From mid-late to early March: Precipitation of water with buds, quick and effective nitrogen fertilizer application
The conditional orchards at this stage should be filled with water in a timely manner to ensure budding and orderliness. At this time, it is the period when the flower buds continue to differentiate and the shoots begin to thrive. It requires a lot of nutrients, and can use decomposed human excreta and mix 0.2% urea. This fertilizer accounted for about 15% of the whole year.
From March to mid-April: fixing tips, wiping buds, flower ear processing and pest and disease control
Trichoderma buds usually have one bud on the mother branch, leaving one bud every 15-20 centimeters, leaving 2-5 new shoots for each result and removing the rest from the base. When the buds are wiped, the apical buds or weak buds in the two buds are generally wiped off, and only one new shoot is left in one bud. Of course, in order to ensure the yield, it is also possible to grow 4-5 leaves at the shoot, depending on whether or not the first roll has flower spikes and decide to leave it, but this wastes more nutrients.
The tip of the preserved tip of the vine was left with five leaves above the flower head before flowering, and eight leaves of the tip were left without flowers. After topping, a large number of secondary shoots will be sprouted, leaving 1-2 apical shoots at the top to leave 2 leaves repeatedly, and the rest of the auxiliary shoots will be erased. At the same time, it is necessary to tie the vines according to the growth conditions.
Treatment of Flowering Spikes To ensure fruit setting rate, one-fifth of the panicle spike is usually removed manually and 0.3% boron fertilizer plus 0.5% urea solution is sprayed during the flowering period. Five days after flowering, artificial fruit thinning was performed on fruit trees with more fruits and then bagged.
Cultivated weeding and disease control Grapes begin to prevent disease when they germinate 3-5 leaves. Spray 600-800 times of new high-fat film every 7-10 days. Especially after the rain, we must strengthen spraying protection and pay attention to cultivating and weeding. This period is mainly used to control grape black spot disease, gray mold, rust and so on.
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