When planting, the roots of seedlings should be trimmed appropriately, placed in the center of the planting hole, stretched and righted, and the seedlings should be gently lifted upward while filling the soil, so that the roots are closely connected with the soil. Water the roots, make a 1m tree tray around the seedlings, and cover it with chaff.
Extended data
There are 12 mineral nutrients necessary for Shatangju: nitrogen, phosphorus, potassium, (macroelements), calcium, magnesium, sulfur (macroelements), zinc, manganese, iron, copper, boron, molybdenum and (trace elements). Every nutrition has a certain function, and the lack of any nutrition will affect the growth of citrus;
On the contrary, if some nutrients are too much, they will also have toxic effects. On the other hand, various nutrients have their inherent proportions and interactions. If the proportion is unbalanced (especially trace elements), there will be bad symptoms, which will affect the yield or quality. These nutrients can be supplemented by applying various fertilizers (organic fertilizer and inorganic fertilizer).
In addition, Yunan County is one of the three base counties for planting Shatangju in Guangdong Province. "Yujiang brand" Yunan Shatangju is a famous fruit in our county and the first brand of characteristic agricultural economy in our county. The production area of Shatangju in the county is 200,000 mu, and the estimated output is 350,000 tons.
June 2003: 5438+065438+ 10 "Yujiang" Shatangju was awarded the title of Grade A green food by China Green Food Development Center. In April 2004, Yunan County was approved by the Guangdong Provincial Department of Agriculture to create a "green food demonstration county", and in June 2005, Yunan County was rated as 5438+065438+ 10.
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