Results 51 to 60 of about 181,941 (293)

Fall‐applied manure can conserve excess soil‐profile inorganic‐N for the subsequent cropping year

open access: yesJournal of Environmental Quality, EarlyView.
Abstract To investigate dairy manure urea fertilizer interactions in cropped soils of the semiarid‐West, we fall‐applied and incorporated (0–0.3 m) soil urea‐N (FertN) rates of 10 (N0), 45 (N1), and 80 mg N kg−1 (N2), co‐applied with either no manure or 86 Mg ha−1 (dry wt.) stockpiled dairy manure.
Rodrick D. Lentz, Jim A. Ippolito
wiley   +1 more source

Vector meson photoproduction studied in its radiative decay channel

open access: yes, 2005
We provide an analysis of vector meson photoproduction in the channel of the vector meson decaying into a pseudoscalar meson plus a photon, i.e. $V\to P\gamma$.
A. D'Angelo   +12 more
core   +1 more source

Valons in mesons

open access: yesPhysical Review D, 1985
We present a systematic study of the valon distribution functions and valon structure functions for pions and kaons. The implications of our results for low-${p}_{T}$ inclusive reactions are emphasized. The complications with the structure function of strange valons are discussed and suggestions are made for future experiments to extract it from the ...
openaire   +3 more sources

Testing Wisconsin P index assessments across cropping systems

open access: yesJournal of Environmental Quality, EarlyView.
Abstract Managing agricultural runoff phosphorus (P) often requires understanding management effects on both dissolved P (DP) and particulate (sediment‐bound) P (PP). The Wisconsin P index (WPI) allows producers to assess land management effects on runoff P by estimating annual P losses in mass per unit area.
Laura Good   +3 more
wiley   +1 more source

Contribution of higher meson resonances to the electromagnetic $\pi$-meson mass difference [PDF]

open access: yes, 2001
Modifications of the DGMLY relation for calculation of electromagnetic $\pi$-meson mass difference based on the Chiral Symmetry Restoration phenomenon at high energies as well as the Operator Product Expansion of quark densities for vector ($\rho$) and ...
A. A. Andrianov   +33 more
core   +2 more sources

Delaying application and injecting nitrogen fertilizer with urease and nitrification inhibitors decreased nitrous oxide emissions and enhanced corn yields

open access: yesJournal of Environmental Quality, EarlyView.
Abstract Early season nitrous oxide (N2O) emissions following nitrogen fertilizer application can be significant if spring rains lead to anaerobic conditions before the crop is established and able to utilize the applied N. However, delaying fertilizer application by 4‐5 weeks after planting usually results in warmer temperatures which promote ammonia (
A. L. Woodley   +6 more
wiley   +1 more source

Meson-meson Scattering in QCD-like Theories [PDF]

open access: yes, 2011
We discuss meson-meson scattering at next-to-next-to-leading order in the chiral expansion for QCD-like theories with general $n$ degenerate flavours for the cases with a complex, real and pseudo-real representation. I.e.
A Deuzeman   +40 more
core   +3 more sources

Remote sensing of soil organic carbon in varied tillage‐crop systems

open access: yesJournal of Environmental Quality, EarlyView.
Abstract The use of remote sensing (RS) to estimate soil organic carbon (SOC) in cropland has become increasingly important to producers, researchers, and policy makers to assess soil and plant health across spatially variable landscapes. Yet, RS estimation of cropland SOC is challenging, particularly when mixed crop residues and soils are present. Our
Amy L. Zoller   +8 more
wiley   +1 more source

Potentials between heavy-light mesons from lattice and inverse scattering theory

open access: yes, 1997
We extend our investigation of heavy-light meson-meson interactions to a system consisting of a heavy-light meson and the corresponding antiparticle.
A. Mihály   +8 more
core   +1 more source

A Model of Mesons [PDF]

open access: yesviXra, 2017
Detailed models of mesons have been derived in terms of real structured particles, in order to replace the formless quark/anti-quark singularities of standard QCD theory. Pion design is related to the muonic mass, and a Yukawa potential is calculated for the hadronic field.
openaire   +1 more source

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