How to measure the seeding area of summer grain?The investigator holds PAD on the spot to register each plot data

Qilu.com · Lightning News August 2nd. This afternoon, the Shandong Provincial Government News Office held a press conference to introduce the production of food this year and answered questions from reporters.

Grain production is related to the formulation of national security and policy, and it is particularly important to accurately quit grain production statistics. At the press conference, Zhang Yanli, the president of the National Bureau of Statistics Shandong Investigation Corps, introduced the work in the calculation of summer grain.

According to Zhang Yanli, the Shandong Summer Grain Production Statistics Survey was organized by the State Statistics Bureau of the Shandong Investigation Corps in accordance with the national statistical survey system. The survey content includes the sowing area and output of summer grain. We strictly perform independent investigations, independent reports, and independent supervision of statutory powers, and work in accordance with laws and regulations in various links, and scientific norms. The sowing area of ​​summer grain is surveyed by the ground sampling. During the sowing period of summer grain, we selected 2098 sample villages in 126 counties (cities, districts) in the province, and conducted field investigations in more than 230,000 survey plots. The investigator holds the PAD electronic survey tool and finds the corresponding plot according to the electronic map information. The variety and area of ​​the planting crops on each plot are registered on the spot. Finally, according to the data of the survey land, scientific calculations are made, and the total area of ​​summer grain sowing in the province is obtained.

The area output of summer grain units is mainly obtained through "actual cutting and actual measurement", including three steps: Taya estimated, drawing actual measured plots and actual cutting measurements. Before the mature harvest of summer grains, we went to the field to estimate the number of ears, ears, and overall growth of wheat acres, obtained the estimated production data of the survey plot, and selected the measured plot accordingly. During the harvest of the wheat, three 10 square feet wheat samples were randomly cut at each measured plot. Establish data from the province's summer grain. The sowing area and the unit area of ​​the unit are multiplied to the total output of summer grain in the province.

Zhang Yanli said that in recent years, we are committed to continuously reforming and improving the methods and means of statistical surveys of summer grain production. The survey land survey of the ground sampling survey must be re -elected every few years. This year we are carrying out the work rotation of the sample. We fully apply space information technology such as remote sensing to comprehensively improve the level of summer grain production statistics. Wheat space distribution measurement and growth monitoring for 7 consecutive years, and conducted field surveys in some cities and counties. Actively explore new methods of remote sensing estimation, and use remote sensing images to carry out research on wheat mass production. The comprehensive use of high -tech and high -tech equipment has improved the modernization and scientific level of agricultural statistics, and effectively improved the quality of summer grain production data.

According to Zhang Yanli, in response to the complex and severe production situation of food this year, we give full play to the rapid, flexible and efficient "light cavalry" advantages of the national investigation team, track and monitor the entire process of summer grain production, and dispatch the growth of seedlings every half month, surrounding spring farming and plowing farming. , Field production management, epidemic and extreme weather effects, changes in agricultural capital price, etc. have carried out more than 20 special investigations, comprehensively grasped the implementation of various policies to support agricultural production, and provided the rapidly providing party committees and governments at all levels and relevant departments at all levels. Survey information to ensure that the production data of summer grain production is true and credible, effectively and effectively play the role of statistical supervision functions, and provide solid statistical guarantee for maintaining national food security.

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