Results 131 to 140 of about 1,121,903 (282)

Nitrogen Fertilization Temporarily Enhances Phosphatase Activity in a High‐P Loamy Sand

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Efficient plant utilization of soil phosphorus (P) is essential to reduce dependence on mineral P fertilizers in intensive agriculture. Input of mineral nitrogen (N) fertilizers and its chemical form may influence the activity of P mineralizing enzymes, but how this interaction operates under field conditions in a soil with high P ...
Ingeborg F. Pedersen, Martin S. A. Blackwell, Nelly Sophie Raymond, Jørgen Eriksen   +3 more
wiley   +1 more source

Characterizing Movements of the U.S. Current Account Deficit [PDF]

It is unclear whether the exceptionally highU.S. current account deficit can be sustained for a prolonged period. In this paper we approach the topic whether a gradual adjustment or a pronounced reduction of the deficit is likely to occur.
Torge Middendorf, Torsten Schmidt
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Food Security Versus Environmental Health: The Nitrogen Dilemma

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Nitrogen is an essential element for plant growth and, consequently, crop production. However, the cycling of nitrogen in the environment can have negative effects. Here, we review the historical development of scientific and public awareness of these effects and the influence this has had on political action to control them.
Henrike Mielenz, Norbert Bischoff, Klaus Butterbach‐Bahl, Uwe Häußermann, Kurt‐Christian Kersebaum, Karin Rather, Burkhard Stever‐Schoo, Reinhard Well, Claas Nendel   +8 more
wiley   +1 more source

Effects of water and fertilizer management on soil bacterial communities, enzyme activities, and nutrient availability in greenhouse tomatoes.

PLoS ONE
Irrigation and fertilization strategies have been extensively employed to enhance the growth and yield of greenhouse tomatoes. However, the impacts of divergent fertilizer application patterns on soil microbial communities under water-saving irrigation ...
Xiaona Lyu, Hasnuri Mat Hassan, Yaling Zan, Jiongrui Tan   +3 more
doaj   +1 more source

Somatic stress memory: Investigating the adaptive responses of old and modern wheat genotypes to recurrent combined heat and deficit irrigation stress

Plant Stress
In view of the importance of stress memory in plant adaptation to extreme weather events, our study focused on capturing the priming effects on stress responses at later developmental stages in diverse wheat genotypes. Two modern (LM20, LM17) and two old
Nagashree N. Akula, Yannick Valentin El Khoury, Carl-Otto Ottosen, Eva Rosenqvist   +3 more
doaj   +1 more source

Feasibility report to North Unit Irrigation District

, 2009
The intent of this feasibility report is to evaluate and present the technical, financial, and permitting feasibility of five potential hydroelectric power generation sites in the North Unit Irrigation District, Madras, Oregon."August, 2009."This ...

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Soil Type Controls the Effects of the Nitrification Inhibitor DMPP on Nitrate Leaching and Mineral N Retention Under Simulated Heavy Rainfall

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Nitrate (NO3−) leaching is a major nitrogen (N) loss pathway in agriculture and may increase with more frequent heavy rainfall. Nitrification inhibitors, such as 3,4‐dimethylpyrazole phosphate (DMPP), can reduce these losses, but their effectiveness under frequent heavy rainfall events remains unclear, which limits their targeted ...
Felix Ohmann, Klaus Dittert, Hans‐Werner Olfs   +2 more
wiley   +1 more source

Central Plains irrigation conference proceedings

, 2006
Presented at the 2006 Central Plains irrigation conference on February 21-22 in Colby, Kansas.Where did all the irrigators go? Trends in irrigation and demographics in Kansas -- Water losses associated with center pivot nozzle packages -- Impact of ...
Central Plains Irrigation Conference, author
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Salt‐induced nutritional and metabolic shifts in halophytes: implications for food security

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Plant species vary in their response to salinity: some crops show a degree of salt tolerance, while halophytes – whether wild or cultivated – are characterized by a high capacity to thrive under saline conditions. Halophytes are considered a source of valuable secondary metabolites with potential economic value, yet they might also produce ...
Giulia Atzori, Pedro Garcia Caparros, Antonella Castagna, Luisa Custódio, Valentina Lazazzara, Claus Krogh Madsen, Felicia Menicucci, Maria João Rodrigues, Katalin Solymosi, Jose Ramon Acosta Motos   +9 more
wiley   +1 more source

Central Plains irrigation conference proceedings

, 2004
Presented at the Central Plains irrigation conference on February 17-18, 2004 in Kearney Nebraska.Center pivot design and evaluation -- Using CPNOZZLE for sprinkler package selection -- Corn production as related to irrigation capacity -- Irrigation ...
Central Plains Irrigation Conference, author
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