The 24 solar terms tell us when to do what farm work.
Rain: At that time, wheat gradually entered the jointing and booting stage, fertilizing seedlings, clearing ditches and draining water, and strengthening rape field management. Stunned: the management of fertilizer and water should be strengthened in wheat fields, and the soil moisture should be divided into three types: aqua regia, black moisture, yellow moisture, wet dry soil and dry soil, for seedling raising, irrigation and water saving. Application of coated fertilizer in rape. Early rice is ready to raise seedlings and plant trees.
Vernal equinox: Early rice has been soaked and germinated from south to north on both sides of the Yangtze River, and seedlings are raised with plastic film (to prevent cold wave) and planted with cold tail and warm head. Continue to manage wheat and rape, do a good job in afforestation, improve and protect the ecological environment, and adjust the climate.
Qingming: The north and south of the Yangtze River have entered the busy farming season. Early and middle rice are sown one after another, wheat is jointing, rape is flowering, and field management cannot be relaxed. Sow corn and peanuts. Grain Rain: At this time, it is the busy season for rural areas to prepare for wheat cutting, rice transplanting and cotton planting.
Long summer: Spring flower crops should be harvested in time when they enter the yellow maturity stage. After the long summer, Zhejiang will enter the rainy season, and the rainy season is about to begin. It is necessary to prepare for flood control. Xiaoman: The summer crops in the north and south of the great river are maturing one after another, and the harvest is sunny. Late-stage management of wheat fields should be strengthened in northern China. Spring corn, sorghum, intertillage, weeding and ridging are particularly important. Ear seed: we should pay close attention to the cultivation and management of early rice, timely cultivate and bake fields to improve ground temperature, and pay attention to pest control. Sow late rice at the right time.
Summer solstice: In summer, we should seize the opportunity to strengthen field management, remove weeds in time and control pests and diseases. Hot summer: The hot summer is facing the turning point of Meihong drought. While doing a good job in flood control, all localities should grasp the weather forecast information in time, strengthen water storage and drought prevention, and strive to achieve both flood control and drought relief.
Great summer heat: a warm-loving crop, its growth rate has reached its peak. It is necessary to strengthen the management of water and fertilizer in the field. Late rice should be transplanted before beginning of autumn.
Beginning of autumn: Late rice should be cultivated and weeded, and irrigated in case of drought. Grasp the autumn sowing. Cotton topping promotes the development of autumn peach (cotton). Summer: At this time, late rice is in a critical period of growth.
Bailu: cotton is picked in batches, and the field management of autumn corn and other crops is strengthened in the later stage. Autumnal Equinox: Continue to do a good job in field management of late rice. Cotton seed selection and flower picking. Winter wheat and rape should be prepared before sowing. Cold dew: Cold dew solar terms are the suitable period for direct seeding rape in the Yangtze River basin, and winter wheat is planted in Jiangbei area.
First frost: We should strengthen the cultivation and management of rape and garden vegetables. The accumulation of forest fire prevention funds should also be implemented as soon as possible. Beginning of winter: Do a good job in harvesting and drying late rice. Do a good job of sweeping up the winter wheat sowing.
Xiaoxue: Do a good job in keeping livestock warm and wintering.
Heavy snow: It is necessary to strengthen the field management of spring flowers such as winter wheat and rape.
Winter solstice: strengthen the field management of spring flowers such as winter wheat and rape. Great cold: main farming activities: storing and making fertilizer, repairing water conservancy in winter, starting greening and planting trees, cleaning and transforming fish ponds.
Twenty-four solar terms originated in the Yellow River Basin. As early as the Spring and Autumn Period, four solar terms were set, namely, mid-spring, mid-summer, mid-autumn and mid-winter. After continuous improvement and perfection, by the Qin and Han Dynasties, the 24 solar terms had been completely established. Including beginning of spring, Rain, Sting, Vernal Equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, Dashu, beginning of autumn, Xiabailu, Autumn Equinox, Cold Dew, First Frost, beginning of winter, Light Snow, Heavy Snow, Winter Solstice, Slight Cold and Severe Cold.
The 24 solar terms are divided according to the position of the sun on the ecliptic. Depending on the sun from the vernal equinox, every advance 15 degrees is a solar term; After a week's operation, I returned to the vernal equinox, which is a tropical year with 360 degrees, so it is divided into 24 solar terms.