Results 51 to 60 of about 1,017,287 (303)

Effect of Time of Nitrogen Fertilization on Use of Root Reserves in Megathyrsus maximus Cultivars

open access: yesNitrogen
Nitrogen is a very important nutrient in grass maintenance fertilization and therefore must be applied at the appropriate moment. The objective of this study was to identify the most responsive moment to nitrogen fertilization and to verify if root mass ...
Aline M. Motta   +9 more
doaj   +1 more source

EFFECT OF BORON FOLIAR APPLICATION AND DIFFERENT COMBINATIONS OF MINERAL AND ORGANIC NITROGEN FERTILIZATION ON GROWTH, CHEMICAL COMPOSITION AND YIELD OF SWEET PEPPER (Capsicum annuum L.). [PDF]

open access: yesJournal of Plant Production, 2009
Two field experiments were performed at El-Baramon, Experimental Station, Dakahlia Governorate, Egypt, during the successive seasons of 2007 and 2008 to study the effect of boron foliar nutrition and different combinations of mineral and organic nitrogen
M. EL-Said
doaj   +1 more source

Single‐cell Transcriptome Profiling Reveals Gene Regulatory Networks and Key Genes in the Root Epidermis and Cortical Cells Associated with Early Nodulation in Glycine Max

open access: yesAdvanced Science, EarlyView.
Single‐cell transcriptomics of soybean roots soon after rhizobial inoculation reveals epidermal and cortical cell‐specific programs and gene‐regulatory networks acting in symbiosis establishment. We identify an ethylene‐driven regulatory circuit involving WRKY6.3/6.4 transcription factors targeting select Nod19 genes that promotes infection‐thread ...
Yongbin Zhuang   +17 more
wiley   +1 more source

TECHNOLOGICAL VALUE OF SPRING WHEAT OF ZEBRA CULTIVAR AS RELATED TO THE WAY OF NITROGEN AND MAGNESIUM APPLICATION [PDF]

open access: yesJournal of Central European Agriculture, 2010
A significant increase in grain yield was observed following soil fertilization with nitrogen up to the level of 90 kg·ha-1, independently of foliar fertilization.
M RALCEWICZ   +3 more
doaj  

Growth, Root Formation, and Nutrient Value of Triticale Plants Fertilized with Biosolids

open access: yesThe Scientific World Journal, 2012
Biosolids are utilized as nutrient rich fertilizer. Little material is available on benefits to forage crops resulting from fertilization with biosolids.
Wendy Mercedes Rauw   +3 more
doaj   +1 more source

Adaptive Cu Reconstruction in Heterostructure Drives High‐Rate Nitrate‐to‐Ammonia Conversion

open access: yesAdvanced Science, EarlyView.
An adaptively reconstructed Cu/CoOX heterojunction, featuring a surface‐localized, hydroxyl‐rich oxidized Cu species, forms in situ from a CuO/CoOX (Co1Cu9OX) pre‐catalyst during electrochemical nitrate reduction. The self‐adaptive reconstruction and the incorporation of heterostructure regulate nitrogen‐containing intermediate adsorption and *H supply,
Chunyu Yuan   +5 more
wiley   +1 more source

Fertilizer nitrogen in soil

open access: yesAgricultural and Food Science, 1961
The distribution of ammonium nitrogen and nitrate nitrogen in the soils of field trials was followed in two growing seasons. In these trials ammonium nitrate limestone and calcium nitrate were, at several rates, applied as surface dressing. It was found that not only the ammonium nitrogen but also the nitrate nitrogen applied to the surface of loam ...
Kaila, Armi, Hänninen, Pentti
openaire   +4 more sources

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

Nitrogen and potassium fertilization of potato

open access: yesAgricultural and Food Science, 1978
Fourteen one-year N- and K-fertilization experiments for potato were carried out on coarse mineral soils on different sites in Finland. The nitrogen fertilization (from 50 to 156 kg/ha N) was given in the form of ammonium nitrate limestone, and the ...
Hilkka Tähtinen
doaj  

Concepts and Rationale for Regional Nitrogen Rate Guidelines for Corn, April 2006 [PDF]

open access: yes, 2006
Nitrogen (N) is typically one of the largest corn fertilization expenses. Nitrogen application is critical because it signifi cantly improves corn yield in many crop rotations.

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