A pruning method for longan crown control and balance yield and tree vigor
A longan tree, balanced technology, applied in horticultural methods, botanical equipment and methods, horticulture, etc., can solve problems such as no longan involved, and achieve the effect of improving efficiency, controlling the size of the canopy, and improving efficiency
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Embodiment 1
[0055] It was carried out in the Shixia longan orchard of Wuchuan Forest Farm, with an area of 30 mu. From 2010 to 2012, the balanced pruning of Shixia longan tree crown was carried out while thinning flowers or fruits for three consecutive years.
[0056] In 2010, in the middle and late March, when the flower spikes were finalized and before they bloomed, the crown balance pruning was carried out. The branches without flowers are retracted, and the retracted length is 0.8-1.2m. The thickness of retracted branches is controlled below 3cm in diameter ( figure 1 The flowering period retraction position in the middle), the number of retracted branches is controlled at 30-45%, and the pruning effect diagram is shown in figure 1 . After pruning, new shoots ( figure 2 ), keep 2-3 shoots on each big branch ( image 3 ). The remaining fruiting branches are subjected to conventional fruit thinning treatment. In the first ten days of July, after the fruit of the longan tree is ...
Embodiment 2
[0064] On May 9, 2012, a balanced pruning experiment was carried out at the Institute of Fruit Trees of the Guangdong Academy of Agricultural Sciences in Shixia longan. Six Shixia plants with similar crown size and moderate fruit bearing capacity were selected and divided into three treatments. Each treatment group included 2 trees. Group 1: Balanced pruning (May 9th), the young fruit stage (fruit thinning stage) retracts about 30%-50%, the diameter of the branches for retraction pruning is less than 3cm, and the total length of retraction pruning is 0.8-1.0m ;Slightly retract the remaining branches after picking the fruit, control the diameter of the pruned branches to be below 1.5cm, and the length of the retracted pruning is 0.3-0.8m; Treatment group 2: No retraction during the flowering and fruiting period, pruning according to conventional management methods after fruit picking (Refer to Li Jianguang: 200 Questions on Longan High-benefit Cultivation Techniques, Second Edit...
Embodiment 3
[0072] From March to April 2014, balanced pruning experiments were carried out in Guangzhou, Zhongshan, Enping, and Raoping experimental bases, and large branches were retracted during the flowering period to achieve the purpose of flower thinning at the same time. Mainly for branches in the middle and upper part of the canopy with a diameter of less than 3cm, the length of retraction pruning is 0.8-1.2m, and the amount of retraction pruning is controlled at 30%-40%. Mainly for large plants in large orchards, select 10 trees for each orchard, 5 large branch thinning flowers according to the balanced pruning method of the present invention, and 5 traditional flower thinning, record the time used for each flower thinning, and measure the crown size before and after pruning , when the fruit was picked, the plant yield was counted, and the results are shown in Table 4.
[0073] Table 4 Comparison of balanced pruning and traditional flower thinning effect
[0074]
[0075] It c...
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