Yaotian lack seedling practical remediation experience

After sowing, due to severe drought, soil loss or rain, low temperature, rotten seeds, disease, insects, grass and other hazards, the spring sowing of medicinal materials can easily cause the drug field lack of seedlings broken ridge strips, if not take effective remedial measures in time, will directly affect the field The stable production and high yield of medicinal materials and the planting efficiency of growers. Therefore, it is necessary to take corresponding remedial measures according to different circumstances in order to reduce losses. Now introduce some practical remedial experience for the reference of drug farmers. It is necessary to improve the yield and quality of medicinal materials before pre-planting drugs, and strive to broadcast all seedlings. It is imperative to do a good job in pre-planting treatment of medicinal seeds while selecting and breeding good varieties. Although some medicinal seeds are new seeds, if the seeds are not treated or the processing techniques are not correct, there will still be phenomena of low seed germination rate or failure to germinate, which will cause serious deficiency of the seedlings in the field. Therefore, the scientific treatment of medicinal seeds before sowing is an economic and effective measure to increase production, which can improve the quality of seeds, prevent diseases and insect pests, promote seed germination and seedling seedlings and seedlings. Commonly used seed treatment methods include: soaking treatment, mechanical treatment, refrigeration treatment, auxin treatment and other methods, which can effectively prevent the occurrence of seedling deficiency phenomenon. Herbal seed coating Seeds coating is to wrap a coat of “coat” (seed coating agent) on the outside of the medicinal seeds to give the seed a protective barrier. After sowing, it absorbs water and swells. The active ingredients in the seed coating agent are rapidly absorbed by the medicinal seeds. It can disinfect the drug and prevent seedling diseases, insects, birds, and rodents, resist the bad weather, increase the emergence rate, and promote the seedling Miao Zhuang can better prevent the emergence of seedlings and ridges in drug fields, and save labor and labor for provinces, provinces and provinces, reduce pollution, reduce costs, and increase profits. After the sowing of the medicinal seeds in areas where there are many spring rains, it is necessary to pay special attention to clearing up the ditch, middle ditch, and ditch. The ditch and the middle ditch should be deeper than the ditch and should be opened to the bottom of the plow to facilitate drainage and reduce the groundwater level so that the pharmacy field can be stopped from drying. In addition, as far as possible to grow into pieces, in order to prevent the field of water seepage into the medicine field, resulting in wet damage, not due to waterlogging and loss of seedlings and reduce production. If rain falls after the sowing of the medicinal herbs, the soil should be promptly gripped by loose tillage when the soil moisture is suitable, and the top soil compaction will be broken and the soil will be raised to raise the ground temperature. The lines should be deep and deep, and the borders should be shallow, which can not only reduce nutrient consumption, but also can loosen the soil, improve the ventilation conditions, help the buds top soil, help the seedlings of the medicinal materials to be successfully unearthed, improve the germination ability, and increase the effective drug vaccine. Number of plants. For example, if there is a danger of dryness in the soil of the medicine field, it may be repeated and the ridges may be used to suppress the joints. For especially arid regions, drought protection is one of the key measures to win over the whole seedlings of Yaotian, which can reduce the evaporation of water, and can be covered with plastic film in places where conditions permit, and it can reduce the amount of evaporation on the ground and the soil layer in the sowing layer. Lee seed germination seedlings. Germination and seed sowing should be carried out before sowing, and seed selection should be conducted on rainy days. Due to high soil moisture, if seeds are sown by conventional methods, the seeds of herbs will be susceptible to mildew, uneven seedlings, or due to dry, rotten seeds, and rot. Less than 60% of shoots are sprouted. This situation should occur within 10 days of seedling emergence. Seeds soaked with germination should be replanted with water and the seed should be planted when the seed of the medicinal material is hauled in half-meter-long buds. This can effectively prevent bad seeds and prevent drought. Buds dry, early emergence of seedlings to ensure that the basic seedlings. For example, if the seedlings are replanted, the seeds should be saturated with hot water at 50°C. Stir hotly and stir. After cooling, add enough cold water blisters for 6 to 8 hours. Store them in a bag and wash them twice daily with warm water. On top of it, a soaked grass bag was placed. On the third day, the white tip of the seed of Astragalus membranaceus emerged and it could be replanted in Yaotian. In addition to seedlings for seedlings in the field of seed cultivation, 10% to 30% of medicinal seeds are used for seedlings (6x6 to 6x8 cm) for the supply of plastic products to prepare for seedlings. Grasp the cloudy end of the head, the cold tail warm head, to seize the fine sowing, required 4 to 5 sunny days after the seed sowing, in order to achieve a broadcast full seedlings. In addition, 300 times carbendazim dilution was sprayed on the sputum before sowing, and then soil was poured with diluted manure water. After the manure was infiltrated, two or three seeds per seedling were generally placed, but it was covered with fine soil, but not Too thick or clod is too large, otherwise it will affect the germination rate of medicinal seeds and reduce the emergence rate. After the emergence of strengthening management, to meet the specifications after the removal of transplants to fill the gap. Seedlings with nutrient preparations do not damage the roots, and they are more robust. After transplanting and no seedlings, it can be grown in the same period as Daejeon seedlings. Transplanting seedlings such as drug seedlings just emerged from the true leaves, and when the field was about 30 percent short of seedlings, the seedlings could be planted on the spot to make up the plant. When transplanting, as little as possible to hurt the seedling roots, pouring enough water, covering the soil; if the seedling age has reached 2 true leaves, field seedlings less than 20%, can be dug in the lack of seedlings deep and wide 15 ~ The 20-cm seedling pit was filled with water, and then the seedlings were transplanted with soil