نتایج جستجو برای: 1 and 300 kg n ha

تعداد نتایج: 17359008  

Journal: :Soil Rens: Jurnal Ilmiah Lingkungan Tanah Pertanian 2022

The Inceptisols have the potential to be developed into rice cultivation land because it is widely distributed in Indonesia but has a low of soil fertility. Fertilization N, P, K and Nano Silica fertilizers are efforts provide nutrients for plants. Black that functional cultivated Bangir Lokal Cianjur Variety. This study aims determine effect fertilizes on total N content, uptake, Rice Yield (O...

2015
Upendra M. Sainju U. M. Sainju

Little is known about the effect of management practices on net global warming potential (GWP) and greenhouse gas intensity (GHGI) that account for all sources and sinks of greenhouse gas (GHG) emissions in dryland cropping systems. The objective of this study was to compare the effect of a combination of tillage, cropping system, and N fertilization on GWP and GHGI under dryland cropping syste...

Journal: :Journal of environmental quality 2004
R D Harmel H A Torbert B E Haggard R Haney M Dozier

When improperly managed, land application of animal manures can harm the environment; however, limited watershed-scale runoff water quality data are available to research and address this issue. The water quality impacts of conversion to poultry litter fertilization on cultivated and pasture watersheds in the Texas Blackland Prairie were evaluated in this three-year study. Edge-of-field N and P...

Abdolreza KAZEMEINI, Hosein SADEGHI

In order to investigate the effects of nitrogen fertilizer levels and intercropping ratios on yield and other morphological traits of two crops, field experiments were conducted during two years (2010-2011) in the research field of the school of Agriculture, Shiraz University, Shiraz, Iran. The study was carried out in a factorial experiment laid out based on a completely randomized block desig...

Journal: :تولید گیاهان زراعی 0

a field study was conducted at abourehan research farm of tehranuniversityin 2009 to find out the effects of slow releasing nitrogen from pellet fertilizer of nitrogen and manure on grain yield and some physiological characteristics of corn (single cross 704). the factorial design of the study comprised of randomized complete block with three replications. factors this experiment involved: firs...

2015
Edison A. Díaz-Álvarez Roberto Lindig-Cisneros Erick de la Barrera Harpinder Sandhu

Potential ecophysiological responses to nitrogen deposition, which is considered to be one of the leading causes for global biodiversity loss, were studied for the endangered endemic Mexican epiphytic orchid, Laelia speciosa, via a shadehouse dose-response experiment (doses were 2.5, 5, 10, 20, 40, and 80 kg N ha(-1) yr(-1)) in order to assess the potential risk facing this orchid given impendi...

2008
Upendra M. Sainju Zachary N. Senwo Ermson Z. Nyakatawa Irenus A. Tazisong K. Chandra Reddy

Disposal of poultry litter, a widely available organic manure in the southeastern USA because of a largescale poultry industry, is a major concern because of its contamination in surfaceand groundwater through N leaching and P runoff. Application of poultry litter in no-tilled intensive cropping system could increase soil C and N sequestration compared with the conventional-tilled system with i...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده فنی 1393

. [1] [2] [3] ...

Journal: :پژوهش های زراعی ایران 0
مریم موسی زاده رضا برادران

in order to study the effect of density and time of urea foliar application on oil yield and essences percentage of black cumin (nigella sativa l.) a field experiment was conducted at research station of faculty of agriculture, azad university of birjand in 1387 growing season. three urea foliar application times [1-control 2-at 8-10 leaves stage 3-at 10% flowering 4-100% flowering ] and three ...

2008
Z. A. ZAHIR M. NAVEED M. I. ZAFAR H. S. REHMAN M. ARSHAD

Organic waste materials are being used in huge amounts (tons ha) for improving soil health and crop yields. Recycling of organic wastes enriched with nitrogen and L-tryptophan (L-TRP) could convert organic waste material into a useful soil amendment, which may be effective even when added in substantially small amounts (kg ha). Organic waste material of fruits and vegetables was collected and s...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید