نتایج جستجو برای: quality of soil

تعداد نتایج: 21227663  

2015
Zhanjun Liu Wei Zhou Jialong Lv Ping He Guoqing Liang Hui Jin Jingdong Mao

Evaluation of soil quality can be crucial for designing efficient farming systems and ensuring sustainable agriculture. The present study aimed at evaluating the quality of waterlogged purple paddy soils with different productivities in Sichuan Basin. The approach involved comprehensive analyses of soil physical and chemical properties, as well as enzyme activities and microbial community struc...

Journal: :journal of agricultural science and technology 2015
h. ghorbani n. hafezi moghads h. kashi

soil contamination significantly reduces environmental quality and affects human health. to investigate and assess the effects of land use on the concentrations of some heavy metals in surface soils of golestan province, 227 soil samples (0-60 cm) were collected from three types of land uses including agricultural lands, natural, and industrial areas. the total metals and metalloids (cr, se, as...

2007
Gergely Tóth Vladimir Stolbovoy Luca Montanarella Mark Kibblewhite

This report presents an integrated approach of soil quality and sustainability evaluation.Interactions of the soil and land use systems are summarized from the perspective of theimplication of soil related policies in the European Union. The approach introduced in this reporthas been design in support of the EU Thematic Strategy for soil Protection, aiming soil qualitypreser...

2002
A. J. Franzluebbers

Soil quality is a concept based on the premise that management can deteriorate, stabilize, or improve soil ecosystem functions. It is hypothesized that the degree of stratification of soil organic C and N pools with soil depth, expressed as a ratio, could indicate soil quality or soil ecosystem functioning, because surface organic matter is essential to erosion control, water infiltration, and ...

2014
M. Loganathan

The definition of soil quality encompasses physical, chemical and biological characteristics, and it is related to fertility and soil health. Many indicators can be used to describe soil quality, but it is important to take into account sensitivity, required time, and related properties, than can be explained. Properties related to organic matter content, such as C/N ratio, organic carbon fract...

2014
K T G K Perera T K Weerasinghe

Maize or Corn (Zea mays L.) is the most important cereal in the world after wheat and rice. It possesses high nutritive value and is important as a coarse grain. In Sri Lanka, this crop has cultivated, around 30,000ha and local consumption is around 200,000mt annually. Further, Maize is an easily grown crop and the cultivation has been popular among farmers as a cost effective crop with limited...

2009
Manfred Kaufmann Silvia Tobias Rainer Schulin

a r t i c l e i n f o Keywords: Fuzzy logic expert system Fuzzy inference system Soil quality Soil restoration Soil physical indicators Due to landscaping, mining and construction activities on previously cultivated land, more and more soils are excavated, translocated, deposited and restored. In many cases restored soils show signs of structural degradation such as overcompaction and water log...

Journal: :چغندرقند 0
علیرضا مرجوّی هیأت علمی مرکز تحقیقات کشاورزی اصفهان جهاداکبر محمدرضا هیأت علمی مرکز تحقیقات کشاورزی اصفهان

they are few reports on the effect of municiple compost  on the soil properties, quality  and quantity of sugarbeet. the aim of this study was to obtain information about municipile compost on the soil properties , quality & quantity of of sugarbeet. a field study was conducted at baraan rsearch station with sugarbeet-wheat rotation in permanent plots. the experimental design was factorial comb...

2004
D. W. Reeves

Maintenance and improvement of soil quality in continuous cropping systems is critical to sustaining agricultural productivity and environmental quality for future generations. This review focuses on lessons learned from long-term continuous cropping experiments. Soil organic carbon (SOC) is the most often reported attribute from long-term studies and is chosen as the most important indicator o...

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