and ditches. When transplanting, as long as the soil is not scattered and buried, it can be transplanted to survive. However, the transplanted seedlings should be supplemented with fertilizer water after transplanting to promote the healthy development of individuals. Transplanting seedlings to the seedlings incomplete, broken ridges and plants in severe drug fields, the use of seedlings to transplant seedlings to achieve the method of seedlings. In places close to water sources, the well-treated and germinated drugs are evenly sowed in nursery beds, covered with soil, slightly repressed, and irrigated with water, covered with rice straw, and moistened and moisturized. Generally, about 10 days, the medicinal species can emerge and be removed. Rice straw, to strengthen seedbed management, seedling height 8 ~ 15 cm can be transplanted with soil. In order to improve the inherent resilience of the drug seedlings, a few days before transplanting, in addition to paying attention to simmering seedlings, the drug seedlings must be fed with fertilizers, belts, and drugs, and must be applied 5 to 6 days before transplanting. 1,000 kg of clear manure or 5 kg of urea is poured into the water to achieve the force without coloring. When arid areas are transplanted, they can survive if they are exposed for two days. Where appropriate, watering the seedlings can be appropriate. Note: Whether transplanting seedlings or transplanting seedlings, care should be taken not to injure the roots and growth points of the seedlings, so as to avoid lowering the survival rate and the occurrence of inferior medicines. In addition, during transplanting seasons such as in dry weather, the roots of transplanting medicine seedlings have serious water loss, and whether or not they can fully inject water to live trees at one time is to promote early awakening, early-onset growth, increase the survival rate, and reduce the lack of monopoly seedlings. The essential. Early transplanting temperature is low, evaporation is small, about 2500 kilograms per acre, the temperature of transplanting the middle and late leaves is high, the leaves of the medicinal seedlings are large, the amount of water is large, and the water is required to be 4000-5000 per acre. kg. If a small amount of seedlings is found in the Dingmiao Dingzao, and when the seedlings are replanted and transplanted late, the seedlings can be retained, the strong seedlings can be selected, and the two plants can be left without two leaves (three seedlings). ) Or leave two plants in each of the two adjacent plants and maintain a reasonable number of plants. Elimination of underground pests such as earthworms, cockroaches, earthworms, and golden worms, etc., causes serious damage to medicinal plant seedlings. Some foods have unearthed medicinal seeds, roots, stems, roots and tubers, and some have not been excavated. Buds or newly emerged cotyledons or growing points. According to observations, a larvae over 4 years of age, on average, can bite off 3 to 5 seedlings of medicinal herbs at an average of 10 or more strains at a time, often resulting in a large number of seedlings and ridges in the field, causing poor growth of medicinal seedlings. Practice has proved that prevention and control of underground pest pests, combined with the use of pesticide seed dressing, root irrigation, poisoning soil, artificial capture, trapping and killing adults, ground spraying, plant spraying and other measures, have a better control effect. Prevent weeds from harming the field If the seedlings are not cultivated and weeded in time, and the management is extensive, the weeds can spread widely in the intercropping areas and spread quickly. The damage is severe and the grasses are prone to occur, seriously affecting the growth and development of the drug seedlings, and even causing the destruction of the seedlings in the waste fields. huge loss. Where conditions permit, weeds should be used for comprehensive control of weeds in weeds to eliminate weeds in the bud or seedling stage. Agricultural control, mechanical control, biological weed control, plant quarantine, chemical weeding, and weeding and other comprehensive control measures were adopted to control the growth and damage of weeds in drug fields. Although the seedlings of top dressing and seedlings need less fertilizer, they are very sensitive to fertilizers. Late seedlings, weak seedlings, slow-moving seedlings, early recruitment of Miaofei, can accelerate its stand up and promote early-onset, so that drug seedlings grow in balance, strong but not bad, in order to expand the group. - General urea per acre 5 ~ 7.5 kg (or thin manure water). When dressing fertilizer, it is necessary to apply less seedlings, apply more seedlings, and apply weak seedlings on both sides. It is better to catch water after drought. However, in general high-yield fields, base fertilizers, and planted fertilizers may not be used as seedlings. At the same time, timely application of phosphate fertilizer can promote drug seedlings early delivery, early rooting, speed up the process of plant growth, and it is beneficial to cultivate strong seedlings and increase yield. Generally apply 10 to 15 kilograms of superphosphate per acre, first soaked for a day and night, then pour water to cast, the effect of top-dressing seedlings and seedlings is more obvious. The inter-cropping of the former and the “four early” and “five rushes” interplanting crops in the former crops. The early crops have not been completely defoliated, and the medicine seedlings will be under shading for a period of time. The lighting conditions are poor and the ventilation is not good. Under the conditions of high humidity in the field, it is easy to form weak seedlings with narrow leaves and bunches, and low tillering occurs. Less, hard to get strong seedlings. Therefore, preservation of seedlings is mainly for the seedlings of medicinal herbs to win light, compete for temperature, and compete for time. It can provide timely support to crops such as former buckwheat and rapeseed, which can prevent the lodging of oil and wheat crops, increase the inter-row illumination of medicinal herbs, and prevent rotten seedlings from sprouting. "Four mornings", that is, after unearthed drug seedlings in oil, wheat, early soil weeding, early seedlings, as early as Miaofei, early prevention and control of pests and diseases. "Five grabs" means that before and after the harvest of oil and wheat crops, they must grab seedlings to transfer seedlings, grab cultivator, kill hoe, rob for "windfall fertilizers", rush to control pests and diseases, rush to clear the trenches, and prevent flooding. , Exclude water accumulation, reduce soil moisture, improve ventilation conditions, enhance root vigor and sucking up fertilizer function, and promote early transformation of drug seedlings.