Where is the largest area under rice cultivation?

Heilongjiang has the largest rice cultivation area, which is due to the existence of two alluvial plains, the Sanjiang Plain and the Songnen Plain. At the same time, it is also the advantage of Heilongjiang's relatively vast land. For example, the rice in the city of Tokyo (now known as Xiangshui rice) in Heilongjiang Province is grown in the Changbai Mountains.

the northern end; Wuchang rice.

It is the Zhangguangcai Ridge and the Songhua River that grow in the Changbai Mountains.

river basins; Yanbian rice from Jilin Province, Tonghua Xijiang rice (real tribute rice).

<> the rice planting area of Heilongjiang Province has exceeded the total rice planting area of Jilin Province and Liaoning Province, and has doubled.

First, it is well-deserved and unshakable. In the three northeastern provinces,Songhua River, Heilongjiang River, Ussuri River, the confluence of the three river plains, is the place where rice is planted the most, that is,Northeast Rice,The core production area, here is very suitable for the growth of rice, the soil here is fertile, the taste of Panjin rice is particularly fragrant, and the color of Panjin rice has a little green feeling, cooking porridge and making rice, the rice grains are distinct, not to mention the special soft and glutinous fragrance. Wuchang rice grains are uniform, the color is bright, mellow and long, the aroma is overflowing, it is light and slightly sweet after steaming, the cotton is soft and slightly sticky, the aroma is refreshing, the surface of the rice is oily and gorgeous, the leftovers do not come back to life, the quality is high, it is a variety that the local people like very much.

The rice in the northeast is mainly japonica rice, and the largest planting area and yield is in Heilongjiang Province. In 2017, 2018 and 2019, the output was 10,000 tons, 10,000 tons and 26.64 million tons, respectively. Northeast.

The thickest black soil layer is in Harbin, Heilongjiang Province.

The five permanent members of the city are subordinate to a county-level city in Harbin.

The land area is not large, but the black soil layer is on average 2 meters thick, making it one of the three largest black soil in the world.

Normally, the yield of high-yielding paddy fields is usually 500 600 kg per mu, and the yield of real estate paddy fields is 300 500 kg per mu. The average yield of rice grown at home is about 1,000 catties.

Rice is very widely distributed in the world, and it is cultivated on all continents of the world, Asia, Europe, America, Africa and Oceania. About 90 percent of the world's rice area and total rice production are planted in Hunan Province. Specifically, Hunan and Guangdong provinces have a planting area of more than 4 million hectares, and Sichuan and Jiangxi provinces have more than 3.3 million hectares

Heilongjiang The Great Plains area, the largest area of rice, such as the Jin Dynasty Shangjing Huining Mansion that place, is very flat and broad, moved the capital to Yanjing, there are still many people who are worried about their hometown, the hometown is much more fertile than the stone bald mountain in Yanjing, so even the ancestral tomb was moved to Yanjing.

The South, of course. Because the climate in the south is warm, it is especially suitable for the growth of rice.

The three northeastern provinces, also known as the three eastern provinces, are Liaoning Province, Jilin Province, and Heilongjiang Province. The three provinces in Northeast China have a vast territory and fertile land, which is an important economic grain production base in our country, and these places produce famous rice such as: Wuchang rice, Xiangshui rice, Panjin rice, Meihekou rice and so on!

The main rice planting areas are in North China, Northeast China, and Southwest China. Because these places have a relatively warm climate, longer sunlight hours, and abundant water quality, they are very conducive to the growth of rice, which can provide favorable conditions for rice growth and ensure sufficient yield and high quality.

The main planting areas of rice are distributed in Beijing, Shanxi, Shandong, Shaanxi and other places; Because the temperature in these areas is suitable for the growth of rice, photosynthesis is relatively strong, the soil is suitable for rice cultivation, and the climate and environment are suitable.

The main rice cultivation areas are in Xinjiang, Heilongjiang, Fujian, Hainan, Guangdong, and Guangxi. The environment in these places is very suitable for growing rice. There is also plenty of moisture.

Good afternoon, dear<>

According to the National Bureau of Statistics, the rice planting area in China in 2022 will be 30,000 mu. Compared with 2021, there is an increase, which is related to China's policies such as stepping up efforts to promote the rural industrial revolution, increasing support for agriculture, rural areas, and farmers, and strengthening rural land circulation. At present, China's rice planting area and output are still in the forefront of the world.

