What aspects should be paid attention to in the daily management of Sanqi Garden?

(1) Adjust the shading of shade shed and fence. Shading shed should be adjusted from spring to autumn according to the principle of sparse-dense-sparse. In early spring, the temperature is low, and the light transmittance can be larger, and the light transmittance is about 60%, so that the seedlings can be fully exercised and thick and short. After the first ten days of April, the temperature and light intensity gradually increased, and the shade shed should be gradually encrypted. The light transmittance is about 30% ~ 40% from May to September. After 10, the temperature and sunshine gradually weaken, and the light transmittance can be slightly higher, about 50%, so as to promote seed fullness and root system increase. Fences and garden gates should also be properly adjusted. In hot and humid weather, the gate of the garden should be opened.

(2) When the water content of drought-resistant and waterlogging-tolerant soil reaches 25% ~ 30%, Panax notoginseng grows well. If the soil moisture content falls below 20%, the emergence rate of Panax notoginseng will decrease in early spring, which will cause plant wilting and affect the flowering and fruiting in autumn. Therefore, in case of drought, water it with a watering can in the morning or at night. Light pouring, uniform pouring and thorough pouring are required, and sprinkler irrigation or drip irrigation can be used when conditions permit.

Pay attention to drainage in rainy season to ensure smooth drainage in the park, otherwise the humidity in the park will be too high, pests and diseases will increase, and root rot will easily occur.

(3) Weeding and topdressing weeds not only compete for nutrients of Panax notoginseng, but also are hotbeds of diseases and insect pests. So weeding must be done well. Weeding should be done after rain 1 ~ 2 days, and be careful when weeding. Weeds near the roots of Panax notoginseng should be held down with one hand and gently pulled out with the other hand so as not to affect the roots of Panax notoginseng. Where there are small holes when weeding, or where the roots of Panax notoginseng are exposed, cover them with thin fine soil. Topdressing should be based on the principle of "small amount and more application". At the early stage of seedling emergence, plant ash should be applied to the border for 2-3 times, and 225-50kg should be applied every 667m each time, so as to promote the robust tissue of seedlings and reduce the harm of pests and diseases. From April to May, Hefei is mixed with fertilizer ash once a month, and the dosage is 2500 ~ 1000 kg per 667 meters to promote the vigorous growth of plants. In compound fertilizer, manure ash accounts for 30% ~ 40%, and peat ash accounts for 60% ~ 70%. From June to August, Panax notoginseng should be mixed with Hefei for 2 ~ 3 times, and the dosage of each time is 65438+. The top dressing of Panax notoginseng is mostly applied by spreading. The mixed fertilizer is broken and evenly spread on the border when the dew is dry. Then the leaves are gently stirred with a stick to shake off the fertilizer stuck on the leaves, and then the surface of the border is gently stirred to make the fertilizer fall on the soil surface.

(4) In order to concentrate nutrients on the roots, when bolting begins in June, especially when the fruit yield is low and the fruit is small in July of the following year, the seedless plants should be removed in time, and all the plants should be removed. Tapping can increase the yield of Panax notoginseng by more than 50%, and the quality is better. Seed plants usually have many fruits, which causes pedicels to fall off. Small bamboo strips should be inserted next to the plants to support the fruits.

(5) Winter management 65438+early February, the stems and leaves of Panax notoginseng gradually aged and withered, and the root tuber entered the hibernation period. At this time, the stems and leaves about 3 cm above the ground should be cut off, and the dead stems and leaves should be collected. Except for clean weeds and grass covers inside and outside the garden, all of them should be burned outside the garden, and 0.2 ~ 0.3 Baumeister sulfur mixture should be fully sprayed on the soil. If exposed tubers or rhizomes are found in the border, cover them with fine soil, then apply decomposed compost 1000 ~ 1500 kg every 667 m2, and then build a new shed. In addition, it is necessary to comprehensively check whether the lampshade material is firm. If the wood is moldy and the iron wire is broken, it should be replaced and repaired in time. The light transmittance of the shade shed should also be adjusted to about 60%, which can increase the sunshine in the garden, raise the ground temperature and promote the growth and development of Panax notoginseng in the next year.