Control of weeds in Schizandra chinensis
1. The investigation results of weed species in Schisandra chinensis field showed that barnyardgrass, Digitaria, amaranth, Chenopodium, Chenopodium and Chenopodium were the most serious weeds in Schisandra chinensis field.
2. The routine control of weeds in Schisandra chinensis orchard the conventional control of weeds in Schisandra chinensis orchard can be carried out at the same time combined with the intertillage of Schisandra chinensis orchard, which should be carried out 4 or 5 times a year, with a depth of about 10 cm, which makes the soil loose and permeable, and plays the role of drought resistance and water conservation. Weeding is an important means to avoid nutrient loss and plants have enough nutrition and healthy growth. Do not hurt the root in the process of weeding, especially the main vine on the ground, once the damage is very easy to cause root rot, resulting in plant death.
3. The traditional manual weeding in Schisandra chinensis orchard is laborious and laborious, and the use of herbicides can effectively improve the production efficiency. Chemical weeding can be used on the premise of fully mastering the medicinal properties and chemical use technology.
The main results are as follows: (1) Fine grass is a new highly selective herbicide for stem and leaf treatment in dry field, which can effectively control annual grasses such as barnyardgrass, wild oat, satang, Niangmai, Setaria angustifolia, Euphorbia angustifolia and so on. Schisandra chinensis was transplanted from seedling bed to Honda from late April to early May. After transplanting slow seedlings, Jinghe Caoke could be applied at any time in the flourishing period of Gramineae weeds, but it was best to apply it at the weed stage of 3 or 5 leaves. 1.5% fine grass per mu can be used for 70 ml to 30-40 kg of water, stir well and spray on the stems and leaves of weeds. When controlling perennial weeds, the dosage can be divided into two doses, which can improve the weeding effect, and the interval between the two doses is 20-30 days.
Pay attention to when taking medicine:
① weeds with young leaves, luxuriant growth and good water conditions are used with low dosage, high dosage under drought conditions and high soil moisture, which are beneficial to the absorption and transmission of fine grass grams by weeds, and are not suitable for long-term drought, no rain and air relative humidity less than 65%.
② is generally applied in the morning and evening, there should be no rain within 2 hours after application, long-term drought, if there is rain in the near future, the field soil moisture should be improved after rain. ③ Jing Gao Ke is a kind of aroxy phenoxypropionate herbicide, which is not suitable to be mixed with hormones, sulfonylureas, diphenyl ethers such as 2B4-D, 2-methyl-4-chlorine, trimethoprim, prednisone and other herbicides.
(2) paraquat is commonly known as paraquat in English, also known as Ke Wuzhuo, Quick to grass, and the dosage form is 20% water. It is characterized by a rapid extinction herbicide, which has contact killing effect and certain internal absorption effect, which can be quickly absorbed by plant green tissue and make it die, but has no effect on non-green tissue. It is quickly combined with soil and passivated in soil, but has no effect on plant roots, perennial underground stems and persistent roots. It is suitable for controlling weeds in orchards, mulberry orchards, rubber orchards and forest belts, and can also be used to control weeds in non-cultivated land, ridges and roadsides. For Schisandra chinensis orchards and nurseries, directional spray can be adopted to control weeds. When the weeds are in full bloom, use 20% water agent 100,200ml per mu, 25 kg water, spray weed stems and leaves evenly, when the weeds grow to more than 30cm, the dosage should be doubled.
Pay attention to when taking medicine:
① paraquat is a fungicidal herbicide used in the growing period of Schisandra chinensis to avoid polluting crops so as to avoid drug damage.
② dispensing, spraying should have protective measures, wear rubber gloves, masks, wear work clothes. If the liquid is splashed on the eyes or skin, rinse immediately.
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Hybrid seed production method of Schisandra chinensis
First of all, a good tree shape is selected in the mountain, with a large amount of fruit, large clusters, large grains and many fruits as a whole, evenly harvest seeds, direct seeding and raising seedlings, and when entering the peak fruit period, enter the garden to select the same criteria as above. During the spring direct broadcast, the seeds of two trees with outstanding performance were selected, marked with the male and female parents respectively, far away from the production garden, and pollinated trees were prepared in the form of 2:1. The fruit matured and observed in the garden to see whether the whole orchard was consistent with the whole hanging fruit. Standard string ratio, whether there is the phenomenon of grain size or not, the fruit yield per plant is more than 5 kg, which is in line with the appellate standard.
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Soil Management of Schisandra chinensis Garden
In nature, soil is the basis of plant growth and the source of water and nutrients. If the soil is deep, loose and well ventilated, the microorganisms in the soil are active, which can improve soil fertility, which is beneficial to root growth, enhance metabolism, and play an important role in enhancing tree potential, yield per unit area and fruit quality. Therefore, soil management is an important part of pollution-free standardized cultivation of Schisandra chinensis. The soil management of Schisandra chinensis is based on its growth and development characteristics and nutritional status.
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