Key points of field management of the latest alisma orientalis

Alisma alismatis is a perennial aquatic plant of the family Alismatidae, and it is also a common weed and traditional Chinese medicine in China, which is mainly distributed in Northeast China. And the florescence of alisma orientalis is relatively long, the flowers are also relatively large, and its ornamental value is also relatively high. Therefore, the planting area of alisma alismatis is also relatively broad in our country, so how should we manage it when planting alisma orientalis? The following editor brings you the key points of field management of alisma orientalis. Let's have a look!

1. Replenish seedlings with intermediate seedlings

After alisma alismatis planting, the growth of alisma alismatis seedlings should be observed regularly and carefully. If you find seedlings that have been blown down by the wind or other factors, straighten the seedlings immediately and cultivate the soil to plant them steadily. Then do a good job in the work of seedlings, control the row spacing, and retain the seedlings that grow healthily and free from diseases and insect pests. If there is a lack of seedling holes, then it is also necessary to make up the seedlings of the same growth in time to ensure that the seedlings are whole. And in the later stage, if it is found that there are weak seedlings and pest seedlings, they should also make up the seedlings with the same growth immediately.

2. Ploughing and topdressing

The nutritional demand of alisma orientalis is relatively large, and its growth period is not long, so if you want to have a high yield when planting, reasonable topdressing is the key. Each topdressing can be carried out with the weeding work of ploughing and weeding, usually about 4 times during the whole growth period. Topdressing can be started after alisma alismatis planting for about 60-80 days, and the dosage can be controlled according to the actual growth of seedlings. If the leaves of alisma alisma seedlings are hard and erect, it means that the seedlings are now lack of fertilizer. When applying fertilizer, it is mainly rotten farm manure, and the proportion of phosphorus and potassium fertilizer should be increased to promote the expansion of alisma alismatis corms to meet the nutritional needs of alisma alismatis seedlings. Then ploughing and weeding should be done in time after each fertilization.

3. Rational watering

Alisma alisma is a kind of aquatic plant, so it has a great demand for water in its growth. However, the water level requirements of alisma alismatis will change in different growing periods, and the water temperature in the field should be kept at about 3 cm after the seedlings are planted. Then, after the second ploughing and fertilization, the growth ability of the aboveground part is relatively strong, and the demand for water is greater, so the water level should be appropriately increased to about 5 cm. Then, after the next intertillage, the tuber enters a period of vigorous growth, at which time the water level should be lowered appropriately to avoid root rot caused by too much water.

4. Pick the bud and remove the moss

After the completion of the second intertillage weeding, attention should be paid to the growth of lateral buds and bolts produced by alisma alismatis plants, and they should be removed in time. Because the utilization value of lateral bud flower bolts is relatively low, but also consume a lot of nutrition. When picking the flower stalk, it should be broken from the base of the plant, not residual, to avoid bolting again. The method of picking lateral buds is similar to that of other plants, mainly to ensure the healthy growth of alisma orientalis. And doing a good job of picking buds and removing moss can effectively improve field permeability and promote the growth of alisma orientalis.

The above is a brief introduction to the main points of field management of alisma alismatis, of course, we should also do a good job in the prevention and control of diseases and insect pests, prevent harm to alisma alismatis plants, reduce yield and affect planting efficiency. And it should be noted that the whole plant of alisma alisma is poisonous, especially the tuber is more toxic, so you must be guided by a professional before taking it. That's all for today's introduction. This article is for reference only. I hope it can help you all.