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Liebig's Law of the
Minimum was the formulation of an idea that yield of a crop was determined primarily by the amounts of plant food that were present in minimum quantities. His idea was discussed later as the Limiting Factor by BLACKMAN and again by MITSCHERLICH as the Law of Physiological
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Seed multiplication ratio is variable, subject to several factors. Agricultural improvements can raise the ratio, and revisions were recommended in 2018 by the Indian
Council of Agricultural Research.
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Preckel, Paul V.; Hertel, Thomas W.; Arndt, Channing; Nin, Alejandro (2003-11-01). "Bridging the Gap between
Partial and Total Factor Productivity Measures Using Directional Distance Functions".
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Long-term cereal yields in the United
Kingdom were some 500 kg/ha in Medieval times, jumping to 2000 kg/ha in the Industrial Revolution, and jumping again to 8000 kg/ha in the
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as the minimum required to sustain human life. One of the three seeds must be set aside for the next planting season, the remaining two either consumed by the grower, or for
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Relations. The latter was expressed as a logarithmic function between yield and the quantity of plant food constituents, which is virtually the Law of
Diminishing Returns.
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use of the farmland, the higher the productivity and profitability of a farm; this increases the well-being of farming families. Surplus crops beyond the needs of
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The seed multiplication ratio is the ratio between the investment in seed versus the yield. For example, if three grains are
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Bornewasser, J.A. (1977): Winkler Prins
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studied crop yields in 1909 and articulated a "law of physiological relations". It was compared to the
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can be sold or bartered. The more grain or fodder a farmer can produce, the more draft animals such as
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Mitscherlich, E. A. (1909.) "Das Gesetz des
Minimums und das Gesetz des abnehmenden Bodenertrags",
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for each grain seeded, the resulting multiplication ratio is 1:3, which is considered by some
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feed. In parts of Europe the seed ratio during the 9th century was merely 1:2.5, in the
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was created from a revision of this article dated 27 October 2018
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The units by which the yield of a crop is usually measured today are
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could be supported and harnessed for labour and production of
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Amount of farm product produced per unit area for a given time
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418:"Mitscherlich's Law: Sum of Two Exponential Processes"
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434:Ritchie, Hannah; Rosado, Pablo; Roser, Max (2022).
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155:it improved to 1:14 with the introduction of the
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46:is another way of calculating yields.
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404:A Short History of the Plant Sciences
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233:Agricultural productivity
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163:around the 14th century.
135:Seed multiplication ratio
121:agricultural productivity
301:10.1111/1467-8276.00498
63:subsistence agriculture
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456:Listen to this article
402:Howard S. Reed (1942)
329:Pipes, Richard (1974)
175:Alexander Mitscherlich
119:Yields are related to
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358:Krishi Bhavan (2018)
508:More spoken articles
129:return on investment
114:ecological footprint
238:Grain yield monitor
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191:Frederick Blackman
157:three-field system
18:Agricultural yield
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441:Our World in Data
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518:Categories
504:Audio help
495:2018-10-27
447:2024-04-20
254:References
125:fertilizer
51:fertilizer
44:seed ratio
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309:0002-9092
267:Max Roser
149:livestock
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