نتایج جستجو برای: soil grain size

تعداد نتایج: 774776  

Muhammad Shoaib Shafi Syed Azam Shah Syed Mahmood Shah Wisal Mohammad

Effects of organic manure (poultry manure) applied alone and integrated with inorganic fertilizer (urea) on yield and yield component, N-uptake and soil fertility in wheat-maize cropping system was evaluated in a field experiment at Nuclear Institute for Food and Agriculture, Peshawar, Pakistan. Poultry manure was applied alone and were integrated in different proportions with mineral nitrogeno...

Journal: :desert 0
n. mashhadi international research center for living with desert, university of tehran, iran m. hanifehpoor faculty of natural resources, university of tehran, karaj, iran f. amiraslani rs & gis dept., faculty of geography, university of tehran, tehran, iran sh. mohamadkhan natural geography dept., faculty of geography, university of tehran, tehran, iran

aeolian process and subsequently soil erosion are key factors in dryland environments. such phenomena are related not only to geoecological factors (lithology, topography, and climatology) but also to land-use and plant cover changes. formation of new sand dunes in damghan explains the development of human activities over the past. the aim of this study is to explain the land use changes and th...

2016
Dongfeng Ning Yongchao Liang Zhandong Liu Junfu Xiao Aiwang Duan

Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag on soil pH, silicon availability, rice growth and metals-immobilization in paddy soil. Our results show that application of slag at a rate above higher or equal to 1 600 mg plant-av...

2016
Yongjie Wang Fei Dang R. Douglas Evans Huan Zhong Jiating Zhao Dongmei Zhou

Methylmercury (MeHg) accumulation in rice has great implications for human health. Here, effects of selenium (Se) on MeHg availability to rice are explored by growing rice under soil or foliar fertilization with Se. Results indicate that soil amendment with Se could reduce MeHg levels in soil and grain (maximally 73%). In contrast, foliar fertilization with Se enhanced plant Se levels (3-12 fol...

ژورنال: آبخیزداری ایران 2020
Haghani, Zahra, Vaezi, Ali Reza,

This study was conducted to investigate the effect of slope gradient and soil physical properties (grain size distribution, bulk density, aggregate stability and permeability) on water erosion in the furrows of rainfed farms under fallow conditions. The furrows with 6 m length were installed in five rainfed farms with 6.1, 10.6, 14.8, 20.7 and 27.1% slope steepness at three replications. Resul...

2017
Muhammad U. Chattha Muhammad U. Hassan Imran Khan Muhammad B. Chattha Athar Mahmood Muhammad Nawaz Muhammad N. Subhani Mina Kharal Sadia Khan

Zinc (Zn) deficiency caused by inadequate dietary intake is a global nutritional problem, particularly in developing countries. Therefore, zinc biofortification of wheat and other cereal crops is being urgently addressed and highly prioritized as a research topic. A field study was planned to evaluate the influence of zinc application on grain yield, grain zinc content, and grain phytic acid co...

2018
Jaswant Singh Khokhar Sindhu Sareen Bhudeva Singh Tyagi Gyanendra Singh Lolita Wilson Ian P King Scott D Young Martin R Broadley

Wheat is an important dietary source of zinc (Zn) and other mineral elements in many countries. Dietary Zn deficiency is widespread, especially in developing countries, and breeding (genetic biofortification) through the HarvestPlus programme has recently started to deliver new wheat varieties to help alleviate this problem in South Asia. To better understand the potential of wheat to alleviate...

متاعی, سمیرا, امیرنیا, رضا , تاجبخش , مهدی , عبدالهی مندولکانی, بابک,

In order to evaluate effects of iron, zinc and manganese, and the methods of applying them on yield and yield components of sweet corn, an experiment was performed as factorial based on randomized complete block design with four replications at the Research Farm of Urmia University, during 2009-2010. Experimental factors were micronutrient fertilizers with four levels (control, iron, zinc and m...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
سجاد کردی باشگاه پژوهشگران جوان و نخبگان، واحد خرم آباد، دانشگاه آزاد اسلامی، خرم آباد، ایران ماشاالله دانشور استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان، خرم آباد، ایران منوچهر سیاح فر استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خرم آباد، خرم آباد، ایران قدرت الله شاه کرمی استادیار گروه زراعت، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد خرم آباد، خرم آباد، ایران

to determine the correlation between grain yield and its components in some grain corn hybrids and their cause and effect relationships in various fertilizer application methods, an experiment was carried out as split plot based on randomized complete block design with two fertilizer application methods (urea foliar application and soil application method), four grain corn hybrids (ns 640, kons...

2016
M S Kabir M A Salam D N R Paul M I Hossain N M F Rahman Abdullah Aziz M A Latif

Arsenic pollution became a great problem in the recent past in different countries including Bangladesh. The microlevel studies were conducted to see the spatial variation of arsenic in soils and plant parts contaminated through ground water irrigation. The study was performed in shallow tube well command areas in Sadar Upazila (subdistrict), Faridpur, Bangladesh, where both soil and irrigation...

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