The selected plants of the Scrophulariaceae are deep-rooted plants, and their requirements for the soil are not strict. Plains, hills, and low hill slopes can all be planted. However, it is better to use sandy loam with deep, loose, fertile, well-drained soil. Former grasshopper crops are good, bogey even company.
(I) Selection
Selection of land: Scrophulariaceae deep-rooted plants, the requirements of the soil is not strict, plains, hills and low hillside can be planted, but the soil is deep, loose, fertile, well-drained sandy loam is better. Former grasshopper crops are good, bogey even company.
Site preparation: In February, the land was deep-turned 25 cm. In early March, the land was finely smashed and leveled. Monocropping Field: The cultivation distance of the mulching film was 80 cm. The ditch was cultivated; the open cultivation was 40 cm. Intercropping plots: The plots were intercropped at a distance of 0.8 m and four drainage ditches were opened.
Seedling treatment: it is best to soak for 5 minutes with 50% tumefax 1000 times solution, plant after drying, and use 5000-7000 seedlings per mu. 4. Seedlings planted: about 80 kg of seedlings per mu, cultivated in open field (40 cm in ridge distance). Single rows were planted on the whole ridges, and the hole depth was 8 to 10 cm. Planted (row spacing 80 cm) planted two rows of narrow row spacing 2 5-3 0 cm. Put a selection of buds in each hole and shoots up. After the shoots have been placed, cover the soil 3-5 cm and then reorganize the ridges.
(b) Field Management
(1) Weeding and weeding. (2 times for the plastic film, in late May, before the ridge sealing, the open air will be in the beginning of April, the first time grass.) The weeds are not easy to grow after planting ridges from June to July. No more cultivating and weeding are done. (2) In plant sealing The ridges were topdressed 1-2 times, and the fertilizers were mainly phosphorus and potash fertilizers, and they could be mixed with soil miscellaneous fertilizers to plant or apply furrows between plants. In combination with topdressing, the fallen soil is cultured at the base of the plant, which can protect the growth of the shoots, facilitate the expansion of the roots, and also fix the plants to prevent lodging, as well as moisturizing and resisting drought. Soil cultivation is generally performed after fertilization in mid-June.
(3) Watering in time should be severe drought; drainage should be timely and avoid rot.
Clear tree topping. The clear tree was planted at the seedling stage in mid-to-late June, removing all the tiny axillary buds from the minister. The topping was carried out during the bud of the main stem in the middle and late August, and the main stem without leaf bud was cut off with scissors. Control upper genital hair. Nutrition consumes nutrients and promotes root swelling.
IV. Pest Control
The pests that cause damage to Scrophulariae include spot blotch, white peony disease and cotton red spider. The regularity of the disease and its control methods are as follows:
(1) Spot blotch originated in mid-April and became severe in hot and humid seasons. It was firstly caused by the lower leaves of the plants and brown spots appeared. When the leaves were severe, the leaves died. Control methods: clean garden; rotation; early stage of the disease with 1:1: 100 Bordeaux spray control.
(2) The time of onset of the disease is the same as above, and the root of the disease is harmed. Control methods: rotation; remove the diseased plants and disinfect them with lime water in the diseased points; soak the seed buds with 50% tune-toxin 1000 times for 5 minutes, and then dry them for cultivation.
(3) Cotton spiders originated in June and damaged the leaves. Control methods: clean garden; early onset of spraying with 20% amitraz 10 times liquid, bogey and cotton rotation or neighboring. Harvested Scrophulariae were sowed in the same year and harvested in autumn. After the stems and leaves of the ground are withered, the underground roots are excavated, the dead stems and leaves are cut off, the sub-buds are peeled off, and the roots are removed from the fibrous roots and silt, sun-dried to a half dry state, accumulated for 2-3 days, and then dried or baked to dryness. Slice for medicinal purposes.
Scrophulariaceae generally produce 200 kilograms per mu with a high yield of 400 kilograms.
Single-use samplers are used for sample collection, transportation and storage, etc. Sampling swabs are composed of Swab rods or swab heads, and are divided into cotton swabs or flocking swabs. The swab head is made of chemical fiber (polyester, rayon, etc.), nylon and other non-cotton, non-calcium alginate materials; the swab rod is made of PP, PS, ABS and other non-bamboo/wood materials. The breaking point is located about 3cm and/or 8cm (or any position) from the tip of the swab, which is easy to break.
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