The invention discloses a culturing method of resisting coldness and
overwintering for winter
green manure crops in Beijing-Tianjin-Hebei regions. The method comprises the steps that winter
green manure crops of the variety capable of resisting and tolerating coldness are selected; before September 25th, land is levelled, seeds are sowed in line, a mixed
potassium sulphate and
potassium carbonatefertilizer or a
potassium humate
fertilizer is applied to promote seed
germination and
seedling growing, a coldness resistance
fertilizer is applied, and after pressing, the seeds are appropriately watered to keep wet until seedlings emerge. In the
seedling period of the winter
green manure crops, a
straw fertilizer is applied to
resist coldness, keep warmth and provide
nutrition. The seedlings are watered by
frozen water, which is beneficial for
overwintering of the green
manure crops. After the winter green
manure crops turn green,
urea is rapidly dressed to promote early and rapid growing of the seedlings. The culturing method of resisting coldness and
overwintering for the winter green
manure crops is beneficial for safe overwintering of the winter green manure crops, coldness resistance, warmth keeping, and increasing of the overwintering rate, the reviving rate, the covering rate and the biological yield, therefore carbon is stored,
nitrogen is fixed, the
fertility of soil is improved, and dust raising is inhibited, using of a later
crop fertilizer is reduced, and a pure
organic fertilizer replaces a chemical fertilizer;
energy conservation and emission reduction are achieved, the environment is beautified, and the scientific planting method is provided for healthy
crop rotation and fallow planting of the Beijing-Tianjin-Hebei regions.