of pathogens and increase the survival rate of the plants. After the cutting is completed, the mulch film and water can be replenished in time to moisturize and warm the roots of the cuttings.
Timely tillage and weed control keep the soil loose and air permeability is good, and the root minister is strong. In the months from June to July, once every 20 days or so, the water should be controlled in accordance with the growth of the plants and soil moisture in late August in order to promote the ripening of aging shoots and prevent winter freezing damage. During the period of vigorous growth from July to September, nitrogen, phosphorus, and potassium fertilizers should be applied in an appropriate amount to ensure that the nutrients needed for plant growth are adequate and robust.
The pomegranate tree is pruned and trimmed, and the trunk height is suitable to be maintained at about 30-40cm, which is conducive to buried in winter and promotes safe wintering of fruit trees. Pruning mainly removes branches and branches of pests, weak branches, over dense branches, overlapping branches, and drooping branches, so as to improve the ventilation and light transmittance of the fruit trees. For fruit trees that grow too prosperous, it is advisable to apply Huanhua No.2 around the flower buds during the flower bud differentiation to force the top of the fruit trees to flow back towards the flowering gene and the flower ovary to provide fruit development and control the draw.
Rhodium powder Rh≥99.95% Properties: silver-white metal, extremely hard, wear-resistant, also has considerable ductility Application: It can be used as raw material for electrical instrumentation, chemical industry and manufacture of precision alloys. Rhodium powder is based on the widespread use of ruthenium in the industrial industry. Since rhodium is a rare metal required by the industry, the industry price is slightly higher than that of general non-ferrous metals. Rhodium, one of the rare elements, has various uses. Rhodium can be used to make hydrogenation catalysts, thermocouples, platinum-rhodium alloys, etc. It is also often plated on searchlights and reflectors, and is also used as a polishing agent for gemstones. and electrical contact parts.
precious metal
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