The latest scientific planting technology of cassia seed

1. Land selection and land preparation

Before and after "the Spring Equinox", dig holes in front and back of the house or by the side of the road. Deep ploughing 25cm, applying circle fertilizer 1OOO~3000kg per mu, mashing and spreading evenly, turning the fertilizer into the soil, raking fine and leveling, making a 1m wide border in preparation for sowing.

2. The method of reproduction is to propagate with seeds.

3. The seeds with disease-free, large and full seeds were soaked in 50 ℃ water for 24 hours to get rid of the blighted seeds and worm-eaten seeds. Take out the full seeds, dry them to remove the surface moisture, and then sow them. The sowing time is during "Qingming Festival" and "Grain Rain". Strip sowing, in the whole border according to the row spacing 45cm, open the 3cm about the deep ditch, sow the seeds in the ditch, cover the soil, gently suppress. Before sowing, if the land is dry, water is first watered into the border, and the water seeps down before sowing. The seed consumption per mu is 1: 1.5 kg, and the planting in front and back of the house or sporadic land is generally planted in holes, with 2 to 3 seeds per hole. Flowers are golden yellow, but also ornamental flowers.

3. Cassia seed field management

(1) loosening the soil between seedlings:

When the seedling height of Cassia seed was 6~1Ocm, the weak seedlings were removed according to the distance between plants and 15cm. When the seedlings were high 15cm, the seedlings were fixed by 45cm according to the distance between plants, and the soil was loosened at the same time. When the seedling height is about 30cm, the middle tillage can be properly deepened to keep the soil loose and weed-free. After some of the branches on the plant are sealed, stop loosening the soil and ploughing. When loosening the soil, pay attention to cultivate the soil next to the root of the plant, and gradually form a small ridge to prevent it from being blown down by the strong wind.

(2) topdressing and watering: generally, seedlings can emerge 6-7 days after sowing. After emergence, in case of drought, appropriate watering, after fixing the seedling, in addition to topdressing after watering, generally do not need watering. After setting the seedling for the first time, mix the circle fertilizer (unlimited quantity) with urea and sprinkle it next to the line or hole; hoe once and cover the fertilizer with soil. The second topdressing before and after "the Beginning of Autumn" can be applied with a small amount of chemical fertilizer such as urea or ammonium sulfate per mu. Be careful not to sprinkle chemical fertilizer on the stems and leaves of the plant when topdressing. Water immediately after topdressing. From July to August, if plants without flowering are found, they should be pulled out in time so as not to consume soil fertility.

(3) Prevention and control of diseases and insect pests: there are few diseases and insect pests in Cassia.

1) Gray spot: it harms the leaves and produces brown spots on the leaves. Prevention and cure method: spray 8001000 times solution of 50% bacilli or 65% Dysen zinc at the initial stage of the disease.

2) Ring disease: a disease caused by a fungus, which can damage leaves, stems and pods. The injured part has disease spot with inconspicuous wheel pattern, and there are dense black grains in the later stage. Prevention and treatment methods: at the beginning of the disease, you can use 1-Vera-1-200 Bordeaux liquid, and in severe cases, it can be sprayed with Baume 0.3 degree stone sulfur mixture.

3) aphids: aphids are easy to occur in the seedling stage, and can be controlled with 2000 times of dimethoate or 1:10 tobacco and lime water.

4. Cassia seed breeding

Small cassia seed is often chosen to plant and produce cassia seed. There are differences in seed size and fruiting degree in pods. The seeds with large, fruiting and pest-free seeds are mainly selected as seeds.

Harvest and processing

Before and after "Cold Dew", the pods were harvested when they were yellowish brown. Cut off the whole plant, dry it, lay down the seeds, remove the peel and impurities, and then it can be used as medicine.

The seeds of cassia seed are full, dry, yellowish brown, free of sand and impurities.