Due to its mass transfer, heat transfer and chemical reaction, ultrasonic has become a hot research topic in the world, especially the United States, Britain, France, unique role and the development and popularization of ultrasonic power equipment. Other countries have made some progress in industr
Fertilizers formed from a mixture of various fresh livestock excreta and gasket materials need to be decomposed into nutrients and humic substances that can be used in the state of crops through the action of microorganisms during the accumulation process. This kind of organic fertilizer is suitabl
With the end of the wheat harvest, most areas began to enter the summer crop planting period. Summer maize planting area accounts for a large proportion of the summer crop planting area in Shandong. In Shandong, most of the summer corn is based on live wheat after harvest. Farmers are not used to
At the moment, when wheat returns to green, according to the characteristics of wheat needed for fertilizer, scientifically and rationally applying the three fertilizers in wheat spring management can ensure the high quality and high yield of wheat without causing waste of fertilizer. For the fir