The purpose of 1 tangerine pruning is to obtain a good and firm tree structure, so as to achieve the purposes of adjusting light, rationally distributing nutrients and balancing tree potential, thus ending early, improving the yield per plant, controlling the crown within a certain range, and facilitating the management work such as fruit picking, pesticide spraying and pruning. For densely planted orchards, pruning plays a more important role in controlling canopy density and is an essential technical measure.
The quality of orchard soil management directly affects the success or failure, yield and quality of orchard construction. Creating soil conditions such as water, fertilizer, gas and heat suitable for citrus growth and development is the fundamental purpose of soil management. The main measures are applying organic fertilizer, intertillage, deep ploughing, reasonable intercropping and mulching to achieve the goal.
In dry winter and dry spring, especially in summer with high temperature and continuous summer drought, make full use of all kinds of sundries and straws to fully cover the crown pedals and rows, but not within the range of/0/5-30 cm from the root neck. Pressing into the soil in autumn can achieve the purpose of drought resistance and soil improvement. After planting, under normal management, the trial flowering and fruiting began in 3 years, and entered the complete fruiting period in 5 years. However, due to the differences in management, the growth of citrus is too vigorous to bear fruit or less, so it is necessary to adopt flower-promoting techniques for this kind of trees to increase the yield as soon as possible.
Spraying 500 times 50% thiophanate-methyl wettable powder or 500 times 50% carbendazim wettable powder or 1000 times carbendazim for two or three times in April and May. It's best to spray it with Lu Heng No.6 or Nuodukejia Xifeng Spring with the ratio of/kloc-0.000.