Sentence examples for of surface compaction from inspiring English sources
Treatments consisted of two levels of surface compaction (0 and 2 passes with a filled water wagon) and four rates (0, 4.8, 9.6 and 16 Mg ha−1) of turkey litter in a split block design with four replications.
The objectives of this study were (i) to determine the effects of surface compaction and poultry litter on soil bulk density, penetrometer resistance and soil water content in a claypan soil and (ii) to compare the use of several types of currently available soil cone penetrometers to detect and manage compaction.
Treatments consisted of two levels of surface compaction (0 and 2 passes of a filled water wagon with an axle load of 2.9 Mg) and two rates (0 and 15.4 Mg ha−1 per year) of incorporated turkey litter in a split block design with four replications.
The objectives of this study were to determine the first year and residual effects of surface compaction on soil physical properties, crop yield, and N availability in a claypan soil; and to evaluate the use of poultry litter to manage surface compaction.
Infiltration equations obtained from infiltration tests following previous water application events account for the effect of soil surface compaction and are recommended for design and management of centre-pivot systems.
The surface compaction of the PMMA as a result of the irradiation for doses up to 160 nC/mm2 was also investigated.
Surface compaction decreased soil inorganic N regardless of whether it received turkey litter.
There was no sign of near-surface compaction in the control.
The latter studies mentioned above did not include basic measurements of the effects of ORD on soil physical conditions, such as sub-surface compaction.
The control soil in these plots had near-surface compaction (crusting) at a depth of between about 5 and 11 cm.
The main findings at a tyre pressure of 0.8 bar were (Fig. 7a): The control soil in these plots had near-surface compaction (crusting) at a depth of between about 5 and 11 cm.
