Green Manuring Page: 3
This pamphlet is part of the collection entitled: USDA Farmers' Bulletins and was provided to UNT Digital Library by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
'GREEN MANURING.
By C. V. PIPER. Agrostologist in Charge, and A. J. Prraas, Agronomist, Clover
Investigations, Office of Forage-Crop Investigatdona.
CONTENTS.
Page. Page.
Definition of " green manuring ". 3 Cover crop - - - - -22
Effects of green manuring---------.... 4 Types of green-manure crops------...... 25
Nitrogen supply------------------ 6 Regional distribution of green-ma.
Composition of green-manure crops- 15 nure crops-- ----------------- 27
Should green crops be turned under, Crops to follow green manures.... 27
fed, or sold?-------------- 15 When to use green manures...------ 2
Effect of a green-manure crop on the When and how to turn under a
yield of a subsequent crop-----......-- 18 green-manure crop-__-------- . . 29
Moisture and a green-manure crop_ 20 The choice of a green-manure crop. 82
Effect of a green-manure crop on The principal leguminous green-
soil acidity-------------------- 21 manure crops----------------..................
Fertilizing the green-manure crop. 21 Nonleguminous green-manure crops. 43
DEFINITION OF "GREEN MANURING."
S"REEN MANURING " means the turning under of green plants
for the enrichment of the soil (see title-page). Taken broadly.
this would mean the turning under of weeds or the aftermath of a grass
or clover crop, as well as a crop especially grown for turning under.
Commonly, however, the term is used in a narrower sense and is
applied to the turning under of a green crop grown especially for
the purpose; or if not grown especially, at least used in that way
rather than put to some other possible use, as when the second crop
of clover is turned under instead of being cut for hay or for seed.
With perhaps minor modification, the same processes are involved
and the same results are attained whether the plant material is
turned under dry or green.
Cover crops frequently serve also as green-manure crops. How-
ever, when a cowpea cover crop is allowed to remain until spring and
the dead vines are then worked into the soil, this operation can
scarcely be spoken of as green manuring, but is more nearly like
turning under crop residues.
"Green manuring." therefore, as used in this bulletin means the
turning under of any crop, while green or soon after ripening, for
3
Upcoming Pages
Here’s what’s next.
Search Inside
This pamphlet can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Pamphlet.
Piper, Charles V. (Charles Vancouver), 1867-1926 & Pieters, A. J. Green Manuring, pamphlet, 1922; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc97246/m1/3/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.