scholarly journals Tillage and Nitrogen Fertilization Impact on Irrigated Corn Yields, and Soil Chemical and Physical Properties Under Semiarid Climate

2013 ◽  
Vol 1 (3) ◽  
pp. 90-98
Author(s):  
Muhammad Iqbal ◽  
Abdul Ghaffar Khan ◽  
Anwar Ul-Hassan ◽  
K.R. Islam
Keyword(s):  
Physical Properties ◽  
Nitrogen Fertilization ◽  
Semiarid Climate

scholarly journals Response of Amaranthus cruentus cv Mexicano to nitrogen fertilization under irrigation in the temperate, semiarid climate of North Patagonia, Argentina

2018 ◽  
Vol 42 (2) ◽  
pp. 99-110
Author(s):  
María Fany Zubillaga ◽  
Ricardo Camina ◽  
Gustavo Adolfo Orioli ◽  
Daniel Alejandro Barrio
Keyword(s):  
Nitrogen Fertilization ◽  
Amaranthus Cruentus ◽  
North Patagonia ◽  
Semiarid Climate

EFESIENSI PEMUPUKAN NITROGEN TERHADAP SIFAT FISIK TANAH SERTA HASIL TANAMAN KANGKUNG DARAT MELALUI APLIKASI PUPUK ORGANIK CAIR KRINYU (Ipomea reptans poir)

AGRICA ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 87-101
Author(s):  
Stefan Jaghu Renggi Stefan ◽  
Charly Mutiara
Keyword(s):  
Physical Properties ◽  
Ground Water ◽  
Nitrogen Fertilizer ◽  
Nitrogen Fertilization ◽  
Block Design ◽  
Soil Physical Properties ◽  
Fertilizer Efficiency ◽  
Outcome Variable ◽  
Fresh Weight ◽  
Water Spinach

The problems faced are the use of inorganic fertilizers that damage the level of soil organic matter decreases, soil structure is damaged, and environmental pollution. This research utilizes liquid organic fertilizer, kirinyu because it has N elements which are high enough to provide yield of ground water spinach plants and soil physical properties.                      This study aims to determine the effect of nitrogen fertilizer efficiency on soil physical properties and the effect of nitrogen fertilizer efficiency on land kale yield. The study was arranged based on 2 factors: the outcome variable using a randomized block design (RBD) and the variable saving of Soil Physical Properties.                The results of statistical analysis show that the efficiency of nitrogen fertilization on the yield of ground water spinach plants has a very significant influence on yield variables which include fresh weight of land spinach tan-1 (g) and fresh weight of water spinach ha-1 (ton). The efficiency of nitrogen fertilization on the yield of ground water spinach plants has a very significant effect with an average increase in each treatment for fresh water spinach per plant by 27.97% and the fresh weight of water spinach per hekatar by 27.97%. The efficiency of nitrogen fertilization on the physical properties of the soil in kangkung cultivation in Lokoboko village has sandy clay soil texture, has a density value of contents ranging from 1.33 g / cm - 1.37 g / cm and soil porosity 45.46% - 50.22 %. The soil color is dominated by 10 YR 2/1 Black and 10 YR 2/2 Very Dark Brown, having soil temperatures ranging from 25,250C - 26,750C.

The Photometric Properties of the Ap Stars

1976 ◽  
Vol 32 ◽  
pp. 365-377 ◽  
Author(s):  
B. Hauck
Keyword(s):  
Physical Properties ◽  
Ap Stars

The Ap stars are numerous - the photometric systems tool It would be very tedious to review in detail all that which is in the literature concerning the photometry of the Ap stars. In my opinion it is necessary to examine the problem of the photometric properties of the Ap stars by considering first of all the possibility of deriving some physical properties for the Ap stars, or of detecting new ones. My talk today is prepared in this spirit. The classification by means of photoelectric photometric systems is at the present time very well established for many systems, such as UBV, uvbyβ, Vilnius, Geneva and DDO systems. Details and methods of classification can be found in Golay (1974) or in the proceedings of the Albany Colloquium edited by Philip and Hayes (1975).

The Infection of Cells by Bullet-Shaped Viruses

1969 ◽  
Vol 27 ◽  
pp. 372-373
Author(s):  
Frederick A. Murphy ◽  
Alyne K. Harrison ◽  
Sylvia G. Whitfield
Keyword(s):  
Electron Microscopy ◽  
Physical Properties ◽  
Host Cell ◽  
Thin Section ◽  
Cultured Cells ◽  
Cell Infection ◽  
Thin Section Electron Microscopy ◽  
Section Electron ◽  
Section Electron Microscopy

The bullet-shaped viruses are currently classified together on the basis of similarities in virion morphology and physical properties. Biologically and ecologically the member viruses are extremely diverse. In searching for further bases for making comparisons of these agents, the nature of host cell infection, both in vivo and in cultured cells, has been explored by thin-section electron microscopy.

Transmission electron microscopy of composite materials

1988 ◽  
Vol 46 ◽  
pp. 1012-1015
Author(s):  
K.P.D. Lagerlof
Keyword(s):  
Composite Materials ◽  
Physical Properties ◽  
Structural Defects ◽  
Structural Composites ◽  
Multiphase Materials ◽  
Structural Reinforcement ◽  
Transmission Electron ◽  
Reinforced Fiber ◽  
Particulate Reinforced Composites ◽  
Definition Of

Although most materials contain more than one phase, and thus are multiphase materials, the definition of composite materials is commonly used to describe those materials containing more than one phase deliberately added to obtain certain desired physical properties. Composite materials are often classified according to their application, i.e. structural composites and electronic composites, but may also be classified according to the type of compounds making up the composite, i.e. metal/ceramic, ceramic/ceramie and metal/semiconductor composites. For structural composites it is also common to refer to the type of structural reinforcement; whisker-reinforced, fiber-reinforced, or particulate reinforced composites [1-4].For all types of composite materials, it is of fundamental importance to understand the relationship between the microstructure and the observed physical properties, and it is therefore vital to properly characterize the microstructure. The interfaces separating the different phases comprising the composite are of particular interest to understand. In structural composites the interface is often the weakest part, where fracture will nucleate, and in electronic composites structural defects at or near the interface will affect the critical electronic properties.

Physical Properties of Polymers

2004 ◽  
Author(s):  
James Mark ◽  
Kia Ngai ◽  
William Graessley ◽  
Leo Mandelkern ◽  
Edward Samulski ◽  
...  
Keyword(s):  
Physical Properties

Physical Properties of TCNQ Salts with N-Methyl Derivatives of Pyridine

1982 ◽  
Vol 85 (1) ◽  
pp. 257-263 ◽  
Author(s):  
A. Graja ◽  
M. Przybylski ◽  
B. Butka ◽  
R. Swietlik
Keyword(s):  
Physical Properties ◽  
Methyl Derivatives ◽  
Derivatives Of
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