Sentences with phrase «grain yield per»

Between 1950 and 1990, world grain yield per hectare climbed by 2.1 percent a year, ensuring rapid growth in the world grain harvest.

Since the mid-twentieth century, the world grain harvest has nearly quadrupled, with most of this growth coming from the tripling of the grain yield per acre.

This extraordinarily successful earlier endeavor tripled the world grain yield per acre between 1950 and 2011.

In China, where fertilizer manufacturing is government - subsidized, the average grain yield per acre grew 98 percent between 1977 and 2005, while nitrogen fertilizer use increased a dramatic 271 percent, according to government statistics.

Not exact matches

The new study suggests a decline of between 10 and 15 per cent in grain yields in Africa, tropical Latin America and much of India and Southeast Asia, as well as a substantial increase in famine.

One measure of yield, the dry weight of the rice grains, shot up from 16 grams per plant to 24 grams in the transgenic variety, a massive increase.

Also, don't forget that protein is an energy source, it yields four (4) calories per gram and it can be found in meats, dairy, legumes, grains and vegetables.

The young doctor is so thrilled about genetically engineering a strain of Basmati rice that yields 22 % more grains per acre that she spontaneously breaks into song on Fifth Avenue, right in front of the iconic Flatiron building.

If you rotate grain production through wisely you get better yields per acre grain, AND still producing meat from the re-purposed land now in grass, meaning you can even further reduce acreage in grain.

The average world grain yield in 1950 was 1.1 tons per hectare.

For example, a farmer in northern Iowa could plant an acre in corn that yields enough grain to produce roughly $ 1,000 worth of fuel - grade ethanol per year, or he could use that same acre to site a turbine producing $ 300,000 worth of electricity each year.

Yield is the mass of grain harvest per unit area harvested — in other words, the productivity of the crops on an area basis.

Indeed, the harvested area for «coarse grains» fell by 4 % as corn, with an average yield of 150 bushels per acre, replaced other feed grains such as sorghum (averaging 60 bushels per acre).

Plant growth and yield parameters such as leaf area, stem dry weight, panicle dry weight, cob dry weight and grain number per cob were all significantly increased under elevated CO2.

This practice yields a combined 5 tons of grain per hectare, helping to feed India's 1.2 billion people.

Per hectare, world grain yields rose about two percent annually since 1960.