(1) Spring sowing: Sow before and after Tomb-Sweeping Day, and harvest before and after the autumn equinox. During the growing period 150 days, the whole grass grows tall and thick. Schizonepeta tenuifolia has high yield and many branches, but the yield of Schizonepeta tenuifolia spike is not high. In order to harvest Schizonepeta tenuifolia, it is not advisable to sow it too early.

(2) Summer sowing: During the period from "ear seed" to "summer solstice", wheat stubble can be sown and harvested after "cold dew". Growth period 120 days, the whole grass grows short, with few lateral branches and more Schizonepeta tenuifolia ears, with good quality. There are two methods: drilling and broadcasting.

2. A planting method of Schizonepeta tenuifolia

(1) land selection and preparation:

It is advisable to choose fertile sandy loam with good drainage for planting, and the terrain should be sunny and flat. The seeds of Schizonepeta tenuifolia are small, so the soil preparation must be careful, and at the same time, sufficient accumulated fertilizer should be applied, intensive cultivation should be carried out, and the base fertilizer should be sufficient and permeable, so that the soil is full of water, strong and flat, and the soil is free from pests and diseases.

(2) Breeding method:

Breeding with seeds, direct seeding or seedling transplantation. Generally, direct seeding in summer and transplanting in spring are adopted. Seeds are soaked in warm water and 800 times of new high-fat film for 4-8 hours and then mixed with fine sand (it can repel underground pests and diseases, isolate virus infection, not affect germination and imbibition functions, strengthen respiratory intensity and improve seed germination rate). Broadcasting can also be broadcast.

(3) Seedling raising and transplanting:

Removing the plastic film after emergence, strengthening seedling management, watering, fertilizing, weeding and pest control in time according to plant needs, rapid and free growth of plants, transplanting healthy seedlings and spraying new high-fat film on plant surfaces can effectively prevent ground water evaporation and seedling transpiration, isolate pests and diseases, shorten slow seedling stage, quickly adapt to new environment and grow healthily.

(4) Site management:

Rational fertilization, intertillage weeding and keeping the soil moist are enough. For strong stalks and strong ears, spraying Caiguozhuangdiling at seedling height of 10 cm can enhance the quality of pollen fertilization, promote the fruit development, have no deformation, no shells and grains, have good uniformity, improve quality and high yield.

(5) pest control:

The common diseases of Schizonepeta tenuifolia are root rot and stem blight, and the pests are cutworm and Spodoptera argentea. Spraying targeted drugs and new high-fat film can greatly improve the utilization rate of effective components of pesticides and fertilizers, and is not afraid of sun evaporation, and can adjust water absorption, prevent drought and rain.