نتایج جستجو برای: plant residues

تعداد نتایج: 476222  

ژورنال: علوم آب و خاک 2013

The incorporation of plant residues in soils of arid and semiarid regions is a major principle of sustainable agriculture. This study was conducted at the research farm of Urmia University (37° 32’N and 45° 5’ E), Urmia, Iran during the 2009 and 2010 growing seasons. Five green manure crops were grown in four replications arranged in a randomized complete block design. The treatments included w...

Journal: :Journal of nematology 2005
Jose-Antonio López-Pérez Tatiana Roubtsova Antoon Ploeg

Plant residues of broccoli, melon, and tomato with or without addition of chicken manure were used as biofumigants in two pot experiments with Meloidogyne incognita-infested soils. The efficacy of these biofumigants in controlling M. incognita infestation in susceptible tomato bio-assay plants was studied at soil temperatures of 20 masculine, 25 masculine, and 30 masculineC. None of the plant r...

Journal: :محیط شناسی 0
مینا مکی آل آقا استادیار، گروه محیط زیست، دانشگاه آزاد اسلامی واحد رودهن مریم فراهانی استادیار، گروه محیط زیست، دانشگاه آزاد اسلامی واحد رودهن

considering the increased use of fertilizers and pesticides in agriculture in recent decades and increasing risks of diseases and environmental hazards in human society’s , standards of remaining pesticides in food and agricultural products required to be considered.in this study, residues of chlorpyrifos and diazinon in apple in the damavand region evaluated. sampled randomly from the apple or...

2010

Total organic carbon (TOC) is the carbon (C) stored in soil organic matter (SOM). Organic carbon (OC) enters the soil through the decomposition of plant and animal residues, root exudates, living and dead microorganisms, and soil biota. SOM is the organic fraction of soil exclusive of nondecomposed plant and animal residues. Nevertheless, most analytical methods do not distinguish between decom...

The aim of this study was to investigate the effect of leaching on the reduction of soybean (Glycin max), black cumin (Nigella sativa), dill (Anethum graveolens) and dragonhead (Dracocephalum moldavica) residues allelopathy in wheat (Triticum aestivum) cropping. The experiment was conducted in a completely randomized design with three replications in 2017. The factors consisted of four types of...

Journal: :international journal of advanced biological and biomedical research 2014
shahrzad kabirinejad mahmoud kalbasi amir hoseein khoshgoftarmanesh mehran hoodaji majid afyuni

objective: returning crop residue to the soil exerts favorable effects on physical and chemical properties of soil. in fact, the plant residues can affect soil conditions such as ph and important role in soil fertility and cycling of elements in the soil may have. in addition to the role of the organic matter from decomposition of crop residue in increasing the concentration of micronutrients i...

Journal: :Bioinformation 2007
Duvvuru muni Rajasekhara Reddy

Haemoglobins are found ubiquitously in eukaryotes and many bacteria. In plants, haemoglobins were first identified in species, which can fix nitrogen via symbiosis with bacteria. Recent findings suggest that another class of haemoglobins termed as nonsymbiotic haemoglobins are present through out the plant kingdom and are expressed differentially during plant development. Limited data available...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

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