Results 71 to 80 of about 2,356,861 (215)

Effect of combined nitrogen on symbiotic nitrogen fixation in pea plants [PDF]

open access: yes, 1979
The nitrogen-fixing activity of the symbiotic system of Pisum sativum with Rhizobium leguminosarum is adversely affected by combined nitrogen. Both ammonium chloride and potassium nitrate, when added to the roots, lower the nitrogenase activity ...
Houwaard, F.
core  

Post‐Transplant Bendamustine as a Platform for Immune Modulation After Allogeneic Hematopoietic Cell Transplantation

open access: yesEuropean Journal of Haematology, Volume 117, Issue 4, Page 739-749, October 2026.
ABSTRACT Post‐transplant cyclophosphamide (PT‐CY) remains the standard of care for graft‐versus‐host disease (GvHD) prophylaxis in haploidentical hematopoietic cell transplantation (HCT), yet relapse, delayed immune reconstitution, infections, and organ toxicity represent persistent and clinically meaningful limitations.
Megan J. Cracchiolo   +2 more
wiley   +1 more source

Recent Applications of Propylene Carbonate as a Solvent in Sustainable Organic Synthesis

open access: yesChemSusChem, Volume 19, Issue 17, 14 September 2026.
This review evaluates propylene carbonate (PC) as a non‐toxic green solvent in organic synthesis, highlighting its performance in key reactions including cross‐couplings, asymmetric hydrogenations, peptide synthesis and biocatalysis. Across these processes, PC delivers yields comparable to conventional and alternative green solvents.
Laura G. Aguilar‐Sanchez   +1 more
wiley   +1 more source

Heavy Metal Contamination: Impacts From Plants to the Food Chain and Eco‐Friendly Amelioration Strategies

open access: yesAgriFood: Journal of Agricultural Products for Food, Volume 2, Issue 3, Page 232-246, September 2026.
Heavy metal pollution reduces soil health and threatens food safety by entering plants; however, the use of nanoparticles, biofertilizers, and organic fertilizers such as biochar offers a promising strategy for improvement and sustainable agriculture. ABSTRACT Heavy metal (HM) pollution, resulting from human activities such as mining and the excessive ...
Sina Siavash Moghaddam   +4 more
wiley   +1 more source

X-Rays and Nitrogen Mustard Independent Action in Chinese Hamster Cells [PDF]

open access: yes, 1969
We have studied the combined effects of X-irradiation and nitrogen mustard treatment on the colony-forming ability of Chinese hamster cells. In contrast to X-irradiation, nitrogen mustard acting by itself yields an exponential dose-effect relationship ...
Elkind, M.M., Sakamoto, K.
core   +1 more source

Crop sequencing effects of seven crops on grain yield, volunteers, and weeds in Saskatchewan

open access: yesAgronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract Every growing season, producers must decide which crops to grow and in what sequence to enhance returns and sustain productivity. However, when producers consider growing specialty crops like canary seed (Phalaris canariensis L.), coriander (Coriandrum sativum L.), hemp (Cannabis sativa L.), or quinoa (Chenopodium quinoa Willd.), data are ...
William E. May   +5 more
wiley   +1 more source

Tillage regime affects weed infestation in a winter wheat–spring pea rotation in the Pacific Northwest

open access: yesAgronomy Journal, Volume 118, Issue 5, September/October 2026.
Abstract Compared with conventional tillage, no‐till reduces soil erosion and is considered a more sustainable practice in dryland cropping systems of the Pacific Northwest. However, weed management in these systems relies solely on herbicides, and the number of herbicide‐resistant weeds is increasing each year.
Vhuthu Ndou   +3 more
wiley   +1 more source

Nitrogen fixation and nitrogenase activity of Azotobacter chroococcum [PDF]

open access: yes, 1974
The purpose of the present investigation was to study the effect of some chemical, physical and biological factors on growth, efficiency of nitrogen fixation and nitrogenase activity of Azotobacter chroococcum.From biochemical studies with cell-free ...
Brotonegoro, S.
core  

Nitrogen losses (N2O and NO3-) from mustard (Brassica juncea L.) cropping applied urea coated bio-charcoal

open access: yes
Most farmers use urea as a nitrogen fertiliser to raise mustard (Brassica juncea L.), although its nitrogen (N) content is quickly lost due to its hygroscopic nature.
Dedi Nursyamsi   +8 more
core   +1 more source

A note on the availability of organic nitrogen compounds in pot experiments

open access: yes, 1925
In the course of an investigation on the nitrification process in soils a series of pot experiments was set up to compare the manurial actions of some typical organic nitrogen compounds.
Crowther, E. M.
core   +1 more source

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