A method of spiral girdling to promote early fruiting and yield increase of late-fruiting walnuts
A technology of spiral rings and walnuts, which is applied in the field of early fruiting and increasing production of walnuts, and can solve the problems of late fruiting and low yield of soaked walnuts
Active Publication Date: 2016-05-18
云南省林业技术推广总站
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the defects of late fruiting and low yield in the current soaked walnut (J.sigillataDode)
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[0020] The inventive method is established 3 times of repetition (1 strain is a repetition), and 3 contrasts are set, contrast 1 (CK 1 ) means no pruning + fertilization. Control 2 (CK 2 ) is conventional pruning + fertilization, control 3 (CK 3 ) is downcutting + pruning + fertilization. Implementation location: Qingshui Village, Banqiao Town, Jiangyang District, Baoshan City, Yunnan Province. Implementation time: 3 years from 2010 to 2012.
[0021] (1) Spiral girdling method of the present invention+conventional pruning+fertilization
[0022] 1. Processing objects
[0023] Select 4-year-old Yangbi bubble walnut (J. sigillataDode), and the tree body is planted as grafted seedlings. The height from the base of the main trunk to the lowest branch of the ground is more than 1m, and the annual growth of new shoots is more than 50cm. The vegetative branches account for the whole More than 60% of the branches of the tree, no tree body in 4 years. One plant is one subject, re...
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The invention discloses a method for promoting a late-fruiting walnut tree to fruit earlier and increase production through spiral girdling. According to the method, a walnut tree meeting the following requirements is chosen: a J. sigillata Dode tree grows for four to twenty years, a tree body is a transplanted grafted seedling, the distance between the base of a trunk and the branching position of a branch closest to the ground is larger than 1m, annual growth of young sprouts is 50cm in length, vegetative branches account for more than 60 percent of the branches of the whole tree, and the J. sigillata Dode tree body does not fruit within four to ten years. Spiral girdling is performed from the base of the trunk from bottom to top in fifteen to twenty days before the beginning of spring, the depth of spiral girdling just reaches xylem, the width of spiral girdling is one-tenth of the diameter of the trunk, the spiral pitch ranges from 10cm to 20cm, and the height of spiral girdling ranges from 60cm to 80cm. Compared with a grafted walnut tree naturally growing for seven to eight years, by means of the method, the J. sigillata Dode tree fruits two to three years earlier, and the total fruit amount of one tree in two years increases by 2.6 times to 8 times. Compared with a grafted walnut tree cultivated conventionally, the total fruit amount of one tree in two years increases by 2.6 times to 8 times.
Description
technical field [0001] The invention relates to the technical field of tree cultivation, in particular to a method for early fruiting and increasing production of walnuts. Background technique [0002] Juglans is a world-renowned economic forest tree species. Yunnan Province is one of the origins of walnuts and the main walnut producing area in the country. Its planting area and output account for about two-thirds of the country's total. Walnut is a "leading industry" that promotes the poverty alleviation of farmers in mountainous areas and drives the overall development of the rural economy in mountainous areas. It has become a pillar industry of forestry in Yunnan Province. By the end of 2013, the walnut planting area in the province reached 39 million mu. [0003] There are more than 20 species in the genus Juglans, which are distributed in Asia, Europe, and America. There are 5 species native to my country, namely walnut (J.regiaL), bubble walnut (J.sigillataDode), waln...
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IPC IPC(8): A01G17/00A01G1/06A01G7/06
Inventor 施彬刘金凤熊新武陆斌李俊南聂艳丽苏为耿赵平董钧
Owner 云南省林业技术推广总站