Results 21 to 30 of about 874,412 (313)

Effect of N on Growth, Antioxidant Capacity, and Chlorophyll Content of Sorghum

Agronomy, 2022
Nutrient management is an important challenge to agricultural sustainability. In this study, the effects of three nitrogen (N) fertilizer levels (N1 = 0, N2 =150, and N3 = 300 kg ha−1) on growth, chlorophyll content, and antioxidant capacity of two grain
Irshad Ahmad, Guanglong Zhu, Guisheng Zhou, Xudong Song, Muhi Eldeen Hussein Ibrahim, Ebtehal Gabralla Ibrahim Salih   +5 more
doaj   +1 more source

Evaluating Nitrogen Management Practices for Greenhouse Gas Emission Reduction in a Maize Farmland in the North China Plain: Adapting to Climate Change

Plants, 2023
Quantification of the trade-offs among greenhouse gas (GHG) emissions, yield, and farmers’ incomes is essential for proposing economic and environmental nitrogen (N) management strategies for optimizing agricultural production.
Huayun He, Qi Hu, Feifei Pan, Xuebiao Pan   +3 more
doaj   +1 more source

Approaches to nitrogen fixation and recycling in closed life-support systems

Frontiers in Astronomy and Space Sciences, 2023
N2 fixation is essential to the sustainability and operation of nitrogen systems but is energetically expensive. We developed a model and used sensitivity analysis to identify the impact of aerobic and anaerobic waste digestion, crop harvest index, rates
Tyler Wallentine, David Merkley, Noah J. Langenfeld, Bruce Bugbee, Lance C. Seefeldt   +4 more
doaj   +1 more source

Phenotypic, Physiological, and Gene Expression Analysis for Nitrogen and Phosphorus Use Efficienies in Three Popular Genotypes of Rice (Oryza sativa Indica)

Plants
Crop nitrogen (N) and phosphorus (P) use efficiencies (NUE/PUE) are important to minimize wastage and nutrient pollution, but no improved crop for both is currently available. We addressed them together in rice, in the view of its high consumption of NPK
Bhumika Madan, Nandula Raghuram
doaj   +1 more source

Durum Wheat Yield and N Uptake as Affected by N Source, Timing, and Rate in Two Mediterranean Environments

Agronomy, 2021
In nitrate vulnerable zones (NVZs), site-specific techniques are needed to match N availability with durum wheat (Triticum turgidum subsp. durum Desf.) requirements.
Silvia Pampana, Marco Mariotti
doaj   +1 more source

Combined approach based on principal component analysis and canonical discriminant analysis for investigating hyperspectral plant response

Italian Journal of Agronomy, 2012
Hyperspectral (HS) data represents an extremely powerful means for rapidly detecting crop stress and then aiding in the rational management of natural resources in agriculture.
Anna Maria Stellacci, Annamaria Castrignanò, Mariangela Diacono, Antonio Troccoli, Adelaide Ciccarese, Elena Armenise, Antonio Gallo, Pasquale De Vita, Antonio Lonigro, Mario Alberto Mastro, Pietro Rubino   +10 more
doaj   +1 more source

Cultivation and Nitrogen Management Practices Effect on Soil Carbon Fractions, Greenhouse Gas Emissions, and Maize Production under Dry-Land Farming System

Land, 2023
Effective nitrogen management practices by using two cultivation techniques can improve corn productivity and soil carbon components such as soil carbon storage, microbial biomass carbon (MBC), carbon management index (CMI), and water-soluble carbon (WSC)
Honglei Ren, Shengjun Xu, Fengyi Zhang, Mingming Sun, Ruiping Zhang   +4 more
doaj   +1 more source

The Potential Role of Nitrogen Management in Enhancing Grain Yield and Lodging Resistance of Shanlan Upland Rice (Oryza sativa L.)

Agronomy
As a drought-resistant and water-saving rice (Oryza sativa L.), the Shanlan upland rice germplasm can provide solutions to the food security problems caused by frequent water shortages.
Jun Wu, Qiansi Liao, Farooq Shah, Zhaojie Li, Yang Tao, Peng Wang, Li Xiong, Qianhua Yuan, Wei Wu   +8 more
doaj   +1 more source

Nitrogen management for malting barley [PDF]

Communications in Soil Science and Plant Analysis, 1980
Abstract Malting barley is a specialized agricultural crop in which high yields and quality are production objectives. We evaluated the effects of different N rates on barley yields and selected malting quality parameters grown on irrigated silt loam soils (Xerollic calciorthids).
Ruffing, B.J., Westermann, D.T., Jensen, M.E.   +2 more
openaire   +1 more source

Nitrogen Supply and Management in Organic Farming [PDF]

, 2008
This topic review aims to summarise knowledge and experience of Nitrogen supply and management in organic farming systems, including : Nitrogen fixation; Nitrogen recycling; the effect of the length of the fertility building phase or ley and the effect ...
Briggs, Stephen
core