Results 21 to 30 of about 11,656,595 (311)

TOTAL NITROGEN DETERMINATION BY THE KOBER METHOD. [PDF]

Journal of the American Chemical Society, 1909
n ...
Gill, F. W., Grindley, H. S.
openaire   +1 more source

Organic carbon and nitrogen content in Estonian erosion-affected soils

Agraarteadus, 2020
The work is dedicated to the characterization of erosion-affected soils' (EAS) humus status (HS) in pedo-ecological conditions of South-Eastern Estonia.
Raimo Kõlli, Karin Kauer, Tõnu Tõnutare   +2 more
doaj   +1 more source

The influence of inherent soil factors and agricultural management on soil organic matter

Ecosphere, 2023
The accumulation of soil organic matter (SOM) is vital to the agronomic and environmental functioning of agroecosystems, yet the relative influence of inherent soil properties and agricultural management practices on SOM dynamics are not often addressed ...
Gregory S. Richardson, Matthew D. Ruark, Timothy Radatz, Amber Radatz, Eric Cooley, Erin M. Silva, Abigail J. Augarten, Jun Zhu, Chelsea H. Zegler   +8 more
doaj   +1 more source

Test research of different material made garbage enzyme’s effect to soil total nitrogen and organic matter

IOP Conference Series: Earth and Environment, 2020
Garbage enzyme is made from fruit and vegetable wastes. Apple peel, dragon peel and eggplant peel are selected as to ferment for 6 months. The product has many active enzymes and microbiology flora.
Y. Tong, Bingguang Liu
semanticscholar   +1 more source

Total Nitrogen in Fertilizers

Journal of AOAC INTERNATIONAL, 1968
Abstract A three-laboratory collaborative study was made of the comprehensive nitrogen method and the new Raney catalyst powder method for total nitrogen in fertilizers. Both methods worked quite well and, with minor modifications, they should provide the basis for a broader collaborative stvidy to provide an official method for total ...
Gary F Krause, Paul R Rexroad
openaire   +1 more source

Evaluation of Nitrification Process in Constructed Wetlands: A review on Novel Biological Nitrogen Removal Processes

Journal of Engineering and Sustainable Development, 2022
Constructed wetlands attracted the attention of researchers as a sustainable, economic and efficient wastewater treatment technique. Many papers showed the efficient performance of constructed wetlands to treat municipal, industrial, livestock, petroleum
Yasir T. Hameed, Narmeen A. Abdalqadir, Hala H. Nussrat, Khaled M. Shahot   +3 more
doaj   +1 more source

Determination of Total Nitrogen in Plant Fruits by Graphite Digestion Apparatus and Automatic Azotometer

Yankuang ceshi, 2020
BACKGROUND By measuring the nitrogen content in plant fruits, the growth status of plants can be grasped and important information for improving the yield of high-quality fruits can be provided.
WU Gang, ZHANG Zhao-fa, SONG Fan, LIU Xian, MA Hui-chun, PANG Xue-min, ZHANG Jia-lin, LIU Yan-yun   +7 more
doaj   +1 more source

Treating performance of a commercial-scale constructed wetland system for aquaculture effluents from intensive inland Micropterus salmoides farm

Frontiers in Marine Science, 2022
In intensive inland fish farming, discharge of untreated effluents adversely affects adjacent water bodies and causes water pollution. Thus, it is highly necessary to treat the effluents from inland fish farm.
Bing Li, Rui Jia, Yiran Hou, Jian Zhu
doaj   +1 more source

Estimation of soil nitrogen availability [PDF]

Journal of Agricultural Sciences (Belgrade), 2003
Our research has been made on brown forest soil that is used in long-term experiments. The soil we used had a certain crop rotation (wheat-corn) and had been fertilized according to a certain system for 30 years. In the experiment, quantities of nitrogen
Kresović Mirjana M., Ličina V.
doaj   +1 more source

N Fertilizer in Combination with Straw Improves Soil Physicochemical Properties and Crop Productivity in Sub-Humid, Drought-Prone Areas

Agronomy
Straw returning may be an efficient strategy to maintain agricultural sustainability. However, which straw returning strategy can effectively improve soil properties and crop yield remain unclear.
Qingyue Liu, Liang Lu, Jian Hou, Jinling Bai, Qin’ge Dong, Hao Feng, Yufeng Zou, Kadambot H. M. Siddique   +7 more
doaj   +1 more source