aI am satisfied with my pay 正在翻译,请等待...[translate] aGardeners who regularly fight chicory, sorrel, and buttercup weeds are probably dealing with the clay soil that attracts these weeds. 通常与苦苣生茯战斗的花匠,栗色和毛茛杂草大概涉及吸引这些杂草的黏土土壤。[translate]...
Earth scientists define soil as a collection of weathered rocks with some decayed organic matter added. It can take as many as a thousand years to form one inch of soil. Soil is made up of varying amounts of sand, silt and clay. The soil components affect the ability of the soil to ...
更多“() engineering is a civil engineering branch dealing with soil or rock under structures.”相关的问题 第1题 Under the Earth's topsoil, at various levels, sometimes under a layer of rock, there am deposits of clay. Look at cuts where highways have been built to see exposed clay beds...
EFFECT OF NITROGEN, PHOSPHORUS AND POTASSIUM LEVELS AND FOLIAR SPRAY WITH CITRIC AND SALICYLIC ACIDS ON GROWTH, YIELD AND FRUIT QUALITY OF TOMATO PLANTS beside sprayed with water (control) on growth, yield and fruit quality of tomato cv.186 grown in clay soil conditions and using drip irrigation...
Irrigation with used low quality water in arid and semiarid regions may damage soil structure due to clay dispersion. We investigated water retention of mo... MM Afimad,J Karube - 《Transactions of the Japanese Society of Irrigation Drainage & Reclamation Engineering》 被引量: 0发表: 2006年 ...
Based on the engineering tests,the stress,pore water pressure and effective depth range of treating soft foundation with vacuum preloading are analyzed.The... SL Li - 《Rock & Soil Mechanics》 被引量: 28发表: 2008年 Mechanism of vacuum preloading Based upon the achievements of study on vacuum...
and China. In the: Harbin area, the surface soil consists of silt containing about 20% clay, but lower layers 15 m below the surface are composed of fine sand which was deposited by old floods of the Songhua Jiang. The level of ground water is usually 80-90 cm from the surface, but...
The present study aimed to deal with these two problems using a case study of soil pH and particle fractions (i.e., sand, silt and clay) in Hong Kong. Based on 133 topsoil samples collected in an urban and pen-urban mixed area of Hong Kong, robust estimators for spatial variogram were...
mountain gorilla - geophagy - secondary plant compounds - clay mineralsGeophageous Rwandan mountain gorillas excavate and eat weathered leucite-rich regolith (subsoil C horizons) from the slopes of Mount Visoke in the Virunga Mountains. In the months of the dry season, the gorillas reportedly ...
Research institutions dealing with cold regions science and technology in Harbin, Heilongjiang province of Chinadoi:10.1016/0165-232X(83)90050-2DaisukeKuroiwaSDOSCold Regions Science & Technology