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It is believed that nitrogen fertilizer could stimulate the release of H+ from soil and the Ca2-P would be dissolved easily and then absorbed by crops[5].Additionally, the increased crop yield caused by fertilization could lead to large output of P resulting in reduction of soil Ca2-P.To the contrary, the Ca2-P contents increased by 86.6% (NP), 241.5% (NP+M), 18.1% (NPK) and 59.7% (NPK+M) respectively after 15-year cultivation.
In addition, the order of P harvested from crop was as follows (data not shown): NPK+M (62.17 kg hm-2)>NP+M (58.62 kg hm-2)>NPK (54.91 kg hm-2)>NP (41.08 kg hm-2).

In domestic and foreign, because the technical data lacks, the engineers and technicians must carry on the exploration and use trial and error methods to solution project question frequently [1].
The cold roll forming process has no welding seam, makes the entire primary beam welding defect reduction, so as to improve the quality of the main beam

Chemical Composition % C Mn S P Si Cu Cr Mo Ni V AISI 1141 0.39 1.41 0.12 0.01 0.24 0.05 0.1 0.01 0.03 0.06 AISI 1151 0.51 0.85 0.11 0.04 - - - - - - PF 0.50 0.31 0.12 - - 3.06 - - - - C70S6 0.72 0.5 0.065 0.009 0.22 - 0.061 - - 0.04 Table 2.Mechanical properties Material Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Reduction of Area (%) AISI 1141 575.7 855.0 17.0 39.0 AISI 1151 930.8 999.8 12.0 31.0 PF 565.4 889.5 15.0 30.0 C70S6 575.7 1006.7 13.0 27.0 The specimens were machined with a gauge section of 62 mm x17mm x 2mm and a generous 22mm shoulder radius.
Their model was substantiated by experimental data.

New generation aluminum alloys are developed to improve the properties through optimization of microstructures of conventional alloys as for 2022-T851 or through a reduction of the material density by mean of Lithium addition as for 2050-T84.
Adsorption assisted Intrinsic stage II d f e a b c a Hydrogen assisted Intrinsic stage I- like c Figure 4: Propagation data compared to modeling frame work: a) adsorption assisted stage II in 2022 in air; b) oriented crystallographic propagation at low DK in 2050 in air; c) intrinsic near threshold stage II in vacuum in 2022; d) intrinsic stage II in vacuum at mid DK in 2050; e) transition in vacuum from intrinsic stage II to intrinsic stage I like in 2050; f) crystallographic intrinsic stage I like in vacuum near threshold in 2050.

In addition, there was good agreement between their simulations, simply calibrated with X-ray compression data for graphite, and the experimentally observed transition pressures for laser-grown nanotubes.
Pugno, Young’s modulus reduction of defective nanotubes.

As it has been proved, the deficit of lithium on tetrahedral sites is compensated with Mn 2+ ions, what leads to the reduction of the average oxidation state of Mn atoms at octahedral sites below +3.5.
The data were collected on the beamline I711 at the MAX-lab laboratory, Lund, Sweden.

Audebert et all reported that a change from brittle to ductile fracture is produced when Cu is partially substituted by Al in Mg65Cu25MM10 alloy, in which they are explained by a reduction of the amount of Cu-rich domains with a chemical short-range-order.
The experimental data and VFT equation matched very well proved that VFT equation can accurately describe the relationship between the glass transition temperature and heating rate of Nd60A10Ni0Cu20.

According to statistics, transmission lines, high voltage distribution network, the user's three low-pressure part of the line loss, the largest low-voltage line loss users, therefore, should be the main focus on loss reduction and energy-saving low-voltage 380V user.
Device uses a 32-bit digital signal processor (DSP) DSP2812 core controller hardware includes power-down protection circuit, keyboard interface circuit, LCD display circuit, program and data memory, the watchdog circuit, switch input and output circuits and so on.

Table 3 Referenced weight of each index to different project Data processing.
Scenario Analysis on the Global Carbon Emissions Reduction Goal Proposed in the Declaration of the 2009 G8 Summit, Science in China Series D: Earth Sciences, 2009 [8] Intergovernmental Panel on Climate Change (IPCC).

Staircase procedure considering 10 MPa as step was followed to elaborate data and to calculate the fatigue limit.
This in turn means that the degree of grain size reduction that can be achieved by SSPing is more than SDRing.