Skip to main content
Banner [Small]

Test out our new Bento Search

test area
x
# results
shortcut
Sections
HTML elements
Section Tiles
expand
Tile Cover
Mouse
Math Lab
Space
Tile Short Summary
Math Lab Rooms located in the Main Library in rooms 300X and 300Y
expand
Tile Cover
coffee
CC's Coffee House
Space
Tile Short Summary
Located at the first floor of the LSU Main Library.
expand
Tile Cover
People troubleshooting on a computer
Ask Us
Service
Tile Short Summary
Check our FAQs, submit a question using our form, or launch the chat widget to find help.

Website

207

Gear

44

FAQ

169

Database Listing

375
Slavery in America and the World: History, Culture & Law
This HeinOnline collection brings together a multitude of essential legal materials on slavery in the United States and the English-speaking world. This includes every statute passed by every colony and state on slavery, every federal statute dealing with slavery, and all reported state and federal cases on slavery. Our cases go into the 20th century, because long after slavery was ended, there were still court cases based on issues emanating from slavery. To give one example, as late as 1901 Chief Justice Oliver Wendell Holmes, Jr. of the Massachusetts Supreme Judicial Court had to decide if a man, both of whose parents had been slaves, could be the legitimate heir of his father, because under southern law, slaves could never be legally married. The library has hundreds of pamphlets and books written about slaverydefending it, attacking it or simply analyzing it. We have gathered every English-language legal commentary on slavery published before 1920, which includes many essays and articles in obscure, hard-to-find journals in the United States and elsewhere. We have provided more than a thousand pamphlets and books on slavery from the 19th century. We provide word searchable access to all Congressional debates from the Continental Congress to 1880. We have also included many modern histories of slavery. Within this library is a section containing all modern law review articles on the subject. This library will continue to grow, not only from new scholarship but also from historical material that we continue to locate and add to the collection.

Staff

101

Discovery

2062439
Soil cultivation methods rather than catch crop species enhance bacterial diversity in soil over a three-year experiment.
Growing catch crops can improve soil health by enhancing microbial diversity, but their impact may be constrained by how they are managed. This study examined the effects of different catch crop species and soil cultivation methods on bacterial and fungal diversity, and total soil microbial biomass. A 3-year field experiment on Luvi-haplic Chernozem included two catch crop species and five mixtures (further catch crop species) and three cultivation methods (ploughing, reduced tillage and no tillage), resulting in 21 treatments (7 catch crop species x 3 soil cultivations). Soil samples (0–15 cm depth) were collected annually in autumn and spring since 2021 to 2024. Microbial biomass was assessed using the chloroform fumigation extraction method, while fungal and bacterial diversity was analysed by amplifying and sequencing the ITS2 region of rDNA and the V4 region of the 16 S rRNA gene for fungi and bacteria, respectively, via Illumina paired-end amplicon sequencing. Soil cultivation methods affected bacterial diversity, with reduced tillage showing higher diversity and evenness than ploughing, though neither differed from no-till. However, no effect was observed on fungal diversity, including AM fungi, or microbial biomass. Catch crop species did not significantly impact microbial diversity or biomass. Neither cultivation method nor catch crop species influenced the ratios of functional trophic groups, such as pathogens, saprotrophs or symbionts. This study underscores the critical role of soil management practices—especially reduced tillage—in promoting soil health, primarily through the enhancement of bacterial diversity. [ABSTRACT FROM AUTHOR]