How to plant seed of Cassia seed

Cassia seed is a very common and important medicinal material, which has the effects of clearing liver and improving eyesight, moistening intestines and relaxing bowels. The planting range of Cassia seed is also increasing. How do you plant seeds?

I. Seed selection

Select high-quality planting, soak it in warm water at 50℃ for one day and night, wait for it to absorb moisture and expand, remove and dry the surface, and sow it. The sowing period is from Qingming to grain rain (mid-April), and the temperature is 15-20℃. It is too early, the ground temperature is low, and the seeds are easy to rot in the soil; too late, the seeds cannot mature, affecting the yield and quality. Sowing is suitable for drilling, row spacing is 50-70cm, 5- 6 cm deep ditch is opened, seeds are evenly scattered in the ditch, covered with soil for 3 cm, slightly suppressed, and seedlings emerge about 10 days after sowing. North drought days, to first irrigate after sowing, do not sow after watering, so as not to affect the emergence of topsoil hardening.

II. Weeding

When the seedling height is 3-6cm, thin the seedlings and pull out the weak seedlings or over-dense seedlings; when the seedling height is 10- 13cm, fix the seedlings, and the plant spacing is about 30cm. At the same time of thinning and fixing seedlings, loosen the soil and weed, keep the soil loose. Cassia seed is more drought resistant, the soil can maintain general humidity can grow normally, dry days, appropriate watering, but in the seedling period should be less watering, to white dew (early September), the fruit tends to mature, can stop watering.

III. Fixing seedlings and topdressing

Cassia seed seedlings about 5 cm high began thinning seedlings. When the seedling height is 15 cm, the seedling is fixed according to the plant spacing of 30-40 cm in combination with intertillage and weeding. The seedling height is about 35cm. Before the plant is closed, 20kg calcium superphosphate and 10-15k8 ammonium sulfate are applied per mu, mixed with each other, and then cultivated in the soil. The fertilizer is buried in the soil, and the plant can be prevented from lodging.

IV. Watering

Cassia seed throughout the growth period should always keep the soil moist, especially flowering days should be timely watering drought, rainy season pay attention to drainage.

V. Diseases and pests

Gray spot disease is common in Cassia seed, and its pathogen is a kind of semi-fungi, which mainly damages leaves. At the beginning, a slightly pale brown spot appeared in the center of the leaf, followed by gray mold on the spot. Before or at the early stage of the disease, spray 500 times of 65% zinc solution or 800-1000 times of 50% special solution to eliminate bacteria. Insect pests mostly occurred in late spring and early summer, mainly bud insects, with dimethoate emulsion prepared into 200 times solution spray treatment.

VI. Harvest

Semen Cassiae is harvested when the pods are brown before and after "cold dew", cut off the whole plant, lay the seeds after drying, remove the pericarp and impurities, and can be used for medicine. It is better to have full seeds, dry body, brown color, no sand and impurities.

Cassia seed is still widely used, many families will buy Cassia seed to make tea, the prospect of planting is also relatively good, suitable for large-scale planting.