First, increase the application of organic fertilizer, nitrogen control before harvest, phosphorus and potassium fertilizer increased organic fertilizer and phosphorus, potassium fertilizer, can make the fruit surface smooth, increase sugar content. The application amount of organic fertilizer should reach 200 kg. Fertilizers should be applied at a nitrogen:phosphorus:potassium ratio of 1:0.5:1. In July, potassium dihydrogen phosphate was sprayed 2-3 times. Nitrogen fertilizer was used in the later stage of control to obtain high yield and stable yield. It also helped fruit coloring, increased sweetness, improved fruit quality and storage stability. Spraying 0.3%-0.5% calcium in the middle and late June had a significant effect on reducing green head fruit, rough fruit, and black heart disease during storage.
Second, before the watering to promote the post-control requires watering 4 times throughout the year, respectively, before flowering, flowering, flower bud differentiation period and before freezing. When there is a lot of rain, it is necessary to gently flip the tree trays to dry.
Third, strict control of the load In order to improve quality must be through reasonable sparse fruit, control the tree load. Snowflake Pears are required to leave single fruit, branch fruit ratio is 3-4:1, and some pear fruits are left with double fruit and branch fruit ratio is 2-3:1.
Fourth, adjust the tree structure, improve lighting conditions in the fruit period to fall head happy, pay attention to adjust the density of large and medium-sized backbone branches, open the level, open the angle, light into the pupa, keep the light under the tree accounted for 15% of the crown projection area Left and right, and timely renew and renew the branch group to improve the production capacity; the main branch of young trees should be arranged in the south and low in the north to reduce the shading in the shading.
V. Timely prevention and treatment of pests before spraying Sulfur mixture can increase the content of soluble solids in fruits; After germination, carbendazim is sprayed before harvest, the color of fresh fruit is bright, and the content of soluble solids is high. In the later stage of growth, special bacteria will appear on the surface of the fruit and the yellow spots will appear on the fruit surface. Avoid use.
Six, promotion of single fruit bagging technology fruit bagging not only can make the skin color is shrinking, less rust and no rot, bright and clean, but also reduce the damage of pests and increase economic efficiency.
Seventh, the orchard ground covers the use of crop stalks, weeds, etc. to cover the ground, with the effect of reducing water evaporation, maintaining soil temperature, preventing surface runoff, increasing soil fertility, etc., and has a significant effect on increasing single fruit weight and increasing soluble solids. Coverage is as follows: 1. Covered with whole garden, suitable for orchards that are no longer intercropped, 2000-2500 kg of hay per mu, 4000 kg of fresh grass; 2. Partial coverage between trees, suitable for small trees, intercropping or grass Insufficient source of orchards, 1100-1500 kg of hay per mu, 2000-3000 kg of fresh grass, the thickness of both are 10-20 cm.
Eight, the use of reflective silver film to improve the light within the crown.
N95 Face Mask Online,Kn95 Approved Face Mask,Kn95 Approved Mask,Kn95 Respirator Mask
Guangdong Jia Mei Biological Technology Co.Ltd , https://www.jaymeimask.com