Page 291 - NIIÊN GIÁM THỐNG KÊ TỈNH HƯNG YÊN 2022

- For annual crops:

Harvested production
Sown yield =
Sown area

Harvested production
Harvested yield =
Harvested area

- For perennial crops: Only productivity is calculated for areas for
products (also known as areas put into production) regardless of whether
there are products in that year or not.

Harvested production from productive area
Harvested yield =
Total productive area

Production of agricultural crops is the total volume of the main
product of a certain agricultural crop or group of agricultural crops obtained
in a cropping season or in a year of an agricultural production unit or a
region/ geographical area.

Production of each type of agricultural crops is determined by the form
of the product. For products such as rice, maize, green beans, soybeans, etc.
are recorded in the form of dry grain; sweet potatoes, potatoes, cassava are
recorded in form of fresh bulbs; tea in form of fresh buds, coffee in form of
dry kernel, rubber in form of dried latex, fruits in form of fresh fruits, etc.

Production of cereals include output of paddy, maize, and others grain
crops such as wheat, millet, kaoliang, etc. produced in a given period of time..

Production of paddy rice (also known as production of paddy in basket)
is the clean and dried paddy output of all crops in the year. The paddy output of
a year is valid for that year, excluding loss during harvest, transport, and
threshing, etc. (destroyed by mice, loss in fields, damage before storage).

Production of maize is the output of clean and dried maize harvested
during the year.

Production of starchy root crops refers to the output of cassava,
sweet potatoes, winged yam, taro, edible canna, and other starchy root crops
produced in a given period.

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