When will peanuts be sown in Northeast China?

As a common legume plant, peanuts are of many uses in daily life. They can be eaten directly, boiled soup, pressed oil, and can also be processed into non-staple food. When will peanuts be sown in Northeast China?

I. basic introduction of peanuts

Peanut is an annual herb of Leguminosae and Peanut, which originated from tropical and subtropical regions of South America. It was introduced into China in about the 16th century and developed at the end of the 19th century.

June-August is the flowering and fruiting stage of peanuts. Peanut seeds contain 40-50% fatty oil, 20-30% nitrogenous substances, 8-21% starch, 2-5% cellulose, 5-8% moisture, 2-4% ash, and a small amount of vitamins.

When will peanuts in Northeast China be sown?

Northeast peanut is suitable for sowing from late April to early May every year, and the suitable sowing temperature is about 15 ℃. The specific sowing time depends on the local temperature and weather.

Peanuts are widely distributed in China and are planted everywhere. The main producing areas are Shandong, eastern Liaoning, Guangdong Leizhou Peninsula, Huang Huai River area and coastal hilly and sandy areas along the southeast coast. Among them, Hebei, Henan, Jiangsu and Anhui provinces in the north are more. Shandong Peninsula, the hills of south-central Shandong, the lower reaches of the Luanhe River in eastern Hebei, the Yellow River flooding area in eastern Henan and the Huaibei area in Jiangsu and Anhui provinces are the key peanut producing areas in northern China.

What are the varieties of peanuts?

1. Ordinary type

Inflorescences alternate on lateral branches, with many branches and leaves Obovate. Dark green. The clumps are erect, tufted and even creeping. The fruit is larger in shape. Seeds long cylindrical. The growth period is longer.

2. Pearl bean type

The lateral branches are close to the main stem and can produce several inflorescence nodes continuously, with only a few twice branched. Leaf blade elliptic, light green or green. Plants erect or tufted. The fruit shape is smaller. The seeds are peach shaped. Weak dormancy.

3. Multi-grain type

Inflorescences can be borne on each node of lateral branches, rarely twice branched, and inflorescences on the main stem. The plant is tall and there are obvious anthocyanins on the stems and branches. Pods clavate, with 3-4 seed pods in the majority. Seed cylindrical.

4. Dragon type

The plant is creeping, flowering alternately, hairy, anthocyanin, pod with keel (back) and hook mouth, hockey-shaped. The reticulation of the fruit shell is deep, and the fruit needle is fragile and easy to break.