High-yielding Cultivation Techniques of Large Fruit Seabuckthorn
1 The choice of garden soil is based on the choice of loose soil, good air permeability, slightly alkaline pH value of 8 to 8 and salt content of 2 varieties of sea buckthorn (fruit weight 0.5g or more), high yield (average yield per plant 2kg) The above), thornless or soft-thorn large seabuckthorn tender shoot cuttings or root seedlings to maintain the characteristics of the original species and distinguish between male and female plants. 3 The planting density and the allocation of male and female plants are generally based on the fruit production purpose of the sea buckthorn plant, the plant spacing is 2m4m; for mining strip cuttings, the row spacing is 1m3m. Seabuckthorn is a dioecious plant. The ratio of male to female and the configuration method have a great influence on fruit yield. If the male pollen volume is large, the proportion of male plants can be smaller, whereas the proportion should be larger. Generally, the ratio of male and female plants is 1:8. 4 Soil management Before the results of the large fruit buckthorn orchard, we can make full use of the space between the rows for pastures, legumes and other dwarf crops to increase efficiency. The seabuckthorn garden needs to be ploughed several times a year, with a depth of 4 to 5 cm, based on the principle of not damaging the horizontal root system of seabuckthorn. 5 Fertilizer and water management The yield of large fruit seabuckthorn is high, and the impact of irrigation and fertilization on its yield is very obvious. When planting seabuckthorn seedlings, bottom water should be fed and the number of waterings should be determined depending on the conditions during the growing season. The watering is usually done 4 times a year, respectively, in the bud, pre-growth, late growth and before winter. The large fruit seabuckthorn needs more nitrogen fertilizer in the early growth period, and more phosphorus and potassium fertilizer are needed in the later period. According to experiments, the ratio of seabuckthorn to fertilizer is N:P:K=1:2:1. Generally need to diammonium phosphate 75 ~ 105kg/hm2, about 50g hole application; potassium fertilizer 38 ~ 45kg/hm2, hole Shi 25g or so. 6 Rational trimming of seabuckthorn young trees in order to maintain the balance of tree vigor, can be properly pruned, keep the three branches of germination for the backbone branches, remove excessive branches. When entering the result period, pruning is conducted every year during the dormant period. First, the dead branches, the branches and branches of the pests are cut off, and then the branches with long legs, cross branches, and dense branches are removed. When the tree is too old (15 years old or older), the branches are aging, and the growth is significantly degraded, the rejuvenation pruning is performed, ie, one axis branch is kept and all the other branches are cut off to promote the re-emergence of the branches to restore the tree vigor.