Seven key points of vine's technical management in March
Further cleaning up the litter in the field in autumn and winter, it is necessary to carry out a clearing work in the orchard. The litter and the weeds in the field will be cleaned and removed from the garden.
Spraying the Amino Acid urea solution once to spray the whole body of the amino acid urea solution on the tree stem is beneficial to the differentiation of the grape flower buds and alleviate the drying and freezing damage of the spring branches.
Timely ploughing should be unearthed for the winter vines buried in the soil. It may cause the branches to be drained too early, and it may cause the germination to be frozen after being germinated. Avoid unearthing in cool weather or windy weather. Generally, it is more suitable to unearth when the apricot flower is opened. Don't rush to tie the branches after unearthing, and tie the branches for 3~5 days.
The medicinal clearing garden spring clearing garden can be carried out 1 or 2 times. The first clearing garden can be carried out in mid-March. The second clearing garden can be carried out in the grape pompon period. The first chemical concentration can be increased appropriately. The concentration of the secondary agent may be appropriately reduced; the agent may be selected from stone sulfur, flusilazole, tebuconazole, etc., and some foliar fertilizers such as amino acids and urea may be added.
Reasonable application of germinated fertilizer should avoid the single use of nitrogen fertilizer. The application of nitrogen fertilizer should be combined with compound fertilizer, organic fertilizer and medium and trace element fertilizer; especially in orchards without fertilization for the past year, it is necessary to pay attention to the balance of organic fertilizer, bacterial fertilizer and other fertilizers. Use; nitrogen fertilizer in addition to urea, can also use some calcium nitrate nitrogen fertilizer, slow release nitrogen fertilizer.
Timely spring irrigation needs to be reminded that in recent years, water pollution incidents occur frequently, and attention should be paid to the pollution situation of irrigation. If the quality of irrigation is not high, it is better not to irrigate for the time being, nor to make a big mistake due to irrigation. Covering the mulch with grape vines, it can protect the heat preservation, promote the growth and development of the grapes, reduce the occurrence of diseases, and should be actively promoted and applied.
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