Crop rotation British Agricultural Revolution. The rotation between arable and ley is sometimes called ley farming. George Washington Carver (1860s–1943) studied crop-rotation methods in the United States, teaching southern farmers to rotate soil-depleting crops like cotton with soil-enriching crops like peanuts and peas. In the Green Revolution of the mid-20th century the traditional practice of crop rotation gave way in some parts of the world to the practice of supplementing the chemical inputs to the soil through topdressing with fertilizers, adding (for example) ammonium nitrate or urea and restoring soil pH with lime. Such practices aimed to increase yields, to prepare soil
Crop tolerance to seawater obtained half the normal yield per acre, i.e. half of the average yield per acre at national level. The experiment was conducted at Bodega Bay, North of San Francisco, in a laboratory on the Pacific Ocean. A team led by Liu Shiping, a professor of agriculture at Yangzhou University, created rice varieties that can be grown in salt water, and achieve yields of 6,5 to 9,3 tons per hectare. Crop tolerance to seawater Crop tolerance to seawater is the ability of an agricultural crop to withstand the high salinity induced by irrigation with seawater, or a mixture of fresh water