1. High standard building During the construction of the garden, planting trenches with a width of 1 meter and a depth of 80 centimeters were dug forward according to the row spacing of plants. The sown soil was turned into the bottom of the trench and c
Read moreDue to the pressure of life, eating irregularities, eating regularly, and staying up late, modern people have caused more and more people to have bad stomachs. Therefore, there is a saying that “ten people have nine stomachsâ€. The time of "39" days is the coldest time of the
Read moreWhen sparsely blooming apple trees, you should first look at the varieties. Varieties with a high fruit setting rate have fewer flowers, those with a lower fruit setting rate have more flowers, large fruits have less flowers, and small fruits have more fl
Read moreWorking principle: After the wet material is added to the dryer, the material is evenly distributed and dispersed in the dryer under the flapping device, and the material is fully contacted with the cocurrent (countercurrent) hot air to accelerate the drying heat transfer. Mass transfer. In th
Read moreSand ice machine is specially made for making smoothies, cocktails, chilled cappuccino, sorbet, milkshake, yogurt, sprite strawberry ice, rich banana milkshake, coconut pineapple ice, orange honey papaya smoothie, fresh Small appliances such as smoothies provided by
Read moreApple leaflet disease is a physiological disease caused by insufficient zinc content in the tree body. Therefore, zinc supplementation is often used to prevent and control. But apple tree leaflet disease is not only caused by insufficient zinc content. Un
Read moreCleaning up the orchard. The picking of apple trees is generally completed in autumn, so we should clean up the orchard in time after the picking is completed. The bad branches or broken apples on the apple trees should be removed in time, and the weeds un
Read moreWhen cultivating pumpkins, it is necessary to choose good varieties. The selection of land should consider the convenience of pouring, irrigation and drainage, convenient transportation, rich organic matter, and the soil of the former crops that have not been planted with melon crops. The sowing
Read moreThe speed of the first and third screw pumps is linear with the flow rate of the three-screw pump. Compared with the low-speed screw pump, the high-speed screw pump can increase the flow and lift, but the power is obviously increased, and the high speed is accelerat
Read more1. The source of soil nutrients. Organic matter contains various nutrients needed for crop growth, providing nitrogen, phosphorus, potassium and various trace elements for crop growth. In addition, the carbon dioxide produced by the decomposition of soil
Read moreAccording to the process, determine the diameter of the regulating valve , the specific steps are: 1. First calculate the maximum flow rate Qmax and the minimum flow rate Qmin based on the equipment load of the production capacity. 2. The S value is selected accor
Read moreFinishing (such as cutting) of the machined surface by the relative movement of the lap and the workpiece under a certain pressure by the abrasive particles coated or pressed onto the lap. Grinding can be used to process a variety of metal and non-metallic materials
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