“This year, the town’s more than 10,000 acres of sweet-scented osmanthus also enjoyed a good harvest. A small adult of sweet-scented osmanthus can produce 40-50 kilograms, and more can produce more than 100 kilograms. The osmanthus knot is more or less, the size and quality of the flower are not good. Well, apart from being related to breeds, it also has a lot to do with scientific management and technology.†On September 2, the author visited Fenghai Town, Naxi District, Cangzhou, Sichuan Province, China’s Xianghai Sweet-scented Osmanthus Park, and saw Fenggui in the area. Liu Qianlun, a senior horticulturist of the nursery stock cooperatives, is explaining the high-yield, stable-production science and technology “jingjing†of osmanthus to several nearby osmanthus growers.
After all, does Osmanthus's high production and stable production support technology? What management and technical tips are there? How to prepare Osmanthus farmers? In this regard, the horticultural expert Liu Qianlun introduced the operating techniques such as deep turning, soil fertigation, pest control, and timely harvesting. These are as follows:
Earth deep
"After harvesting in September each year, the sweet-scented osmanthus in southern Sichuan should be covered with a layer of basal fertilizer under the canopy, and then deep-turned layer by layer under the canopy, with a depth of about 35 centimeters, so that the fertilizer can be mixed into the soil and the soil can be 10-20. Centimeter thick, conducive to root growth and absorption of fertilizers." According to Liu Qianlun introduction, deep turning soil is to accelerate the osmanthus tree root elongation and development of one of the main measures.
"To see the garden, see the soil, and see the soil," Liu Qianlun said: The principles of root and stem dew, deep soil, thick roots, and shallow culture should be mastered in the deep turning of the soil. “Deeply dig the soil on the slope, dig deep into the soil under the slope; deep in the ridge to dig the soil, pick the fertile soil; lightly excavate the earth in the foothills, pick the sand and sand; the original soil is heavy, compacted, damp, moss and roots , should cultivate the sand, and open the ditch drainage and ditch drainage, improve soil fertility, water conservation, and insulation capacity."
Fertilizer application three times a year
"Osmanthus must produce high yields and stable yields. This step of increasing fertilization is very important, and is directly related to the density and size of the flowers." Liu Qianlun told the author that, in general, an adult osmanthus tree should be applied at least three times a year. The specific operations are as follows:
The first application of “returning Yangfeiâ€, after artificial harvesting of osmanthus, the branches were damaged, and fertilization accelerated the recovery of the tree, laying the foundation for the high yield and stable production of osmanthus in the following year. In the middle and late September each year after the sweet-scented osmanthus harvest, combined with deep-rooted soil, each tree composted with cake fertilizers mixed rotting organic fertilizer l5-20 Tam, about 20 kg of phosphate fertilizer.
The second application of "Feeding fertilizer." The adult sweet-scented osmanthus trees only send out one-season spring shoots a year. The spring shoots were also the flowering skills of the year. The spring shoots were long and strong, and the flowers blossomed year after year. Fertilization in the spring of March, when the sweet-scented osmanthus trees began to germinate, each tree urine 5-8 urine, plus 3-5 kg ​​of urea, open a small ditch in the canopy, each separated by 80-100 cm open ditch. Water and dung are evenly applied into the ditch, and then the urea is spread evenly and the soil is finally covered.
The third application of "tough shoot fertilizer" is also called flower bud fertilizer. In late April, the growth of spring shoots ceases, and before flowering in early May, this period of time is the gradual maturation of flower buds and the formation of flower buds. Fertilization can promote the growth of new shoots, flower buds, and flowers. Each osmanthus tree planted 8-10 urine urine, urea 1.5-2.5 kilograms, applied in the canopy under the canopy, applied in time after the cover soil. Shallow hoeing and weeding, loosening of the topsoil, and favorable root growth and development. In addition to small, early, dilute weeds, generally 3-5 times shallow year. At the same time, special attention is paid in the summer to the thorough removal of rabbit silkworms that are parasitic on the canopy.
Insect pest control ants at any time to prevent
According to Liu Qianlun, in the autumn and winter, the stems of the laurel trees should be smeared with 10%-15% lime milk to eliminate parasite eggs in the cracks of the skin; in the spring and summer, the moths, whiteflies and red spiders should be used with dimethoate, Dichlorvos and pesticides are sprayed 1000-1500 times. During the mildew season, mosses and lichens spread quickly. They must be scraped with bamboo and then sprayed with 1%-1.5% ferrous sulfate or 6%-8% caustic soda.
"For serious termite damage, we must dig around the osmanthus tree damage area, pit width, pit depth of 50 cm, placed in the pit pine, sugar cane and other food, the surface of brown sugar water seduce." Liu Qianglun said.
Timely harvesting improves quality
In the fall season, timely harvesting of sweet-scented osmanthus is an effective measure to increase its yield and quality. "Osmanthus from the bud opening to full open generally only 8-9 days should be mastered in the third day after bud opening, when the bud rift 5-10 mm, tiger claw shape, the most colorful when the picking." Liu Qianlun remind everyone, harvesting Sweet-scented osmanthus flowers are harvested in the morning before sunrise and picked in the morning on cloudy days. The foggy days can be picked all day. Because at this time the air humidity is high, the water collected under the flowers is less dispersed, and it is easy to keep fresh and increase the aroma.
“When picking, first spread white cloth or tape on the canopy ground, and then stand on the ladder to shake the flowering branch by hand or tap the flowering branch with bamboo sticks to make the flowers fall. After the flowers are collected, they are immediately sieved and checked for impurities. Tie stems, timely sale or preservation treatment." Liu Qianglun finally said.
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