September is the key period for the coloring of late-maturing apples. During this period, whether the apple is bathed with sufficient light and whether it can be fully colored will not only affect the appearance of Apple, but also directly affect the market sales of Apple and the income of farmers. Then, if at this critical time there is a continuous autumn rain or a long-term lack of light, how can farmers remediate? In this regard, An Guiyang, a researcher at the College of Horticulture, Northwest Agriculture and Forestry University, has provided a number of feasible plans for apple growers. Remedy.

Thinning

An Guiyang said that a reasonable pruning of fruit trees can greatly improve the light conditions of fruit trees to meet the needs of fruit coloring in the later period. These include the timely removal of germinating shoots on the back of each main branch, sprouting branches in the internal ridges, cuts, slashes, and dense branches sprouting on both sides of each main branch, and the back of the fruit trees. The upper branches and outer branches of the canopy and the dense branches of the oppressive shoots are lightly cut in the young and thin sections, inhibiting the growth of autumn shoots, increasing the storage nutrients of the trees, and promoting the coloring of apples.

Laying reflective film

After the apple is painted, a reflective film is laid under the canopy. The bagging tree should be removed after the bag is removed in mid-to late September to increase the absorption of reflected light by the tree. This method is very effective in increasing the coloring of the inner and lower canopies of the crown. . However, it should be noted that before the film is laid, the land must be leveled, the ground must be cleaned, the low branches cut off, and the ground up should be raised to prevent light and sunburn. In addition, the membrane surface must be kept clean to maintain its strong reflective ability. An Guiyang said that the current utilization rate of this method in the main apple producing areas in the country is 30% or 40 percent.

Fertilize timely

After harvesting medium ripe apples, the best application of basal fertilizer before the late ripening apples is done. Base fertilizer is mainly organic fertilizer, plus appropriate amount of inorganic fertilizer. Practice has proved that Apple's later application of potassium fertilizer and calcium, boron, copper, magnesium, iron, strontium, barium, molybdenum and other trace elements on the fruit coloring effect is excellent.

An Guiyang said that in addition, spraying 0.2%-0.5% potassium sulfate or 0.2%-0.4% potassium dihydrogen phosphate aqueous solution during the apple coloring period can promote nutrient transport and transformation, thereby enhancing apple coloring.

Oxygen Generator

ETR PSA Oxygen Generator

With PSA principles, ETR medical PSA oxygen generator can produce 93%±3% purity oxygen gas directly from compressed air. Compared with traditional Bulk liquid oxygen and cylinders oxygen, ETR on-site PSA oxygen generator can reduce cost down to 50 percentages. They can produce oxygen by your will, overcoming the limits of distance, location and transportation.

Compressed air is purified through the air dryer and filters to a certain level for main generator to work with. Air buffer is incorporated for smooth supply of compressed air thus to reduce fluctuation of compressed air source. The generator produces oxygen with PSA (pressure swing adsorption) technology, which is a time proven oxygen generation method. Oxygen of desired purity at 93%±3% is delivered to oxygen buffer tank for smooth supply of product gas. Oxygen in buffer tank is maintained at 4bar pressure.

Oxygen Generator,Psa Oxygen Generator,Medical Oxygen Generator,Hospital Oxygen Generator

Hunan Eter Medical Co., Ltd. , https://www.eter-tech.com