In recent years, China has explored the green and sustainable development model of agriculture, built a safety supervision system for agricultural products, actively promoted the development of Qinqiao, a new agricultural business entity, vigorously developed precision agriculture and smart agriculture, accelerated the development of rural e-commerce and Internet + agriculture, and improved the modernization level and comprehensive benefits of rice planting. At the same time, strengthening the structural reform of the agricultural supply side, optimizing the layout of the agricultural structure, and promoting the transformation and upgrading of agriculture are also important measures to stabilize the rice planting area and increase the yield in China. <>

The world's three major rice-producing regions are mainly Asia, Africa and the Americas.

1. Germination treatment.

When planting rice, it is necessary to promote germination, first wash the rice seeds with full grains and free of diseases and pests in clean water three times, and then put them into a gauze bag. Tie the mesh bag with a string and hang it in the well water, and wait for the seeds to be exposed before taking them out.

2. Sow seeds and raise seedlings.

When raising rice seedlings, it is necessary to choose the soil with rich nutrients and deep soil layer as the seedling soil, and then sow the white rice seeds directly in the seedling soil. If the ambient temperature is too low, build an arched greenhouse above the seedling soil after sowing to allow the seeds to grow as soon as possible.

3. Transplanting and colonization.

After the rice seedlings grow to a height of 30 centimeters, they can be dug out with soil, washed in the soil at the roots of the roots in clean water, and then inserted into the rice field with sunny ventilation and good water retention. During the process of transplanting, it is best to control the distance between the plants to five centimeters, and ensure that there are two seedlings in each hole.

The growth process of rice

Before planting rice, the soil of the paddy field must be turned over to make it soft, and this process is divided into three periods: extensive tillage, fine tillage and capping. In the past, animal power and ploughing tools were used, mainly water buffaloes to prepare the land, but now more machines are used to prepare the land.

Farmers first cultivate seedlings in a field, which is often called a seedling field, and after sowing the rice seeds, the farmers most likely sprinkle a layer of rice husk ash on the soil. In modern times, seedling boxes are mostly used by special seedling centers to make rice seedlings grow, and good rice seedlings are the key to the success of rice farming. When the seedlings are about eight centimeters tall, they can be transplanted.

The area of paddy fields in China, the data of 2022 and 2011 have not yet been released.

In 2020 it was 30,076 thousand hectares.

The crop is cultivated by technology.

The crop likes high temperature, humidity and short daylight, and has low requirements for soil.

The south of China is the main producing area, and the northern provinces are cultivated.

1. Seed treatment.

Seed treatment is a prerequisite in planting technology, generally the selected seeds are cleaned before planting, and then the potassium permanganate solution is emptied.

Medium sterilization, and then put it in a gauze bag for germination treatment, keep the temperature at about 30 to germinate quickly.

2. Land preparation treatment.

In order to ensure the fertility of the cultivation medium, it is generally necessary to combine the cultivation and weeding treatment when preparing the land, and then add an appropriate amount of organic fertilizer and superphosphate to the soil.

Potassium sulfate and other fertilizers, mix and stir evenly, and then add a small amount of dixone for sterilization.

3. Transplanting treatment.

The germinated seedlings are transplanted into the soil, do not cultivate too densely, keep the plant row spacing at about 10 cm, hold the seedling roots with your hands, and insert the root system into the soil.

4. Post-planting treatment.

If there is a lack of seedlings after planting, it is necessary to replenish the seedlings in time to ensure the original planting density, and frequent irrigation treatment is required during the growth period.

Fertilizer is sufficient. 5. Weeding treatment.

It is best to carry out frequent weeding treatment after planting, and herbicide can be applied to it a week after planting.

Mainly oxatrione, when the growth is good, benzylthioyl herbicide can be added to the fertilizer mixed and sprayed to avoid weeds affecting the normal growth of plants.

The yield per mu of rice is not fixed, and will be affected by the season, variety, region, management and other factors, such as the yield per mu of low-yield fields is about 600 to 700 catties, and the yield per mu of high-yield fields is about 1000 to 1200 catties.

The fruit of rice is rice, and the rice is called brown rice after removing the glume husk, and the brown rice can be obtained by grinding off the rice bran layer. Nearly half of the world's population relies on rice as a staple food. In addition to being edible, rice can also be used as industrial raw materials for brewing and sugar making, and rice husks and rice stalks can be used as livestock feed.

The main rice producing areas in China are mainly the Yangtze River Basin, the Pearl River Basin and Northeast China. Rice is a direct cash crop, rice is the staple food of Chinese residents, the domestic rice planting area is 100 million mu of conventional rice, and the planting area of hybrid rice is 200 million mu.

Liangyou 0293, the average yield of five hundred mu pieces reached 850 kg mu. On large-scale planting, it can reach about 700 kg. There is also C Liangyou 396, which is currently the highest-yielding two-line super rice variety.