The Latest Technical Method Tutorial for Growing Amaranth in Greenhouses
Amaranth is a fairly common leafy vegetable in our daily lives, and it is grown over a very wide area in our country. Now, as growing techniques become more and more mature, amaranth is mainly grown in greenhouses. Greenhouse growing is very favorable for the growth of amaranth, so how should greenhouse amaranth be grown? Below, the editor brings you the growing techniques for greenhouse amaranth. Let's take a look!
1. Seed selection and land preparation
Before growing greenhouse amaranth, the first thing we must do well is to choose a good amaranth variety for planting. The amaranth variety should mainly be one with good palatability, high yield and strong stress resistance. After choosing the variety, carry out the land preparation work on the soil in the greenhouse. The soil should be deep-plowed to about 18 cm, and during land preparation sufficient base fertilizer should also be applied. The base fertilizer should mainly be decomposed farmyard manure, combined with an appropriate amount of diammonium phosphate. After the land preparation and fertilization work is done, then make the soil in the greenhouse into flat beds about 1 m wide.
2. Seed treatment
After choosing the variety, we also need to treat the amaranth seeds, and soak and pre-sprout them appropriately. First select plump seeds, then put them in cold water to soak for about one day. When soaking the seeds, it is best to rub and wash the seeds repeatedly. Then after soaking, take the seeds out and air-dry the moisture. Wrap them in moist gauze, then place them under a wet towel. Keep the temperature at about 20 degrees for pre-sprouting. Observe the seeds' white sprout emergence every day, and when about 40% of the seeds have sprouted white, they can be sown.
3. Sow at the right time
The sowing time for amaranth is also very important. Because the growth cycle of amaranth is relatively short, usually from sowing to harvest it takes only about 40 days. Both spring and autumn are suitable for growing amaranth. If it is open-field cultivation, then it can be sown from March to August. If it is greenhouse growing, then we can also sow about one month earlier. Before sowing, first water the soil thoroughly. Then mix the seeds with an appropriate amount of fine sand, and sow them evenly by broadcasting. After sowing, tread them down and press them firm, then cover with a layer of manure soil, and finally cover well with plastic film.
4. Strengthen management
If sufficient bottom water was applied before sowing, then there is no need to water again before the seeds emerge; generally they emerge in about one week. After the cotyledons of the seedlings emerge from the soil, remove the plastic film and do the work of cultivating and weeding. At the same time, when the seedlings grow about two true leaves, do it once more, combined with the work of topdressing and watering. The fertilizer should mainly be compound fertilizer, with the amount kept at about 15kg/mu. Then after half a month, apply topdressing again, also combined with watering. However, the field moisture should not be too much, and when it rains, pay attention to doing the drainage work well. Finally, after each harvest, water and fertilize once.
The above is a brief introduction to the growing techniques for greenhouse amaranth. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!