Results 81 to 90 of about 3,634,913 (194)

A preliminary palynological and magnetic susceptibility record from the southern Sanjiang Plain, NE China: implications for orbital-scale monsoon variability since the Middle Pleistocene

Frontiers in Earth Science
The Sanjiang Plain, characterized by thick Quaternary sedimentary sequences and limited anthropogenic disturbance, represents an ideal archive for regional paleoenvironmental reconstruction.
Yandong Pei, Yandong Pei, Yandong Pei, Hongwen Zhang, Hongwen Zhang, Hongwen Zhang, Fanpeng Kong, Fanpeng Kong, Fanpeng Kong, Xiangxi Lv, Xiangxi Lv, Xiangxi Lv, Jian Zhao, Jian Zhao, Jian Zhao   +14 more
doaj   +1 more source

Effects of Conservation Tillage and Nitrogen Inhibitors on Yield and N₂O Emissions for Spring Maize in Northeast China

Agronomy
Conservation tillage can improve soil health and carbon sequestration and is helpful for sustainable agricultural development. However, its effect on crop yields and nitrous oxide (N2O) emissions is still controversial.
Fanchao Meng, Guozhong Feng, Lingchun Zhang, Yin Wang, Qiang Gao, Kelin Hu, Shaojie Wang   +6 more
doaj   +1 more source

Optimizing the Cow Manure-Straw Ratio to Promote Organic Matter Humification: Insights from Three-Dimensional Fluorescence Spectroscopy

Plants
Straw and cattle manure are common agricultural wastes, and their composting plays a critical role in regional nutrient cycling and organic carbon management.
Liangshi Hao, Yan Li, Shuang Wang, Yarun Wang, Yu Hu, Yangyang Xia, Zhixin Qi, Hongsheng Gao, Dan Wei, Wei Li   +9 more
doaj   +1 more source

[United States Soil Survey Report]

, 1958
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads.
Texas Agricultural Experiment Station, United States. Soil Conservation Service.   +1 more
core  

[United States Soil Survey Report]

, 1970
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads. Includes legend and symbols.
Texas Agricultural Experiment Station, United States. Soil Conservation Service.   +1 more
core  

Black Soils of India [PDF]

Nature, 1963
openaire   +1 more source

[United States Soil Survey Report]

, 2001
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads. Includes legend and symbols.
Texas Agricultural Experiment Station, United States. Soil Conservation Service.   +1 more
core   +1 more source

[United States Soil Survey Report]

, 2004
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads. Includes legend and symbols.
Texas Agricultural Experiment Station, United States. Soil Conservation Service.   +1 more
core   +1 more source

Terry M. Black to the Jacksons

, 1966
Terry M. Black, writing from Camp Pendleton, California, to his parents, the Jacksons, in Van Buren, Arkansas, discusses his feelings about his recent leave in Van Buren, the current plans for his unit's deployment, and some of the training and duty he ...
Black, Terry Moore, 1946-2022;
core  

[United States Soil Survey Report]

, 2000
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads.
Texas Agricultural Experiment Station, United States. Soil Conservation Service.   +1 more
core