نتایج جستجو برای: fertilization regimes

تعداد نتایج: 74031  

Journal: :Sustainability 2021

Drip irrigation systems are becoming more and mature now widely used to improve crop yield nitrogen use efficiency in Xinjiang, NW China. However, it is not known if leaching occurring or whether will harm the water environment following N fertilization drip irrigation. The purpose of our study was estimate volumes, losses, forms loss coefficients under different fertilization, P K regimes. A l...

2017

In vitro fertilization (IVF) is a process by which an egg is fertilised by sperm outside the body: in vitro . The process involves monitoring and stimulating a woman's ovulatory process, removing an ovum or ova (egg or eggs) from the woman's ovaries and letting sperm fertilise them in a liquid in a laboratory. The fertilised egg (zygote) is cultured for 2–6 days in a growth medium and is then i...

2006
Douglas A. Maguire Aaron R. Weiskittel

approved: Douglas A. Maguire Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insuffic...

2001
David Liti

There is a clear need to develop feed/fertilizer combinations that are appropriate for fish farming in Kenya and other parts of Africa. The strategy of using high-quality nutritionally complete feeds to produce high fish yields, frequently employed in developed countries, is often impossible or inappropriate in countries where high-quality feed ingredients are in short supply or are very expens...

Journal: :Agriculture 2023

In this study, we aimed to evaluate the feasibility of digital image analysis (DIA) as a substitute for standard (SA) in assessing corn ear traits agrotechnical field trials. Accurate and timely prediction yield through can lead precise agricultural management recommendations improvement production. Four replications with 10 plots each were subjected different fertilization regimes analyzed usi...

Journal: :jentashapir journal of health research 0
mahshid bazrafkan department of anatomy, school of medicine, alborz university of medical sciences, karaj, ir iran aligholi sobhani department of anatomy, school of medicine, tehran university of medical sciences, tehran, ir iran; department of anatomy, school of medicine, tehran university of medical sciences, tehran, ir iran. tel: +98-9123266638

background in iranian folk medicine ruta graveolens has been used for female and male contraceptive. there are few studies about the effect of this plant on spermatogenesis. objectives in this study the effect of long term administration of aqueous extract of rg on spermatogenesis has been investigated. materials and methods animals were allocated into 1) control: which did not receive anything...

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