lec 31 - History of Horticulture: Lecture 31 Lecture 31...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
History of Horticulture: Lecture 31 1 Lecture 31 Lecture 31 Agricultural Scientific Revolution: Chemical Crop Nutrition Mother earth when fructified by rain gives birth to crops for the nourishment of man and beast But that which come from earth must return to earth and that which came from air to air Death however, does not destroy matter but only breaks up the union of its elements which are then recombined into other forms Antiquity Democritus of Abdera (ca 460–360 BCE) Four elements: earth, water, fire, and air Aristotle assumed plants assimilated organic matter from the roots based on the fact that organic matter, particularly manure and plant residues, benefited plant growth Beginning of Humus Theory of plant nutrition Aristotle (384–322 BCE)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
History of Horticulture: Lecture 31 2 They (green manure) are broadcast in the fifth or sixth month and plowed under in the seventh or eighth month…Their fertilizing value is as good as silkworm excrement and well-rotted farm manure Pliny (23–79 CE) It is universally agreed by all writers that there is nothing more beneficial than to turn up a crop of lupines, before they have podded, either with the plough or the fork, or else to cut them and bury them in heaps at the roots of trees and vines Tsi, Chinese writer (1100 BCE) Proposed concept that manuring was to replace substances lost by crop removal Manure is carried to the field for the purpose of restoring to the latter a part of what had been removed… Proceeding thus you will restore to the soil the same substances that have been removed by previous crops and which following crops will regain to their advantage Bernard Palissy (1510–1589) Infamous experiment with willow Attributed plant growth to water!!! Planted a willow in soil After 5 years, willow gained 169 pounds and soil lost 2 ounces John Woodward (1665–1728) Demonstrated that spearmint grew better in water containing soil that rainwater alone Jan Baptista van Helmont (1577–1644)
Background image of page 2
History of Horticulture: Lecture 31 3 Johan Glauber (1604–1655) Gabriel Plattes 1600–1655) Analyzed salts such as woodashes, limestone, and
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

lec 31 - History of Horticulture: Lecture 31 Lecture 31...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online