In order to ensure the normal use of the diesel engine and extend the lifespan of its use as much as possible, the most important point must be to do a modest job, “combining work and rest”, if the long-term overload operation will cause a variety of

It is more economical and effective to fertilize greenhouse vegetables by diluting the micro-fertilizer and spraying the vegetable leaves. But during the spraying process, you should pay attention to the following skills:

Concentration: Appropriate concentration can receive good fertilization effect. If the application concentration is too high, it is not only useless but harmful. Appropriate spraying concentration of various fertilizers is: boric acid or borax solution 0.05% to 0.25%; ammonium molybdate solution 0.02% to 0.05%; zinc sulfate solution 0.05% to 0.2%; copper sulfate solution 0.01% to 0.02%; Iron solution 0.2% to 1%.

Period: The period of spraying fertilizer must be determined according to different vegetable varieties and different types of micro-fertilizers, and it is generally appropriate to spray when it is in flowering.

Dosage: Generally 40 ~ 70 kg of mu fertilizer solution, so that the stems and leaves of vegetables wet is appropriate.

Times: The amount of fertilizer used for leaf spraying is generally less, so it is difficult to meet the needs of all growth and development processes at one time. Therefore, it should generally be based on the length of the vegetable growth period, spraying 2 to 4 times is appropriate.

Time: In order to reduce the loss of trace fertilizer in the spraying process, which is beneficial to the absorption of the leaves, it should be sprayed in cloudy or sunny afternoons and afternoons. This can prolong the residence time of the fertilizer solution on the leaves of the vegetables and help to increase the spray time. Effect.

In addition, in the mixed spraying with pesticides, consider the dual effects of fertilizer efficiency and efficacy.

In general, all kinds of micro fertilizers should not be mixed with alkaline pesticides. When preparing a mixed spraying solution, a kind of micro-fertilizer is first formulated into an aqueous solution, and then other drugs and fertilizers are directly added to the prepared micro-manure solution according to the amount to be dissolved.

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