Though the discussion can be made for all crops, I'm restricting only to wheat.
Globally, two types of wheat are under cultivation: Spring and Winter. The explicit difference lies in the crop duration as well as in productivity. For instance , New Zealand often records the highest wheat productivity (app. 10 tonnes per hectare national average) wherein winter wheat of higher duration (app. 275 days) is widely cultivated. On the contrary, in India spring wheat is widely cultivated registering a national average of 3.5 tonnes per hectare with the crop duration hovering around 150 days.
Winter wheat inherently produces higher yield in comparison to spring wheat and hence, comparing between countries on per day productivity would be more meaningful. I will appreciate if you share the average duration of wheat in your country along with the highest yielding wheat variety in terms of potential yield level for arriving inter-country comparison.
For instance the figures for India is given below:
Spring wheat (app.150 days duration): 3.5 tonnes/ha (national average)
DBW 187: 9.66 tonnes/ha (potential yield)
NON-MEANINGFUL COMPARISON. If New Zealand could yield 10 MT per hectare per season and India could yield 3.5 MT per hectare per season, it only shows that India is growing the wrong crop and such dismal yield or productivity should not be used for comparison studies (wrong country & wrong crop). If you take the basmati rice yield from India and compare that to New Zealand (if it grows there), you might see that New Zealand may produce a dismal yield. Such comparison is equally illogical.
PER DAY PRODUCTIVITY is not a supportable way for measuring agricultural productivity. Agricultural products are grown by season. Per season per land area is an appropriate unit of measurement.
Across the country there is huge or say non comparable agriclimatic condition, Soil , biodiversity even human being and also the way of cultivation differ. Therefore as per my opinion the comprison under such a huge different kind of situation is not a great deal but yes we from comprison we generate a database of productivity of a particular crop across the country.
- Badges
- Science topic
- Similar topics
- Chemistry
- Sulfites
- Inorganic Chemistry
- Inorganic Chemicals
- Salts