Cone index

Design, development and evaluation of zero-till-slit seed drill were carried out in ricewheat crop rotation. The field performance of the zero-till-slit seed drill was evaluated and compared to the combined tillage and seeding equipment, zero-till seed drill, roto-till seed drill, strip-till seed drill and improved conventional seed drill, The field experiment was carried out following the statistically designed slit drill was with split-split-split plot design.

18p nguathienthan2 26-12-2019 12 2   Download

Availability of draft requirement data of primary and secondary tillage implement is necessary to implement selection, tractor- implement matching and determination of fuel consumption for different tillage systems. In this research, pull type load cell was along with an auxiliary tractor was used to determine the draft requirement of selected tillage implement. It was observed that the draft requirement of Mb plough was maximum at 619 kgf compared to disc plough, disc harrow and cultivator. The draft effecting soil parameters were also determined.

7p chauchaungayxua1 04-12-2019 10 0   Download

Penetration resistance (PR) is an important property of soils, and can be expressed as cone index (CI). Because of high variability, there are no accurate and representative PR data in most cases. Variable PR is considerably affected by gravimetric soil water content (GWC) and bulk density (BD).

9p aquaman27 15-01-2019 23 1   Download

Fibre Optic Thermometers Properties of Optical Fibres Dielectric opticalfibre, which is also referred to as a light guide, is composed of a rod core surrounded by a sheath as shown in Figure 6.1 . The core, which conducts the electromagnetic wave, has a refractive index, nj , while the sheath, which contains the wave within the core, has a refractive index, n2 . To ensure that the wave is contained in the core it is necessary that the condition nj n2 is satisfied. The electromagnetic waves incident on the front part of the optical fibre, within the angle cone, 2a,...

14p tienvovan 16-09-2010 70 6   Download