How should persimmon trees be managed before and after flowering?
Management of persimmon trees before and after flowering. Persimmon trees are light-loving crops, and in dense planting, attention should be paid to solving ventilation and light penetration, which is the main measure for high-yield management. Persimmon trees bear fruit from axillary buds, so thinning out vigorous growing branches and strengthening nutrient accumulation in the branches and trunk are very important. Before flowering, attention should be paid to applying amino acids to the trunk to promote flower bud differentiation and overcome alternate...
Management of persimmon trees before and after flowering. Persimmon trees are light-loving crops, and in dense planting, attention should be paid to solving ventilation and light penetration, which is the main measure for high-yield management. Persimmon trees bear fruit from axillary buds, so thinning out vigorous growing branches and strengthening nutrient accumulation in the branches and trunk are very important. Before flowering, attention should be paid to applying amino acids to the trunk to promote flower bud differentiation, overcome alternate bearing, and promote early fruiting, which is the focus of the work.
(1) In response to infectious disease spots on persimmon branches and trunks such as branch wilt, angular leaf spot, and anthracnose, it is recommended that fruit growers prevent and control them through the following measures. 1. Apply 1 jin of Meinongxin multi-element or 1 jin of silicon-calcium-magnesium-potassium fertilizer per tree to restore healthy growth. 2. When applying amino acids to the trunk, Ningnanmycin or Beibo can also be added. The method is to prepare Ningnanmycin or Beibo as a 50-fold solution and mix it with amino acids to coat the trunk.
(2) Measures for preserving flowers and fruit: 1. When one-third of the flowers have opened, spray "Yunda Whole Tree Fruit" at 600 times + Fulu Boron at 1000 times, and spray again after an interval of 3-5 days. 2. When one-third of the flowers have opened, begin spraying "Baofengling" at 600 times + Fulu Boron at 1000 times, and spray again after an interval of 3-5 days.
(3) Plan for preventing angular leaf spot, anthracnose, and round spot disease after flowering. 1. Kejunqing at 2000 times + Fuwangjia at 800 times + Jinke at 1500 times; 2. Iprodione urea at 6000 times + Haierfeng at 800 times + Zhengshuai at 1500 times; 3. Beibo (or Ningnanmycin) at 800 times + Fuwangjia at 800 times + Jinsheng at 1500 times; 4. 70% Haili-produced thiophanate-methyl at 1000 times + Yunda 120 (1500 times) + Kajie at 800 times; 5. Cuibei at 7500 times + Fuwangjia at 800 times + Yunda Anzhi at 1500 times. Spraying Cuibei once can effectively control the occurrence of pathogen infection for 60 days, and spraying it on the branches and trunk can effectively prevent the occurrence of trunk rot, anthracnose, and angular leaf spot.