Annual fertilization and planting management sharing of Plum seedlings

2022-06-05 0 By

Three good nursery stock base and everyone to share the annual fertilization time of plum seedlings a week before the germination of plants, topdressing is mainly given priority to with effective nitrogen fertilizer, each 200-250 grams, according to the growth of the tree, topdressing is mainly in order to meet the germination of fruit trees to extract new shoots and flowering nutrient needs.Second, flower fertilizer, fruit trees blossom will consume a large amount of nutrients, flowers die, fruit trees need a lot of young fruit nutrient supply, so the need according to meet the needs of young fruit of nutrients, give priority to with NPK fertilizer application at this time, to reduce the physiological fruit drop, promote the growth of the fruit, and this time the foliar fertilizer fertilizer can choose rich in a variety of nutrition elements, plant nutrients, promote the fruit enlargement.Taste emperor plum in June mature, green skin red meat three, after picking fruit, this time with is the base fertilizer, call base fertilizer again.Mainly with organic fertilizer, phosphate fertilizer and organic fertilizer mixed into the application, also can add a small amount of nitrogen.April, September before the plum tree leaves, apply topdressing again, this time a mu of about a bag of fertilizer, 45 potassium sulfate content.Five, flower fertilizer, fruit trees blossom will consume a large amount of nutrients, flowers die, fruit trees need a lot of young fruit nutrient supply, so the need according to meet the needs of young fruit of nutrients, give priority to with NPK fertilizer application at this time, to reduce the physiological fruit drop, promote the growth of the fruit, and this time the foliar fertilizer fertilizer can choose rich in a variety of nutrition elements, plant nutrients, promote the fruit enlargement.Apply less fertilizer to young trees and flourishing trees, because young trees and flourishing trees bear little fruit and need less fertilizer.And poor fertility of trees, trees need more fertilizer.But according to the soil conditions to fertilize, such precision fertilization not only does not waste fertilizer, according to the need to fertilize, can improve the yield of plum trees, ensure the quality of plum, protect soil fertility, reduce soil compaction and other conditions.In addition, according to the yield of different determine the amount of fertilizer, if per mu fruit yield 1200 to 2000 catties, need to apply organic fertilizer 4000 to 5000 catties, urea 50 to 80 catties, potassium fertilizer 40 to 60 catties, phosphate fertilizer 100 to 120 catties;If a single tree fruit 100 catties, each tree need to apply organic fertilizer 200 catties, ammonium sulfate 4 to 9 catties, superphosphate and potassium sulfate half catties to 1 catties.Three, plum fertilization method (1) radial ditch application.Mainly used for topdressing.(2) wheel groove application.Suitable for saplings and mountain orchards (3).Suitable for flat orchard.(4) acupoint application or acupoint storage water.Suitable for tablet fertilizer or sand.The depth of fertilization is generally between 20 ~ 40 calcium fertilizer, and it is appropriate to use the part outside the middle of tree canopy projection.Foliar spraying: foliar spraying can be absorbed and utilized in 15 ~ 120 minutes after spraying, so foliar spraying can have a good effect in the critical period of fruit tree growth and development (such as flower bud differentiation or lack of certain elements).Attention should be paid when spraying fertilizer :(1) if it is sunny, it should be sprayed before 10 in the morning or after 4 in the afternoon.(2) because the back of the leaf absorption fertilizer faster than the leaf, so it must focus on the back of the leaf spray.(3) The concentration should be appropriate, the commonly used concentration is generally about 0.3%.