نتایج جستجو برای: soil morphology

تعداد نتایج: 324371  

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2014
Shamsul Hayat Abrar Ahmad Arif Shafi Wani Mohammed Nasser Alyemeni Aqil Ahmad

Cadmium, a non-essential and toxic metal, negatively affects plant growth and productivity, and alters the plant's physiological processes necessary for its survival. The present study was designed to explore the individual and combined effects of calcium and salicylic acid (SA) on the morphology and physiology of Brassica juncea L. cv. Varuna under cadmium stress. The application of calcium (2...

2008
Christopher D. Barton Danielle M. Andrews Randall K. Kolka

Carolina bays are shallow depression wetlands found in the southeastern United States that have been severely altered by human activity. The need to restore these complex and diverse systems is well established, but our limited understanding of wetland hydrologic processes in these systems hinders our ability to assess the effectiveness of bay restoration efforts. Carolina bays exhibit a wide r...

2014
Murielle Ghestem Kunfang Cao Wenzhang Ma Nick Rowe Raphaëlle Leclerc Clément Gadenne Alexia Stokes

Major reforestation programs have been initiated on hillsides prone to erosion and landslides in China, but no framework exists to guide managers in the choice of plant species. We developed such a framework based on the suitability of given plant traits for fixing soil on steep slopes in western Yunnan, China. We examined the utility of 55 native and exotic species with regard to the services ...

2004
L. H. COMAS D. M. EISSENSTAT

1. There is limited understanding of patterns of variation that exist among root traits of different species, especially under field conditions. We contrasted 11 fastand slow-growing species paired within five evolutionary lineages to investigate whether root traits associated with soil resource acquisition were related to species’ potential growth rate. 2. Measurements of root morphology, arch...

Journal: :Journal of nematology 2000
B A Fortnum M J Kasperbauer D R Decoteau

The effect of different-colored polyethylene mulches on quantity and spectra of reflected light, plant morphology, and root-knot disease was studied in tomato (Lycopersicon esculentum) grown in simulated planting beds. Tomato plants were inoculated with Meloidogyne incognita at initial populations (Pi) of 0, 1,000, 10,000, or 50,000 eggs/plant, and grown in a greenhouse for 50 days over white, ...

2010

The conditions that cause the development of symptoms of frenching in tobacco {Nicotiana tabacum L.) plants are unknown. Low nitrogen, ^ low acidity, and excessive moisture ^ have at times been held to be contributing factors. Nevertheless soil from fields of severely frenched plants was often incapable of producing this morphological abnormality in the greenhouse. Abnormal plants transplanted ...

2017
Changjie Chen Weiwei Yin Guicui Chen Guangxiang Sun Guohe Wang

In this work, windmill palm fiber (WPF), alkali-treated fiber (AF) without hemicellulose and bleached fiber (BF) without lignin were prepared and buried in soil for 30, 60 and 90 days. The surface morphology, chemical composition, crystallinity degree, mechanical properties, and residual mass rate of the samples, before and after biodegradation, were investigated. According to the results, soil...

Journal: :Journal of Degraded and Mining Lands Management 2023

One of the indicators land productivity assessment is soil fertility. The causes infertile have been widely reported. This study aimed to evaluate fertility using Soil Fertility Capability Classification (SFCC) approach and determine relationship between morphological physiochemical properties research was conducted in North Galela Sub-district, Halmahera Regency. framework began with interpret...

Journal: :علوم و تکنولوژی پلیمر 0
احمد ربیعی مهدی گیلانی هاجر جمشیدی

synthetic water soluble acrylamide-based polymers have wide range of ap-plications  in  the  feld  of  soil  establishment  and  non-desertifcation.  in  this research, the acrylamide-based anionic polyelectrolytes were prepared by  solution polymerization. the polymerization was carried out using aibn as a radical initiator and at different degrees of anionic charges ranging between 10% and 30...

2012
LESLIE D. McFADDEN

Field and laboratory analyses of soils on 11 well-dated fluvisil terraces spanning the past 0.5 m.y. demonstrate that a threshold governs changes in several morphological and chemical characteristics of increasingly older soils. Correlations with respect to time among iron species, soil morphology, and soil silt and clay demonstrate that the chronosequence at Cajon Pass reflects primarily an ev...

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