 Posted: Thu 23:13, 31 Mar 2011 Post subject: Retraction of the crown of the shoot growth of gua |
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| Retraction of the crown of the shoot growth of guava
The average degree of branch m thick - Note : Different letters indicate significant difference . As can be seen from this experiment , retracting Pruning dwarf guava have some effect, but after six months of growth , tree height, smaller differences , such as the retraction of May 15 for 2 when the tree height is 0 .8 M, tree height for 3 1.8m, the difference between the height of 1m, to Dec. 25 , after 6 months of growth , both height reached more than 2m , a difference of only 20cm. This reflects the growth of a large quantity of guava variety characteristics , such characteristics make it suitable for variety of retracting handle by retracting lower height , making the growing season flower thinning , fruit thinning , bagging , spraying a series of Management measures can be more easily and efficiently , as high-quality , high yield and to create conditions . Growth of different varieties of guava different, the pruning should be based on the characteristics of different species to carry out , such as less production of guava in Thailand , you should not use heavy retraction . Retraction trim adds guava branch , and with a high degree of retraction reduce the total number of the more hair sticks . 4 retraction handle increase in the number of long shoots , including retraction and 1.3m height 0.8n treatment significantly increased the number of long sticks , and a high degree of retraction of the treatment effect for the 0.4,1.8 n Less . 0.4,0.8 and retraction height of 1.3m deal with the average length of shoots were significantly increased , but the retraction height of 0.4m thick branches handling small shoots . Therefore, the retraction guava height should be 0.8 ~ 1.3m one is appropriate, too easy to shoot from the students , the number increased, but relatively thin branches , the small number of long branches ; too high is not conducive to promoting the growth of And Rejuvenation . Guava fruit as early as a result more and more branches , nutrient consumption, easily lead to premature weak tree vigor . Therefore, adult guava tree on a high degree of retraction appropriate pruning branches in favor shorter axis , so keep sticks close to the root system, reduce nutrient transport distance , is conducive to increasing the number of long shoot . Promote high quality pearl guava yield . Retraction pruning should also pay attention to strengthening fertilizer and water management ,tory burch, growth-promoting robust shoot and update the crown . |
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