Results 21 to 30 of about 1,840,993 (286)

‘Soil conditions and plant growth’ [PDF]

Plant, Cell & Environment, 2002
AbstractPlants can respond to soil conditions in ways that can not readily be explained in terms of the ability of the roots to take up water and nutrients. Roots may sense difficult conditions in the soil and thence send inhibitory signals to the shoots which harden the plants against the consequences of a deteriorating or restrictive environment ...
openaire   +2 more sources

freeze-thaw cycle, seasonal frozen soil, geogrid, reinforced characteristic

Yantu gongcheng xuebao, 2019
The soils are a transfer medium between supporting force of excavation face and earth pressure of soil chamber, and their performance directly affect the control of earth pressure of soil chamber, the supporting force of excavation faces, and the ...
XIAO Chao 1,2,3, TAN Li-xin 2,3, CHEN Ren-peng 1, ZHONG Zhi-quan 2,3, YANG Jun-sheng 4
doaj   +1 more source

[United States Soil Survey Report]

, 1988
Map displays soil types along with creeks, towns, schools, churches, power transmission lines, oil and gas pipelines, roads, and railroads.
Texas Agricultural Experiment Station, United States. Soil Conservation Service., Texas State Soil and Water Conservation Board   +2 more
core   +3 more sources

Optimization and Field Validation of Soil Conditioning Scheme for EPB Shield Tunneling in Cobble–Boulder Stratum: Case Study on Beijing Metro Line 16

Buildings
As laboratory experiments evaluating soil strata conditioning schemes for earth pressure balance shield (EPBS) tunneling are limited by the size of the test equipment, large pebbles and boulders are typically replaced by an equal mass of smaller pebbles (
Zhiyong Yang, Xiaokang Shao, Zhe Liu, Zhiqiang Bai, Yusheng Jiang   +4 more
doaj   +1 more source

Yield increase of corn inoculated with Pseudomonas thivervalensis strain SC5 in Brazil [PDF]

Ciência Rural
: Previous research has demonstrated the ability of isolate Pseudomonas thivervalensis SC5 to express the enzyme 1-aminocyclopropane-1-carboxylate deaminase (ACC), which regulates ethylene levels, one of the most important phytohormones in the regulation
Edenilson Meyer, Admir José Giachini
doaj   +1 more source

Experimental Study on the Soil Conditioning Materials for EPB Shield Tunneling in Silty Sand

Advances in Civil Engineering, 2020
Earth pressure balance (EPB) shield tunneling in a silty sand stratum is frequently faced with the wear of rotary cutter disc, clogging, or even collapse of workface due to its noncohesive and discrete properties of silty sand material. Soil conditioning
Chi-Hao Cheng, Shao-Ming Liao, Xiao-Bo Huo, Li-Sheng Chen   +3 more
doaj   +1 more source

Plant secondary metabolite-dependent plant-soil feedbacks can improve crop yield in the field

eLife, 2023
Plant secondary metabolites that are released into the rhizosphere alter biotic and abiotic soil properties, which in turn affect the performance of other plants.
Valentin Gfeller, Jan Waelchli, Stephanie Pfister, Gabriel Deslandes-Hérold, Fabio Mascher, Gaetan Glauser, Yvo Aeby, Adrien Mestrot, Christelle AM Robert, Klaus Schlaeppi, Matthias Erb   +10 more
doaj   +1 more source

A Rapid Experimental Procedure to Assess Environmental Compatibility of Conditioning Mixtures Used in TBM-EPB Technology

Applied Sciences, 2020
Earth Pressure Balance (EPB) Tunnel Boring Machines (TBM) are currently the most widely used machines to perform tunnel excavation, particularly in urban areas.
Irene Bavasso, Giorgio Vilardi, Diego Sebastiani, Anita Di Giulio, Marta Di Felice, Andrea Di Biase, Salvatore Miliziano, Luca Di Palma   +7 more
doaj   +1 more source

Factorial Experiments of Soil Conditioning for Earth Pressure Balance Shield Tunnelling in Water-Rich Gravel Sand and Conditioning Effects’ Prediction Based on Particle Swarm Optimization–Relevance Vector Machine Algorithm

Buildings
The high permeability of gravel sand increases the risk of water spewing from the screw conveyor during earth pressure balance (EPB) shield tunnelling.
Xingzhong Nong, Wenfeng Bai, Jiandang Chen, Lihui Zhang   +3 more
doaj   +1 more source

A sexually conditioned switch of chemosensory behavior in C. elegans. [PDF]

PLoS ONE, 2013
In sexually reproducing animals, mating is essential for transmitting genetic information to the next generation and therefore animals have evolved mechanisms for optimizing the chance of successful mate location. In the soil nematode C.
Naoko Sakai, Ryo Iwata, Saori Yokoi, Rebecca A Butcher, Jon Clardy, Masahiro Tomioka, Yuichi Iino   +6 more
doaj   +1 more source