Results 21 to 30 of about 557,066 (314)
Soil Surveys and Soil Analyses
The Journal of Agricultural Science, 1911 In undertaking a survey of the soils of a given district the methods of analysis and the classification to be adopted (which in its turn shapes the scheme of the work) must be determined by the purpose before the investigator at the outset. His end may be scientific–to assign the soils in question to their types, or practical–to give information to the
Hall, A. D., Russell, E. J.
openaire +1 more source
Distribution of Nutrients in Snap Bean Plant Organs as Affected by N, P and K Fertilizer Levels [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2017 A pot experiment was planted at the experiments Farm at Mansoura University Faculty of Agriculture, during the summer season of 2015 to monitor the effect of various levels of nitrogen (N), phosphorus (P) and potassium (K) fertilizers treatments on ...
M. EL Hassanin +3 more
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IMPACT OF INTERMITTENT IRRIGATION AND NITROGEN FERTILIZATION ON YIELD OF RICE (Orayza sativa L.) AND SOME WATER RELATIONS [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2012 Two field experiments were conducted at Sakha Agricultural Research Station farm, Kafr Elshiekh Governorate during the two successive seasons 2005 and 2006 to study the effect of intermittent irrigation water and nitrogen fertilizer levels on rice yield ...
M. G. T. Zoghdan +2 more
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A MODERN APPROACH FOR FERTIGATION UNDER GATED PIPES TECHNIQUE AND ITS IMPACT ON MAIZE PRODUCTIVITY AT NORTH NILE DELTA [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2013 For improving nitrogen utilization efficiency by maize crop under gated pipes irrigation technique, a field experiment was conducted at El-Hamoul district, Kafr Elshiekh governorate during the summer season of 2011.
A. A. Taha +3 more
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EFFECT OF BIO AND ORGANIC AMENDMENTS ON GROWTH AND YIELD OF MAIZE IN NEWLY RECLAIMED SOIL [PDF]
Journal of Agricultural Chemistry and Biotechnology, 2006 Two field experiments were carried out during two seasons of 2004-2005 to study the effect of inoculation with biofertilizers combined with different types of composts on the growth vigour and productivity of maize plants (Zea mays) grown in sandy ...
B.A. Hasouna +3 more
doaj +1 more source
Effects of acid rain on competitive releases of Cd, Cu, and Zn from two natural soils and two contaminated soils in hunan, China [PDF]
, 2007 Leaching experiments of rebuilt soil columns with two simulated acid rain solutions (pH 4.6– 3.8) were conducted for two natural soils and two artificial contaminated soils from Hunan, southcentralChina, to study effects of acid rain on competitive ...
Probst, Jean-Luc +4 more
core +1 more source
, 2008 N2O is a known greenhouse gas that increased by 16% over the last 200 years. The main sources are native and agricultural soils where predominantly soil bacteria perform nitrification and denitrification with N2O as side and intermediate product ...
Vieten, Beatrix
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Modest capacity of no-till farming to offset emissions over 21st century
Environmental Research Letters, 2021 ‘No-till’ (NT) agriculture, which eliminates nearly all physical disturbance of the soil surface on croplands, has been widely promoted as a means of soil organic carbon (SOC) sequestration with the potential to mitigate climate change.
Michael W Graham +3 more
doaj +1 more source
Agricultural soils and microplastics: Are biosolids the problem?
Frontiers in Soil Science, 2023 Biosolids are the solid by-product of the wastewater treatment system. They are regularly applied to agricultural land in the UK to fertilize and increase crop yields, but they have been shown to contain high concentrations of microplastics.
Freya Radford +6 more
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Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function
FEBS Open Bio, EarlyView.We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke +4 more
wiley +1 more source