What is the effect of corn compound fertilizer for flue-cured tobacco?

Corn compound fertilizer can also be used for flue-cured tobacco, but the effect will be different from that of special compound fertilizer. The difference lies in the output and quality, usually the output affects about 30%, and the quality depends on the results of the samples used.

Matters needing attention in the use of flue-cured tobacco compound fertilizer:

1, compound fertilizer and potassium sulfate should be determined according to the groundwater level and fertility, and it is recommended to apply less or no pond fertilizer (if the soil fertility is low, it should be applied less, and if the soil fertility is high, it should be applied again or topdressing (if the groundwater level is low, it should be applied again, such as ground tobacco and mountain tobacco; If the groundwater level is high, topdressing is required. Yan Di can apply 13 compound fertilizer and potassium sulfate as strip fertilizer, 13 pool fertilizer and 13 topdressing after transplanting. Tobacco in field was applied with13 compound fertilizer and potassium sulfate as pool fertilizer, and 2/3 topdressing. ?

2. Calcium superphosphate or calcium magnesium phosphate fertilizer is suitable for strip application, that is, it can be spread evenly at the bottom of tobacco moisture before soil moisture management, which can improve fertilizer efficiency. In addition, calcium magnesium phosphate fertilizer is an alkaline fertilizer, so it is not suitable to be mixed with acid fertilizers such as compound fertilizer or potassium sulfate, so as to avoid chemical reaction and reduce fertilizer efficiency, and the application effect in acid soil is better. ?

3. In order to prevent direct contact between fertilizer and tobacco plants, annular fertilization can be used to keep the distance between fertilizer and tobacco plants at 10 ~ 15㎝ to avoid burning seedlings. In particular, plastic film tobacco with one-time fertilization should pay more attention to this problem.

4. The application of micronutrients. The application amount of trace elements in flue-cured tobacco is generally low, but it plays a physiological role in the growth and quality formation of flue-cured tobacco. The application of micronutrients should be based on the principle of "supplementing what is lacking". Magnesium, boron, molybdenum and zinc are generally lacking in tobacco-growing soil and tobacco leaves.

Illustration of fertilization for flue-cured tobacco seedlings: