Application Amount of Organic Fertilizer on the Grape
In the production of grape, the nutrition source is mainly obtained from the soil, here, scientific use of fertilizer is emphasized, and organic and inorganic fertilizers are properly combined. About the application of base fertilizer period on grape, and how should control base fertilizer use quantity? Simple and scientific method of calculating organic fertilizer is as followed.
Step 1：calculate the soil
The area of an mu is 667 ㎡, the tilth depth of grape is in 20 ㎝ - 80 ㎝, according to the 20 ㎝ calculation: the soil volume of plough layor of an mu = 667 ㎡ * 0.2 m = 133.4 m³The soil capacity range is 1.00-1.6g /cm³, calculated according to 1.15g/cm ³，The weightof an mu of ploughed soil is 133.4m ³ *1.15g/cm ³ =150,000kg
Step 2: calculate organic fertilizer
The content of organic matter in organic fertilizer is calculated as 45%.The application of 50kg of organic fertilizer in an mu of soil can theoretically change soil organic matter =50kg*45%/ 150kg= 0.015%. In order to continuously improve the soil and keep the soil organic matter at a good level, we calculate with an increase of 1%, that is, a unit of soil organic matter (the average soil organic matter content is 2-3%), what is the amount of organic fertilizer applied to an mu of soil? That is（1%*150,000kg）/45%=3333kg.
This is just a reference for the theory. At the same time, the use of organic fertilizer is a continuous supplement. It is recommended to use it once a year,
In order to adapt to the continuous elongation of crop roots and the absorption of nutrients, the effectiveness fertilizer should be first applied to the middle and lower part of soil tillage,
Different organic fertilizer has its special production equipment, our new type organic fertilzer production line and BB fertilzer production line is adopted the latest and advanced the technologies, with the low cost and consumption, quick effect, easy operation and maintenance, high income.