Results 21 to 30 of about 1,071,828 (189)

The Nitrogen Fixation and Yielding of Pea in Different Soil Tillage Systems

Agronomy, 2022
The field experiment was carried out in 2013 and 2014 as part of a long-term experiment to test the influence of different soil tillage systems (conventional, reduced, direct sowing) on (a) the yield of summer pea (Pisum sativum L.) and (b) the amount of
Agnieszka Faligowska, Stanisław Kalembasa, Dorota Kalembasa, Katarzyna Panasiewicz, Grażyna Szymańska, Karolina Ratajczak, Grzegorz Skrzypczak   +6 more
doaj   +1 more source

Stable Isotope Analysis Reveals That Agricultural Habitat Provides an Important Dietary Component for Nonbreeding Dunlin

Avian Conservation and Ecology, 2005
Although shorebirds spending the winter in temperate areas frequently use estuarine and supratidal (upland) feeding habitats, the relative contribution of each habitat to individual diets has not been directly quantified.
Lesley Joan Evans Ogden, Keith A. Hobson, David B. Lank, Shabtai Bittman   +3 more
doaj   +1 more source

Sources of Nitrogen for Winter Triticale (Triticosecale Wittm. ex A.Camus) Succeeding Pea (Pisum sativum L.)

Agronomy, 2021
Atmospheric nitrogen biologically reduced in legumes root nodule and accumulated in their postharvest residues may be of great importance as a source of this macronutrient for succeeding crops.
Andrzej Wysokinski, Izabela Lozak, Beata Kuziemska   +2 more
doaj   +1 more source

STELLAR ORIGINS OF EXTREMELY C-13- AND N-15-ENRICHED PRESOLAR SIC GRAINS: NOVAE OR SUPERNOVAE? [PDF]

, 2016
Extreme excesses of 13C (12C/13C < 10) and 15N (14N/15N < 20) in rare presolar SiC grains have been considered diagnostic of an origin in classical novae, though an origin in core collapse supernovae (CCSNe) has also been proposed. We report C, N, and Si
Alexander, Conel M. O'D., Alexander, Conel M. O’D., Jose, Jordi, José, Jordi, Liu, Nan, Nguyen, Nguyen, Ann, Nittler, Larry R., Pignatari, Marco, Wang, Jianhua   +9 more
core   +3 more sources

Traceability of poultry offal meal in broiler feeding using isotopic analysis (δ13C and δ15N) of different tissues

Brazilian Journal of Poultry Science, 2010
Our goal was to trace the inclusion of poultry offal meal (OM) in diets by using carbon (13C/12C) and nitrogen (15N/14N) isotopic ratios of different tissues in order to contribute for the development of an independent technology for the certification of
RP Oliveira, C Ducatti, AC Pezzato, JC Denadai, VC Cruz, JR Sartori, AS Carrijo, FR Caldara   +7 more
doaj   +1 more source

PENGARUH APLIKASI ASAM HUMAT DAN PUPUK NPK PHONSKA 15-15-15 TERHADAP SERAPAN NITROGEN DAN PERTUMBUHAN TANAMAN PADI SERTA RESIDU NITROGEN DI LAHAN SAWAH

JTSL (Jurnal Tanah dan Sumberdaya Lahan), 2020
The decline in lowland rice production can be caused by nitrogen nutrient loss through volatilization. The application of humic acid and Phonska 15-15-15 fertilizer can be a solution. This study aimed to determine the effect of humic acid and Phonska 15-
Yulia Nuraini, Annisauz Zahro
doaj   +1 more source

Effects of Reduced Nitrogen Fertilizer Rates on Its Fate in Maize Fields in Mollisols in Northeast China: A ¹⁵N Tracing Study

Agronomy, 2022
A large amount of nitrogen fertilizer is applied in maize planting in Northeast China, but the recovery rate is low, causing a series of water and soil environmental problems in farmland areas.
Ming Liu, Fang Song, Zhihao Yin, Peng Chen, Zhongxue Zhang, Zhijuan Qi, Bai Wang, Ennan Zheng   +7 more
doaj   +1 more source

Contribution of nitrification and denitrification to N2O emissions from urine patches [PDF]

, 2007
Urine deposition by grazing livestock causes an immediate increase in nitrous oxide (N2O) emissions, but the responsible mechanisms are not well understood. A nitrogen-15 (15N) labelling study was conducted in an organic grass-clover sward to examine the
Allen, Ambus, Ambus, Bateman, Bergsma, Bol, Clough, Clough, Conrad, Crutzen, Davidson, De Klein, De Klein, Firestone, Glatzel, Grundmann, Harada, Hutchinson, Kester, Koops, Kyveryga, Mathieu, Mette S. Carter, Monaghan, Monaghan, Mosier, Okereke, Panek, Petersen, Poth, Robertson, Ryden, Schmidt, Shand, Sherlock, Simek, Stevens, Stevens, Stevens, Sørensen, Thomas, Tiedje, Van Groenigen, Weier, Whitehead, Williams, Wrage, Wrage, Wrage, Yamulki, Yoshida   +50 more
core   +1 more source

Utilização do nitrogênio da palha de milho e de adubos verdes pela cultura do milho Utilization of nitrogen from corn plant residues and green manures by corn

Revista Brasileira de Ciência do Solo, 2008
A qualidade dos resíduos vegetais de culturas comerciais e adubos verdes influencia a taxa de mineralização/imobilização de N e o respectivo aproveitamento desse nutriente pelas subseqüentes culturas.
Edson Cabral da Silva, Takashi Muraoka, Salatiér Buzetti, Freddy Sinencio Contreras Espinal, Paulo César Ocheuze Trivelin   +4 more
doaj   +1 more source

Optimizing Initial Nitrogen Application Rates to Improve Peanut (Arachis hypogaea L.) Biological Nitrogen Fixation

Agronomy, 2023
The application of nitrogen fertilizer is crucial to the growth and biological nitrogen fixation of peanut, especially in the seedling stage where nodules have not yet formed.
Ying Liu, Zhenhui Yan, Jianguo Wang, Jihao Zhao, Yiyang Liu, Jie Zou, Lin Li, Jialei Zhang, Shubo Wan   +8 more
doaj   +1 more source