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The Old Chinese character for fertilisers is the same as the word as fecal matter. Thus, we cannot assume that the fertilisers mentioned in Spring and Autumn texts were actually excrement. It is known that at least in some cases, they were referring to (presumably compost) weed or grass. The earliest explicit reference of using human waste as fertilisers ...


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In Carolingian times, the yield of grain on average soil was 2:1. For each seed planted, you harvested two. Starting with the eleventh century, an upward trend brought agricultural productivity to an average of 4:1. This meant 8-12 bushels (200-300 kg) of grain per acre. Let's just conclude that in Carolingian times, in Western Europe, an acre of land gave ...


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Although the wikipedia article notes that a major cause of the rebellion was an agrarian crisis, note that famine is often caused due to factors other than agricultural production alone. Often bad distribution, heavy taxes and low market prices for agricultural produce cause famine. While it may look like agricultural technology was in its infancy then, ...


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It highly depends on what you grew on it, where, and how many tools you had at your disposal. Generally vegetables had higher yields, but were harder to harvest. So the reason why grain became a staple food is that there was just enough place for it to be grown. Legumes were also a staple food; they provided more calories per hectare besides baring much ...



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