Results 11 to 20 of about 731,514 (328)
La dégradation de la fertilité des sols est un problème majeur en Afrique subsaharienne. La forte croissance démographique, la demande locale de nourriture et la réduction des terres arables disponibles risquent d’accroître ce phénomène.
Ramarovahoaka Noelly+9 more
doaj +1 more source
Phosphorus (P) deficiency is a major yield constraint for lowland rice production in the tropics. As P-fertilizer resources are finite, alternative fertilizer management is needed for sustainable rice production. We examined whether farmyard manure (FYM),
Hidetoshi Asai+8 more
doaj +1 more source
After the Fukushima nuclear accident, the Japanese government implemented extensive decontamination work in 137Cs contaminated catchments for residents’ health and local revitalization.
Bin Feng+5 more
doaj +1 more source
Marker Assisted Selection for Bacterial Leaf Blight Rice Mutant Lines Resistant
Induction of mutation using gamma rays for improving of Mira-1 rice variety has been conducted. Rice mutant lines M2 generation have been obtained from mutation by the doses of 25, 50, 75, 100, 150 and 200 Gy of gamma rays.
A. Aryanti+3 more
doaj +1 more source
Sequestration of soil organic carbon (SOC) in agricultural systems is a key indicator of soil fertility improvement and climate change mitigation at the global scale.
Narindra Harisoa Rakotovao+5 more
doaj +1 more source
Identification of Heading Date Six (Hd6) Gene Derived from Rice Mutant Varieties
Genes which were associated with flowering time to indicate the early maturity is known as heading date (Hd). Heading date six (Hd6) gene was identified from rice mutant varieties were Atomita 2, Atomita 3, Atomita 4, Bestari, Cilosari, Diah Suci ...
Aryanti Aryanti+2 more
doaj +1 more source
Xenon Isotopes Identify Large-scale Nucleosynthetic Heterogeneities across the Solar System [PDF]
Nucleosynthetic isotopic anomalies in meteorites and planetary objects contribute to our understanding of the formation of the solar system. Isotope systematics of chondrites demonstrate the existence of a physical separation between isotopic reservoirs in the solar system.
arxiv +1 more source
Source Partitioning Using Stable Isotopes: Coping with Too Much Variation
Background Stable isotope analysis is increasingly being utilised across broad areas of ecology and biology. Key to much of this work is the use of mixing models to estimate the proportion of sources contributing to a mixture such as in diet estimation ...
A. Parnell+3 more
semanticscholar +1 more source
Objectif: le but de l’étude est de déterminer les paramètres sociodémographiques et le profil hormonal de l’homme consultant pour infertilité. Malades et méthodes: Ont été inclus dans notre étude, tous les patients consultant pour infertilité datant d’au
D. Moussa+5 more
doaj +1 more source
Lithium and Lithium Isotopes in Earth’s Surface Cycles
Lithium and its isotopes can provide information on continental silicate weathering, which is the primary natural drawdown process of atmospheric CO2 and a major control on climate.
P. V. Strandmann+2 more
semanticscholar +1 more source