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The “Crop Rotation Practice Standard” for the National Organic Program under the U.S. Code of Federal Regulations, section §205.205, states that Farmers are required to implement a crop rotation that maintains or builds soil organic matter, works to control pests, manages and conserves nutrients, and protects against erosion.
The Norfolk four-course system is a method of agriculture that involves crop rotation. Unlike earlier methods such as the three-field system, the Norfolk system is marked by an absence of a fallow year. Instead, four different crops are grown in each year of a four-year cycle: wheat, turnips, barley, and clover or ryegrass. [1]
The Agricultural Revolution was part of a long process of improvement, but sound advice on farming began to appear in England in the mid-17th century, from writers such as Samuel Hartlib, Walter Blith and others, [68] and the overall agricultural productivity of Britain started to grow significantly only in the 18th century. It is estimated ...
Crop rotation is a tried-and-true practice that has been used not just in home vegetable gardens but in full-scale farming operations since the 17th century. It consists of moving a family of ...
With more crops available to sell and agriculture dominating the economy at the time, the three-field system created a significant surplus and increased economic prosperity. [3] The three-field system needed more plowing of land and its introduction coincided with the adoption of the moldboard plow. These parallel developments complemented each ...
He promoted the adoption of the Norfolk four-course system, involving the rotation of turnips, barley, clover, and wheat crops. He was an enthusiastic advocate of growing turnips as a field crop for livestock feed. [8] As a result of his promotion of turnip-growing and his agricultural experiments at Raynham, he became known as "Turnip Townshend".
Crop rotation has been employed for thousands of years and has been widely found to increase yield and prevent harmful changes to the soil environment that limit productivity in the long term. [3] Although the specific mechanisms regulating that effect are not fully understood, [ 4 ] they are thought to be related to differential effects on ...
Although debatable, many agricultural historians also believe that the introduction of convertible husbandry was brought about with the introduction of the turnip. They argue that "the lowly turnip made possible a change in crop rotation which did not require much capital, but which brought about a tremendous rise in agricultural productivity."