Concentration and concentration can receive good results. If the application concentration is too high, it is not only useless, but harmful. In general, suitable spraying concentration of various fertilizers is: boric acid or borax solution 0.05%~0.25%; ammonium molybdate solution 0.02%~0.05%; zinc sulfate solution 0.05%~0.2%; copper sulfate solution 0.01%~ 0.02%; iron sulfate solution 0.2%~1%.

The period of spraying the fertilizer must be determined according to different vegetable varieties and different varieties of fertilizers, and it is generally appropriate to spray when flowering.

The amount of general fertilizer per acre of 40 to 70 kg, so that the stems and leaves of vegetables wet is appropriate.

Frequent application of leaf fertilizer is less, so it is difficult to meet the needs of the entire growth and development process at a time. Therefore, according to the length of the growing period of the vegetables, it is usually appropriate to spray 2~4 times.

Others Freeze Dried Fruit and Vegetable

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