نتایج جستجو برای: texture of soil

تعداد نتایج: 21188303  

Determination of vegetation and soil interaction is necessary for sustainable use of rangeland ecosystem. Soil-vegetation interrelationships in galbanum (Ferula gummosa) habitats of Ataeeye and Shoorrud- Khorasan-e- Razavi Province, Iran were studied using multivariate analysis. The stratified- random system of sampling was employed to randomly collect vegetation and soil samples from 46 quadra...

2003
YUNUS DOGAN SULEYMAN BASLAR HALIL AYDIN HASAN HUSEYIN MERT

This study was undertaken with the aim of illuminating the soil-plant interactions of Pistacia lentiscus L., which is a Mediterranean sclerophylleous coastal zone plant in the Western Anatolian part of Turkey. The soil analysis data showed that this plant grows on different kinds of soils such as sandy-clayey-loam, clayey-loam, sandy-loam and loamy texture. Soils are not saline, with pH moderat...

2012
Jiangbo Xie Lisong Tang Zhongyuan Wang Guiqing Xu Yan Li

In resource-poor environments, adjustment in plant biomass allocation implies a complex interplay between environmental signals and plant development rather than a delay in plant development alone. To understand how environmental factors influence biomass allocation or the developing phenotype, it is necessary to distinguish the biomass allocations resulting from environmental gradients or onto...

Journal: :تحقیقات مهندسی کشاورزی 0
داوود محمد زمانی دانشجوی دکتری دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران سعید مینایی دانشیار گروه مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس رضا علیمردانی استاد گروه مکانیک ماشین های کشاورزی دانشکده مهندسی و فناوری کشاورزی مرتضی الماسی استاد گروه مکانیزاسیون دانشکده کشاورزی دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران حمیدرضا شفیع خانی دانشجوی کارشناسی ارشد مهندسی عمران- سازه دانشگاه آزاد اسلامی واحد تاکستان

this paper presents a method for generating a digital management map to apply cyanazine pre-emergence herbicide. the main objective was to develop a precision method to generate management maps for the variable rate application of herbicide to reduce the amount of herbicide applied and its adverse impact on the environment. first, local and utm coordinates of a field were determined using total...

Journal: :Engineering proceedings 2021

Soil texture is an important environmental factor that influences the crop productivity of wheat (Triticum aestivum) because it provides all nutrients required for growth plants. The soil based on classified into four classes: silt, clay, sand, and loam. mineral particles was by United States Department Agriculture (USDA). According to USDA, loam have a size between sand (2.00–1.0 mm) silt (0.0...

Journal: :Jurnal Teknik Pertanian 2023

Infiltration plays an essential role in increasing the soil water content as a part of hydrological cycle. affects surface runoff and conservation. It also determines sustainability groundwater system. Heavy rain intensity exceeding infiltration capacity will result runoff, excessive cause erosion. This study aims to investigate suitable rate model Mediterranean clay textured with various condi...

The rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. However, plants in general may have a different ability to sustain soil. The objective was to determine the effects of reclamation practices including Haloxylon ammodendron and Atriplex canescens plantation o...

2009
Nazli Yesiller James L. Hanson Donald K. Cohen

This study was conducted to investigate surface characteristics of sand particles. Surface topography of sand particles was determined in 3-D using a commercially available optical profiler. Measurements were made on areas that had side dimensions on the order of 0.1 mm at a lateral resolution of 0.3 Ilm and height resolution of less than 6 nm. The 3-D representation of a surface obtained using...

2014
Laurent Menut Carlos Pérez Karsten Haustein Bertrand Bessagnet Catherine Prigent Stéphane Alfaro

[1] Dust production models (DPM) used to estimate vertical fluxes of mineral dust aerosols over arid regions need accurate data on soil and surface properties. The Laboratoire Inter-Universitaire des Systemes Atmospheriques (LISA) data set was developed for Northern Africa, the Middle East, and East Asia. This regional data set was built through dedicated field campaigns and include, among othe...

2017
Changfu Huo Yiqi Luo Weixin Cheng

Rhizosphere priming is crucial for regulating soil carbon and nitrogen biogeochemical cycles. An appreciable number of studies have been conducted to quantify the rhizosphere priming effect (RPE), and have shown that the RPE is sensitive to changes of plant and soil conditions. These diverse results across individual studies offer us an opportunity to explore for potential general patterns and ...

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