نتایج جستجو برای: 100 chemical fertilizer

تعداد نتایج: 786864  

2011
W. G.

A study was conducted at Bunda College during the 2003/04 crop season to assess the effect of fertilizer application practices on performance of maize with emphasis on improving the efficiency of using urea as a top dressing fertilizer The treatments were laid out as a split-plot in a randomized complete block design (RCBD) with maize varieties as main plots and fertilizer application practices...

Journal: :بوم شناسی کشاورزی 0
اسماعیل رضائی چیانه عادل دباغ محمدی نسب

biological fertilizers can be suitable alternative to chemical fertilizers to increase soil fertility and crop production in sustainable agriculture. in order to evaluation of integrated application of bio-fertilizers and chemical fertilizers on on quantitative and qualitative yield of ajowan in strip intercropping, a field experiment was conducted in a factorial design based on randomized comp...

Journal: :به زراعی کشاورزی 0
رحیمه حسین پور کارشناس ارشد علوم خاک، گروه علوم خاک، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری – ایران مهدی قاجار سپانلو دانشیار گروه علوم خاک، دانشکدۀ علوم زراعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری - ایران سروش سالک گیلانی دانشجوی دکتری علوم خاک، دانشکدۀ کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران

in order to study the effect of vermicompost individually and enriched with chemical fertilizer on soil micronutrient content and micronutrient concentration of lettuce (lactuca sativa l.), athree year experiment was conducted with randomized complete block design in two factors and three replications at the experimental farm of sari agricultural sciences and natural resources university in 200...

Journal: :پژوهش های تولید گیاهی 0
بهجت عمرانی دانشجوی کارشناسی ارشد دانشگاه شهرکرد سیف اله فلاح عضو هیأت علمی دانشکده کشاورزی شهرکرد

background and objectives: although chemical fertilizers in short-term can increase vegetables yield, but must be renewed each planting season that this trend increases the concentration of nitrate in the vegetables shoots, nitrogen leaching and contamination of water resources, loss of beneficial insects and microorganisms and soil fertility will decline, and over time reduce the yield and qua...

ژورنال: علوم آب و خاک 2013
زهرا احمد آبادی, , سپیده رحیمی آلاشتی, , محمد علی بهمنیار , ,

In order to investigate the effects of municipal solid waste enriched with mineral fertilizers on some soil physical properties and lead (Pb) and chromium (Cr) concentration in plant organs of spinach, a field experiment was carried out in a factorial arrangement based on the randomized complete block design with three replications in 2008. The main plot included four levels of fertilizer, cont...

2017
Nan Huang Weiwei Wang Yanlai Yao Fengxiang Zhu Weiping Wang Xiaojuan Chang

Fusarium wilt is one of the main diseases of cucumber, and bio-organic fertilizer has been used to control Fusarium wilt. In this study, a pot experiment was conducted to evaluate the effects of bio-organic fertilizer applied at four levels on the suppression of Fusarium wilt disease in cucumber, the soil physico-chemical properties and the microbial communities. In comparison with the control ...

Abbas Maleki, Alireza Pazoki, Fatemeh Jahani

Although herbs have been important and attractive since long time ago, they have gained such popularity due to the adverse side effects of chemical medicines that nowadays their cultivation has become among significant agricultural programs of most developed countries. In order to study the effects of chemical, organic, and biological fertilizers on Medicinal Chamomile yield and its components,...

Journal: :پژوهش های خاک 0
فرنک مشبکی اصفهانی دانشجوی کارشناسی ارشد ، دانشگاه آزاد اسلامی واحد علوم وتحقیقات فارس حسین بشارتی دانشیار، مؤسسه تحقیقات خاک و آب کشور

phosphorus is an essential element for plants. much of the agricultural lands of iran has calcareous soils, in which, due to high ph, phosphorous availability is less, therefore, it appears as a limiting factor for plant growth. application of biofertilizers instead of chemical ones has gained attention in order to produce healthy crops, reduce pollution of soil and water resources by reducing ...

ژورنال: علوم آب و خاک 2020

In order to increase the available Phosphorous (P), chemical fertilizers are applied; however, P chemical fertilizers are transformed into low available forms over time. Organic amendments could be effective in improving the efficiency of P fertilizers. The aim of this study was to investigate the effect of P fertilizers and vermicopost on the availability and fractions of P and maize (Zea Mays...

Journal: :SERIES CHEMISTRY AND TECHNOLOGY 2020

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