How much food is on one hectare of wheat?

Question

the yield. is there at least any average? I'm wondering how much does one person consume in a year?

Answer 1

892 pounds of wheat per hectare

Answer 2

No way of knowing without knowing the yield.

Answer 3

35 to 100 bushel per acre or for hectare 86.5 to 247 bushels.  There are different types of wheat.  Not only does bread come from wheat but there are by-products from processed wheat that have many different uses.

Answer 4

Of course you know that there is a lot of variations in yields of wheat, but an average yield of 5.4 tons/hectare would about right.  Figuring about .5 kg of wheat to make a loaf of bread, that is about 10,800 loaves of bread per ha of wheat. That is a lot of food.

Answer 5

First of all, it is impossible to give one exact number for wheat yield on a hectare of land.  There are so many factors that come into play -- climate, variety, soil type, rainfall, etc. -- that it is impossible to know for sure.

In order to give farmers a bit better 'guesstimate', Texas A&M came up with this set of equations for determining yield from an acre of wheat.  These equations can be used when the field is starting to mature:

(No. of heads per sq. ft. x 43560 x [No. of seed per head / No. of seeds

per lb.] ) / 60

or

No. of heads per sq. ft. x (No. of seed per head / No. of seeds per lb.)

x 726

So, to put this into some examples:

Assume 15 seeds per head and seed size of 16,000 seeds per lb.

Yield = ? heads per sq. ft.x [ (15 / 16,000) x 726]

Yield = ? heads per sq. ft. x 0.68

Assume 20 seeds per head and 16,000 seeds per lb.

Yield = ? heads per sq. ft. x [(20 / 16,000) x 726]

Yield = ? heads per sq. ft. x 0.91

Assume 40 seeds per head and 16,000 seeds per lb.

Yield = ? heads per sq. ft. x [(40 / 16,000) x 726]

Yield = ? heads per sq. ft. x 1.82

Assume 20 seed/head and 18,000 seed/lb.

Yield = ? heads per sq. ft. x [ (20 / 18,000) x 726]

Yield = ? heads per sq. ft. x 0.81

(For conversetion, 1 acre = 0.404685642 hectares)

For the sake of this example, let's use a typical wheat field in the Great Plains region of the U.S., where it is possible to easily harvest 6.8 tons per hectares.  

According to a recent study by the USDA, the average person eats about 150 of wheat a year.