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Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. This practice reduces the ...
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 legume crop needed summer rain to succeed, and so the three-field system was less successful around the Mediterranean. Oats for horse food could also be planted in the spring, which, combined with the adoption of horse collars and horseshoes , led to the replacement of oxen by horses for many farming tasks, with an associated increase in ...
The Old Rotation experiment, which started in 1896, is the third-oldest ongoing field crop experiment in the United States and the oldest continuous cotton experiment in the world. It was the first experiment to show that a cotton/ legume crop rotation would allow soil to support a cotton crop indefinitely.
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 ...
The Dutch four-field rotation system was popularised by the British agriculturist Charles Townshend in the 18th century. The system (wheat, turnips, barley and clover) opened up a fodder crop and grazing crop allowing livestock to be bred year-round. The use of clover was especially important as the legume roots replenished soil nitrates. [169]
Improved multi-course crop-rotations began slowly to be introduced on mir arable in the late 19th century. The early experiments were mainly on the non-Black-earth lands, especially the Central-Industrial, West and North-West regions. Flax was the first `new' crop to be introduced into the rotation.
Many of these crops required sophisticated methods of irrigation, water management, and "agricultural technologies such as crop rotation, management of pests, and fertilizing crops by natural means." [ 19 ] Some scholars have questioned how much of the Arab (or Muslim) Agricultural Revolution was unique, and how much was a revival and expansion ...