1 Garden selection
Jackfruit likes warm and humid tropical climate. Not cold-tolerant, it is required that the annual average temperature in the planting area is ≧2 1℃, the highest average temperature in Leng Yue is ≧ 13℃, and the absolute minimum temperature is ≧0℃. The requirements for soil are not strict, and it can grow normally in acidic soil with deep, fertile and loose soil layer and good drainage, or in slightly alkaline clay or sandy loam. It is best to plant in low hills or flat land below 600 meters above sea level.
2 Jianyuan
The row spacing of jackfruit plants is 5~6 m× 6 ~ 7 m, the pit is dug for planting, the weeds are placed at the bottom of the pit, the branches and leaves are mixed with lime 0.5 kg, the topsoil is returned to the field 1 layer, the pond mud, livestock manure 30 kg and phosphorus fertilizer 0.5 kg are put in.
Jackfruit can be planted all year round, but spring planting (March-April) and autumn planting (9-165438+1October) are the best. When planting, the soil in the planting hole should be refined to straighten out the root system of the seedlings, and then the fine soil should be leveled by layers, and it is advisable to level the ground with the root neck. Immediately after planting, water the roots and cover the tree tray with plastic film.
3 Rational fertilization
Fertilization of young trees: The distribution of young tree roots is shallow and narrow, so it is advisable to apply thin fertilizer frequently, and it is better to spray water and fertilizer. Generally, it is more reasonable to use two fertilizers for one branch, namely, shoot-promoting fertilizer and strong shoot fertilizer. Before a few buds germinate, 20 grams of urea is applied to plants at 1 year to promote buds. When most of the shoots grow to 6 cm and reach the new leaves at the base of the branches, compound fertilizer and potassium fertilizer are applied to make the shoots change from light green to dark green. Apply it to the plant at 1 year (20g compound fertilizer+15g potassium sulfate)/time, and then increase it year by year.
Fertilization of fruit trees: Generally, fruit trees are fertilized three times a year. Flower-promoting fertilizer: apply flower-promoting fertilizer before heading, mainly compound fertilizer. Compound fertilizer 1 kg, potassium sulfate 0.5 kg and manure water 5 kg were applied to each plant. Strong fruit fertilizer: applied in young fruit stage, mainly nitrogen and potassium, aiming at promoting rapid fruit expansion. Each plant is applied with 5 kg of pig manure water, 0.5 kg of urea, 0.5 kg of compound fertilizer and 0.5 kg of potassium sulfate. Fertilization after harvest: June 5438+10, with updating and pruning. Organic fertilizer should be applied again to promote adventitious bud germination and store nutrients for crown regeneration. Chicken manure 15 kg, urea 0.5 kg, compound fertilizer 1 kg and calcium superphosphate 0.5 kg can be applied to each plant.
4 plastic decoration
Jackfruit bears fruit on the trunk, main branches and branchlets. It is necessary to control the crown height and cultivate a good round crown in production. Young trees should give priority to cultivating crown and cooperate with shaping. When the height of the trunk reaches 1 m, the trunk should be cut short to promote branching, and if necessary, cross branches, dense branches and overlapping branches should be cut off. Generally, it is necessary to cultivate 3-4 first-class branches with a crown height of 3.5 meters. How to prevent rotten grapes from forming a reasonable tree structure? Results Trees were pruned mainly in winter, mainly by pruning dead branches, weak branches, over-dense branches, residual fruiting branches and male flower branches. In order to control the crown of the tree, some large branches and long branches should be properly cut short to keep the branches evenly distributed and protect the inner room from sun exposure.