Key points of corn science fertilization
For most crops, scientific and rational fertilization can make its output higher. If there is no reasonable fertilization, not only can it not increase, it may also cause certain losses. Today we mainly come to learn about the scientific and rational fertilization points of corn.
First, increase the application of organic fertilizer
The level of corn yield is not related to the level of soil fertility. Therefore, when fertilizing, organic fertilization should be added to increase the soil fertility. For example, the organic fertilizer per mu should not be less than 4,000 kg.
Second, the nitrogen fertilizer is stable
Spring corn should be applied to the bottom fertilizer, regulate the amount of topdressing, and summer corn should be applied to topdressing. In high-yield fields with a yield of more than 500 kg, the nitrogen application per mu should be stable at 9 to 12 kg; the middle-production field with a yield of 300-500 kg should be stabilized at 7 to 10 kg per mu, and the low-yield field with a yield of less than 300 kg. The nitrogen application per mu should be stable at 6-8 kg. At the same time, rationally adjust the application period and method to improve the nitrogen fertilizer utilization effect.
Third, phosphorus fertilizer control
Phosphate fertilizer should be reasonably determined and controlled according to the available phosphorus content of the soil. In the high, medium and low yield fields, the appropriate phosphorus application rate per mu should be controlled within the range of 7 kg, 6 kg and 5 kg, respectively. Spring corn phosphate fertilizer is generally applied as base fertilizer, and summer corn can be applied with nitrogen fertilizer. The application of phosphate fertilizer should emphasize deep application and early application.
Fourth, potassium fertilizer application
As the soil available potassium decreases year by year, the area of ​​potassium deficiency continues to expand. In order to meet the demand for potassium in corn growth, it is necessary to increase the total application of potassium fertilizer. The suitable potassium fertilizer application rate in high-yield fields is about 8 kg per mu, the middle-yield field is about 7 kg, the low-yield field is about 6 kg, and the nitrogen, phosphorus and potassium application ratio should be 1:0.5:0.6.
Fifth, timely application of micro-fertilizer
At present, the phenomenon of trace elements in soil is becoming more and more serious. For corn, zinc deficiency in large areas appears. Supplementing corn and zinc fertilizer can be applied in corn soaking and coating, or in corn sowing or seedlings. During the period of topdressing, 1~2 kg of zinc sulphate is commonly applied, and it can also be sprayed in corn special fertilizer or corn seedling foliar, and zinc fertilizer is added in spray fertilizer.
In general, mastering the fertilization method of corn will have a great effect on the increase of corn yield.
For the wonderful pictures and popular comments on corn fertilization methods, you may be interested in the following recommended contents of Hui Nong. Welcome to read.
Geogrid
The Geogrid including Polyester Geogrid, Fiberglass Geogrid, Steel Plastic Composite Geogrid and Plastic Geogrid.
The geogrid is a major geosynthetic material. Compared to other geosynthetic materials, it has unique performance and efficacy. Commonly used for reinforcement of soil structure or reinforcement of composite materials.
The uses of geogrid: It is suitable for embankment and embankment reinforcement slope protection tunnel wall reinforcement large airport parking lot wharf cargo yard and other permanent bearing foundation reinforcement.
The feature of geogrid:
The high strength creep can adapt to all kinds of environment soil, and can satisfy the use of high grade highway retaining wall.
It can effectively improve the locking and occlusion of the reinforced bearing surface, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil, and enhance the stability of the foundation.
More suitable for deep-sea operations, embankment reinforcement, fundamentally solve the other materials do stone cage due to long-term erosion by the sea caused by low strength, poor corrosion resistance, short service life and other technical problems.
It can effectively avoid the construction damage caused by the crushing and destruction of machinery and tools in the construction process.
Steel Plastic Geogrid,Polypropylene Geogrid,Stretch Plastic Geogrid,Biaxial Plastic Geogrid
ANPING COUNTY SHANGCHEN WIREMESH PRODUCTS CO.,LTD , https://www.scwpwiremesh.com