Detailed Explanation of Peanut Sprout Cultivation Methods and Techniques

SummarySite and facilities: Peanut sprouts do not need light and can be grown in a greenhouse or an idle building, using bamboo, wood, angle steel and other materials to make multi-layer three-dimensional growing racks. Cultivation method: select plump, disease-free seeds, soak them, then sow them in seedling trays; the surface can be covered with black film, and the suitable temperature during germination is 22°C-25°C. Later management: during the germination period, water 2-3 times a day; during the growth period, water 4-5 times a day, and always keep them growing in a dark environment.

I. Site and Facilities

1. Site

The suitable production site needs to be chosen according to the production scale. For batch production of commercial vegetables, a relatively large site is needed. Generally, a greenhouse, plastic tunnel, idle building, etc. can be chosen. Growing peanut sprouts does not require light; during this period, they only need a suitable temperature to grow vigorously.

2. Growing racks

Multi-layer three-dimensional growing racks can be made from wood, bamboo, angle steel and other materials for cultivation. The rack length is 1.5m and the width is 0.6m, and the spacing between rack layers is 40-50cm. During this period, 4-6 layers of racks can be made according to the height of the production site space. A 1m-wide working aisle should be left between racks, and 4 wheels can be installed under the growing racks to make them easy to move.

3. Growing trays

Standard plastic seedling trays can be used as growing trays, and the suitable specification is 60cm×25cm×4-5cm.

II. Cultivation Methods

1. Seed selection

Select small-seeded white-skinned peanut seeds planted in the current year, and choose seeds of uniform size, plump grains, intact and undamaged, with a germination rate above 95% for soaking.

2. Seed soaking

Do not use iron containers when soaking the seeds. During this period, soak the selected seeds in clean water for about 12-24 hours so that the seeds fully absorb water and swell. Then remove the seeds, rinse them 2-3 times with clean water, and proceed to germination.

3. Germination

The soaked seeds can be sown in seedling trays, and then the seedling trays can be stacked up for stacked-tray germination. During germination, a layer of black plastic film can be covered on the surface of the seedling trays, which helps keep warmth and moisture. The suitable temperature during germination is 22°C-25°C.

4. Sowing

Before sowing, the containers need to be cleaned and disinfected. Then the already germinated seeds can be sown directly in the seedling trays. The sowing amount per seedling tray is about 500g. During this period, the seeds should be placed in a single layer and must not be piled up.

III. Later Cultivation Management

1. Temperature

The suitable temperature for peanut sprout growth is 18°C-25°C. Within the suitable temperature range, the growth cycle of peanut sprouts is short, and both quality and yield are high.

2. Watering

During the growth process of peanut sprouts, the water demand is relatively large. During the germination period, they need to be watered 2-3 times a day; during the growth period, they need to be watered 4-5 times a day. A spray bottle can be used for spraying so that all the peanut sprouts are thoroughly moistened, but there should not be standing water in the trays, otherwise it will cause seed rot.

3. Shading

During the growth process of peanut sprouts, the growing environment must always be kept dark. During this period, the seedling trays can be stacked together, which helps block light. A layer of black film can also be covered on the seedling trays to block light, promoting vigorous growth of the peanut sprouts. At the same time, a layer of wooden board or other objects can be placed on top of the peanut sprouts to give them a certain amount of pressure.

IV. Timely Harvest

When the cotyledons have not unfolded, the seed coat has not fallen off, the hypocotyl grows thick, white and tender, with a total length of 4-5cm, and no fibrous roots grow, and the entire sprout body is pure white without root rot, seed rot, or off-flavor, they can be harvested.