What are the agricultural activities of Guyu agricultural science

Gu YuIt is the last solar term of spring, at this time the warm spring sun is tepid, the size of the continuous spring rain is just right, the so-called "rain is born of a hundred grains", it is a good season for the growth of a variety of crops, and it is also a good time for agricultural production to plant and promote seedlings, and it is the busiest time for farmers, so let's understand what are the agricultural activities of Guyu.

The weather was mild before and after the valley rain, and the rain increased significantly, which had an obvious effect on the growth and development of cereal crops, which was conducive to the rejuvenation and jointing of overwintering crops and the sowing and emergence of spring-sown crops. In ancient times, the so-called "rain gave birth to a hundred grains" reflected the modern agricultural climatic significance of "valley rain".

The busiest time for agricultural production is before and after the rains. Most of the northern part of our country. It is an important season for crop sowing and seedling.

After the frost period in the North China Plain, millet and rice began to be sown. The winter wheat in the Yellow River Basin is in the jointing or heading stage, so it is necessary to pay close attention to the application of booting fertilizer, and the seedlings should be applied "weaning fertilizer" at the two-leaf stage. Cotton will be sown in the cotton planting area.

However, in North China and Northwest China, it is still the rainy season when "spring rain is as expensive as oil," and strengthening the defense against spring drought is still a very important task. Rice, tobacco and sweet potatoes in the Yangtze River basin are being sown; The wheat in southern Fujian and Guangxi, where the temperature rose earlier, has been ripe and harvested. At this time, the harvesting of spring tea has entered the peak season, and it is advisable to hurry up.

The precipitation in the south of the Yangtze River is obviously abundant, and the prevention of flooding and flooding in farmland must not be relaxed at this time.

In the rainy season, people in the areas south of the Yangtze River are busy plowing the fields, applying fertilizer, planting seedlings, and preparing to plant rice. Tea farmers are busy harvesting spring tea and making tea, which can be described as thousands of miles of green and fragrant; Silkworm farmers began to strengthen the breeding and management of spring silkworms; In addition, the rainy season is also the season for livestock breeding and fish breeding, and fishermen who make a living from fishing also leave early and return late to cast their nets to catch fish. Recommended:

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Wheat in the northern region is in the growing period at this time, and it is necessary to pay attention to drought and dampness, prevent rust, powdery mildew, wheat aphids and other diseases and pests, uproot smut plants, and at the same time do a good job in preventing "inverted spring cold" and hail. Corn farmers also began to plough the land, fertilize and sow seeds to prevent the encroachment of silkworms.

In some places, cotton has begun to be planted, and there is even a saying that "if you don't plant flowers in the valley rain, your heart is like a crab crawling". In some places, soybeans, mixed beans, potatoes, peanuts, sweet potatoes, eggplants, etc. are grown. The cash crop flue-cured tobacco has grown early seedlings, and farmers have begun to seize the time to do transplantation work.

While managing the fields, farmers are also strengthening the breeding of horses, cattle, pigs, and sheep, hoping that the six animals will prosper.

Gu Yu's farming activities are as follows:

1. Northeast China: cotton, corn, sorghum and soybean sowing. Flat land grain planting, rice drought direct seeding. Quasi-cavity sleepiness stimulates the preparation of summer hoe farm tools.

2. North China: "Valley rain grows fields". Generally, spring-sown crops must be sown at this time. Cotton nutrient bowl seedlings began to be transplanted. Spring yam planting. "Wheat is afraid of drought in the womb". Defend against spring drought.

3. Two northern regions: winter wheat loosening soil, soil cultivation, frost defense. Spring wheat irrigation, top dressing, tillage. Spring corn sowing. Millet ploughs, grinds, and applies base fertilizer. Millet cultivated land to protect moisture.

4. Southwest China: large-scale rice seedling raising. Speed up the progress of corn sowing and sweet potato seedlings. Cotton is sown in time. Sow sweet potatoes and potatoes are well managed in the seedbed and in the field.

5. Central China: Strengthen wheat field management. Wheat fields in the central region and along the river are prevented from moisture damage.

Control pests and diseases. Timely management of early and double cropping early rice, triple cropping early rice and medium rice seedlings. Spring-sown corn, cotton, high socks and other seedlings are checked, supplemented, thinned, fixed seedlings, and cultivated and hoeed.

Control of underground pests. Sweet potatoes were planted from south to north. Spring tea harvesting season.

Forestry nurseries control pests and diseases. Do a good job of spring matching of livestock.

6. South China: top dressing in early rice fields. Control of rice leaf rollers.

Medium rice sowing. Early corn chasing targets. Artificial pollination.

Hybrid seed production. Sweet potatoes continue to be raised and winter potatoes are harvested. Sugar cane.

Winter and spring planting cane tillage and top dressing. Pest control.

Meteorological changes:

The continuous spring rain is the most important feature of the valley rain solar term. The rainfall increases after the valley rain solar term, and the humidity in the air gradually increases, which is conducive to the growth of crops. Entering the valley rain solar term, precipitation in the middle and lower reaches of the Yangtze River and the south of the Yangtze River in China increases significantly, especially in South China, once the cold air meets the warm and humid air, it often forms a long period of rainy weather.

The Qinling-Huaihe River basin is basically the dividing line between the spring rain in the south of the Yangtze River and the spring drought in the north, and the spring rain decreases sharply from the vicinity of the Qinling-Huaihe River to the north. In the north, the valley rain is a symbol of "final frost", and there are fewer cases of cold air invading southward, but the cold air activities affecting the north have not stopped, and there will be early thunder in many places.