D-value


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D-value

i. The difference between the actual height of a certain pressure surface over sea level and the height of the same pressure surface of the International Standard Atmosphere. It is the difference between the reading of a radio altimeter and a pressure altimeter while flying over the sea. Also known as a D-factor.
ii. The amount (positive or negative) by which the altitude (Z) of a point on an isobaric surface differs from the altitude (ZP) of the same isobaric surface in the ICAO Standard Atmosphere (i.e., D-value = Z—Zp) (ICAO).
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2] can be concluded by distance and time d-value between [p.
k-1]' are the consecutive points and the time d-value of them is [p.
Peak No 2theta Flex Width d-value Intensity I/Io 1 8.
The advice also includes confining silage making to fields with swards with high contents of productive, high digestibility grasses and clovers and ensuring cutting dates coincide with grass ear emergence for the type of silage required - cutting when about 50% of ears have emerged for a 66 D-value forage, earlier for higher quality at the expense of yield and later where quantity is the key requirement.
75]d) Digestibility (g/kg DM) Neutral detergent fibre 754 (a) 592 (b) 515 (c) Acid detergent fibre 698 (a) 571 (b) 455 (c) Crude protein 596 (a) 512 (b) 489 (b) Dry matter 668 (a) 534 (b) 487 (c) Organic matter 691 (a) 551 (b) 494 (b) D-value 625 (a) 524 (b) 476 (c) Significance of effect Item SEM L Q Voluntary intake Fresh matter (kg/d) 0.
Each lot of the ProTest BI Test Pack is certified for population, species, D-value, z-value (where applicable), purity and expiry.
Its three-cut system yields silage with DM 28%, D-value 73, ME 11.
When cropped for silage, first cut should be timed to coincide with first ear emergence, when the D-Value will be around 70.
The independent plant sciences company NIAB has recently started to evaluate different grass varieties for Grazing D-Value.
When cropped for silage, the first cut of Aber Hybrid leys should be timed to coincide with first ear emergence, when the D-Value will be around 70.
There is another guide to sugar level: NIAB recently started to measure the D-value of varieties at the sixth cut of a simulated grazing management in national list variety trials.