نتایج جستجو برای: phosphorus fertilizers

تعداد نتایج: 53510  

2017
Nikolay Khabarov Michael Obersteiner

The commodity market super-cycle and food price crisis have been associated with rampant food insecurity and the Arab spring. A multitude of factors were identified as culprits for excessive volatility on the commodity markets. However, as it regards fertilizers, a clear attribution of market drivers explaining the emergence of extreme price events is still missing. In this paper, we provide a ...

2015
Khaled A. A. Abdelaal

Two field experiments were conducted at Sakha Research Station, Kafr El-Sheikh Governorate, Egypt during 2012/2013 and 2013/2014 seasons, to study the effect of mineral and bio-fertilizers as well as their combinations on morphology, anatomy, yield and quality of sugar beet. Bio-fertilizers were phosphorine, cerealine and yeast; however, mineral fertilizers were 50, 75 and 100% from recommended...

Journal: :Journal of molecular microbiology and biotechnology 1999
S Harayama H Kishira Y Kasai K Shutsubo

Petroleum-based products are the major source of energy for industry and daily life. Petroleum is also the raw material for many chemical products such as plastics, paints, and cosmetics. The transport of petroleum across the world is frequent, and the amounts of petroleum stocks in developed countries are enormous. Consequently, the potential for oil spills is significant, and research on the ...

2003
Justus von Liebig

This study has been taken up from two viewpoints. First, a study of field and pot experiments, with a view of determining, if possible, the indirect action of various salts when used as fertilizers; to ascertain if the increase in yield obtained from the use of a fertilizer is not due in part to the solvent action which it exerts on the comparatively insoluble phosphorus in the soil. Second, to...

2017
Xiaohua Wang Yanling Chen Catherine L. Thomas Guangda Ding Ping Xu Dexu Shi Fabian Grandke Kemo Jin Hongmei Cai Fangsen Xu Bin Yi Martin R. Broadley Lei Shi

Breeding crops with ideal root system architecture for efficient absorption of phosphorus is an important strategy to reduce the use of phosphate fertilizers. To investigate genetic variants leading to changes in root system architecture, 405 oilseed rape cultivars were genotyped with a 60K Brassica Infinium SNP array in low and high P environments. A total of 285 single-nucleotide polymorphism...

Journal: :Environmental management 2010
Michael J White Daniel E Storm Philip Busteed Scott Stoodley Shannon J Phillips

In the United States, many state and federally funded conservation programs are required to quantify the water quality benefits resulting from their efforts. The objective of this research was to evaluate the impact of conservation practices subsidized by the Oklahoma Conservation Commission on phosphorus and sediment loads to Lake Wister. Conservation practices designed to increase vegetative ...

Muhammad Bilal Khan Muhammad Iqbal Lone Rehmat Ullah

Wheat (Triticum aestivum L.) was grown in earthen pots containing soil of Balkasar Soil Series (Sandy Loam) in green house at the Department of Soil Science and SWC, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi during Rabi season, 2007. The Crop was treated with two levels of Phosphorus (40 and 80 kg P ha-1 ) in the form of SSP, TSP, NP and DAP. A basal doze of 100 kg N and 60 kg K...

Journal: :Frontiers of Agricultural Science and Engineering 2019

Journal: :Agricultural Economics 2021

Lack of accurate information about soil nutrient deficiencies coupled with limited access to appropriate fertilizers could lead mismatch between (requirements) and fertilizer applications. Such anomalies mismatches are likely have important implications for agricultural productivity. In this article we use experimental (spectral analysis) data from Ethiopia examine farmers’ response its yield r...

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