What soil does osmanthus like?
In garden planting, osmanthus osmanthus is deeply loved for its rich fragrance and evergreen characteristics. For this "Golden Autumn Fragrant Soul" to thrive, mastering soil characteristics and maintenance skills is particularly important. Based on actual planting experience, this paper systematically combs the soil requirements for the growth of osmanthus osmanthus. The three major characteristics of osmanthus planting soil are the most suitable pH value in the micro-acidic substrate environment, which can be adjusted regularly with sulfur powder. It is recommended to use test paper every quarter. When the pH is greater than 7, it can be improved by adding legus soil or pine needle soil. The ideal soil layer for breathable drainage structures should contain 30% coarse particulate matter, such as river sand, perlite, etc. It can pass the soil holding test: the moist soil can loosen after being held, indicating that the air permeability reaches the standard. The standard humus ratio of organic matter content is recommended to account for 40% of the total soil. Composed pine bark and sheep manure are high-quality organic sources. New soil needs to be replaced every two years when potted, and organic fertilizer is applied every autumn for ground planting. The practical operation plan for courtyard soil allocation is the classic ratio formula garden soil (40%)+ leaf soil (30%)+ coarse river sand (20%)+ bone meal (10%). 5% sulfur powder can be added in the northern region, and 10% vermiculite is recommended in the rainy region in the south. The special terrain improvement is aimed at clay land: excavate 60cm of planted holes, lay a 15cm gravel layer at the bottom, and backfill improved soil. When planting on slopes, half-moon-shaped fish scale pits are built along the contour line to protect water and fertilizer. Prevention measures for hardening of key nodes in soil conservation Carry out 20cm deep intertilling before spring germination, and mix with earthworm cast to improve the structure. Cover pine scales with a thickness of 5 cm before the rainy season, which can not only moisturize but also slow down the hardening speed. Disinfection and sterilization process exposure method: Lay the soil 3-5cm thick in summer and turn it in the sun continuously for 7 days. Pharmaceutical treatment: Pour it thoroughly with 50% carbendazim 800 times solution, seal the film for 3 days, and ventilate it.
Through scientific soil allocation and fine maintenance, the root system of osmanthus can penetrate into the soil layer by 1.5 meters, forming a developed absorption network. Regularly observe the status of the leaves: When the leaves are dark green and the leaf margins are not scorched, it means that the soil environment is in the best state. Master these key points and make the osmanthus trees in the courtyard full of gold and millet every year.