Amaranth, also known as Qing Xiang Amaranth, Red Amaranth, Red Amaranth, Rice Amaranth, etc. It is a plant of Panicum in Amaranthaceae with tender stems and leaves. It is native to China and widely cultivated in the Yangtze River basin. Because of its strong stress resistance, easy growth, heat resistance, drought resistance, moisture resistance and less pests and diseases, it is one of the main green leafy vegetables popular in summer.

Extended data:

growing environment

1, temperature

Amaranth likes warm and heat-resistant, and warm and humid climate conditions are most conducive to the growth and development of amaranth. Seeds began to germinate at 10~ 12℃, and the optimum temperature was 22~24℃. When the temperature exceeds 35℃, germination and emergence are affected. Amaranth is not hardy. If you encounter a low temperature below 0℃, you will freeze to death. When the temperature is lower than 10℃, the plant grows slowly, and the optimum growth temperature is 23~27℃. When the temperature exceeds 35℃, the plant grows poorly, the fiber increases and the quality becomes worse.

2. Humidity

Amaranth does not have strict requirements on air humidity, which requires soil moisture, but it is not waterlogged. The root system of direct-seeded amaranth is deep in the soil layer and has certain drought resistance, but under the condition of sufficient soil moisture, the leaves are tender and the quality is better. Amaranth has poor waterlogging tolerance, and too much soil moisture or groundwater will affect its growth and even cause death. Many branches and trees growing in the wild are prone to lodging in heavy rain and windy weather.

3. Lighting equipment

Amaranth is a kind of vegetable with high temperature and short sunshine, which is easy to bolting and blossom under the condition of high temperature and short sunshine, and its edible value is reduced. Bolting and flowering of different varieties also occur early and late. For example, Guangzhou's high-toed leaves bolting earlier, while Nanjing's autumn young bolting and flowering later. Spring planting, suitable temperature, long sunshine, late bolting, tender quality and high yield; Sowing in summer and autumn is easier to bolt and blossom, and the product is thicker and older.

4. Land

Amaranth can be planted in fertile sandy loam or clay loam, regardless of soil. Amaranth is a fertilizer-loving crop, and the vegetable garden with deep soil layer, rich organic matter and fertile soil is usually the most suitable. Barren sandy land, cold slurry low wetland and poorly structured clay land are not suitable for planting amaranth. Amaranth has good adaptability to soil, and can grow in both acidic and alkaline soils, but the optimum pH value is 5.8~7.5.