نتایج جستجو برای: consumption of chemical fertilizers and pesticides

تعداد نتایج: 24081317  

امیر قلاوند, , سیف اله فلاح, , محمدرضا خواجه پور, ,

It is necessary to use organic fertilizers and decrease chemical fertilizers consumption to reach sustainable agriculture. Thus, to study the effects of manure incorporation methods, and integrated effects of poultry manure with chemical fertilizers on the grain yield and yield components of maize, an experiment was conducted in 2004 at the Agricultural Research Farm of Lorestan Weather Departm...

In order to study the effect of phosphate biofertilizer and chemical fertilizers of nitrogen, phosphorus and sulfur  on some growth and yield components  of Camelina sativa L.,  a study was conducted based on a factorial experiment; this was done in a randomized complete block design with three replications at Kazeroon during the 2016 growing season. Treatments included bio-based phosphorus (P)...

 Background: Fruits especially citrus species are an integral part of human diet. Contamination of foodstuffs by heavy and toxic metals via environmental pollution has become an inevitable challenge these days. Therefore, the effect of pollutants on food safety for human consumption is a global public concern. In this regards, this study was conducted for Al and Cu health risk assessme...

2015

Corresponding Author: Effendy Department of Agriculture Economics, Tadulako University, Indonesia Email: [email protected] Abstract: This research aims to: (1) analyze the effect of input production against total beans per 100 g of dry cocoa beans and (2) analyze the correlation of total beans and fat content of cocoa beans. The Cobb-Douglas production function assisted in answering the...

2004

The agricultural production system in Sri Lanka consists of two traditional and well-defined components. One is the plantation section, established during the colonial period, consisting of large units, and producing perennial crops such as coffee, tea, rubber, and coconut mainly for export. The other is the smallholder sector comprised of small farms which produce most of the country’s rice, v...

2007
J. R. Plimmer

Agricultural production relies heavily on manmade chemicals used as fertilizers and pesticides, and to regulate plant growth. Pesticides are released intentionally into the environment to control insects, weeds, plant diseases and other pests that affect crop or animal production, as well as to control insects that spread human diseases. Pesticides have a well-established role in agriculture an...

Journal: :journal of medicinal plants and by-products 0

experiment was conducted as split plot in a randomized complete block design with three replications in kermanshah to shed lights on economic analysis of deficit irrigation and integrated application of biological and chemical fertilizer son cultivation of medicinal plant borage (borago officinalis l). irrigation tritments include: a) 30% less water than crop requires invegetative, b) inreprodu...

حسین‫زاده, عباس, رنجبر, پریسا, نظری دلجو, محمد جواد,

This research was performed to evaluate the effects of foliar application of nano-silicon (NSi), as a quasi-essential element, on yield, flower quality, vase life and infestation percentage of gerbera by greenhouse whitefly. Treatments were preharvest foliar application of different levels of NSi (0, 50 and100 mg/L) on gerbera 'Stanza' in a soilless system (to eliminate the effects of soil's Si...

2013
DANIEL E. WUESTE JOHN GENTRY

RISKS TO THE ENVIRONMENT AND SOCIETY POSED BY RESISTANT PESTS Many general questions and observations were made concerning the risk of pests, especially insect pests to a crop containing a transgenic pesticide, e.g., the Bacillus thuringiensis (Bt) toxin. If pests cannot be controlled, food and fiber crops will be jeopardized and may negatively impact society throughout the world. As a result, ...

ژورنال: علوم آب و خاک 2007
امیر قلاوند, , سیف اله فلاح, , محمدرضا خواجه پور, ,

It is necessary to use organic fertilizers and decrease chemical fertilizers consumption to reach sustainable agriculture. Thus, to study the effects of manure incorporation methods, and integrated effects of poultry manure with chemical fertilizers on the grain yield and yield components of maize, an experiment was conducted in 2004 at the Agricultural Research Farm of Lorestan Weather Depar...

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