Results 41 to 50 of about 220,501 (214)

Soil-plant relationships of magnesium in selected Taranaki yellow-brown loams : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science in Soil Science at Massey University [PDF]

open access: yes, 1976
Best copy available.The exchangeable Mg contents of soils in the Inglewood - New Plymouth area of Taranaki are primarily determined by Mg contents of parent materials.
Shannon, Patrick Wynton
core  

SOILS AND GEOENVIRONMENTS OF THE NATIONAL PARK OF VIRUÁ AND SURROUNDING, RORAIMA: INTEGRATED VISION OF THE LANDSCAPE AND ENVIRONMENTAL SERVICE

open access: yesCiência Florestal, 2013
http://dx.doi.org/10.5902/198050989287The Viruá National Park (PARNA Viruá) occupies 227.011ha, in the region of the low ‘Branco’ river, in Roraima state.
Bruno Araujo Furtado de Mendonça   +6 more
doaj   +1 more source

A Rhizogenic Biostimulant Effect on Soil Fertility and Roots Growth of Turfgrass

open access: yesAgronomy, 2021
The excessive use of chemical fertilizers can lead to severe environmental damages. In recent decades, the application of biostimulants to improve soil composition and stimulate plant growth has contributed significantly to environmental preservation. In
Salima Yousfi   +4 more
doaj   +1 more source

Effects of clayish and sandy soils on the growth of Prosopis argentina and P. alpataco seedlings

open access: yesEcología Austral, 2000
Prosopis alpataco Burk. and P. argentina Phil. occupy areas with different soil characteristics within the arid zone of Argentina. Prosopis alpataco occurs in periodically flooded, clayish and saline soils, whereas P. argentina occurs in non-saline sand
Pablo E. Villagra, Juan B. Cavagnaro
doaj  

Adsorption-desorption and degradation of colistin in soils under aerobic conditions

open access: yesEcotoxicology and Environmental Safety, 2022
Colistin has broad-spectrum activity against Gram-negative bacteria and has been considered as the last-resort treatment for multiantibiotic-resistant Gram-negative bacteria infections in human.
Lijuan Peng   +3 more
doaj   +1 more source

Liquefaction of Sandy Soils

open access: yes, 1982
A  review  of  the  most recent states-of-the-art allows a comprehensive revision of the questions involved in the major problems of liquefaction. Exact and simplified procedures of determining the liquefaction potential are revised. The question of induction and dissipation of pore pressures is dealt with.
openaire   +2 more sources

Comparison of indices for the prediction of nitrogen mineralization after destruction of managed grassland [PDF]

open access: yes, 2010
Intensively managed grasslands are occasionally chemically killed with herbicide and ploughed in order to grow an arable crop. After this management, large N mineralization rates with large losses to the environment are commonly observed.
Smit, A., Velthof, G.L.
core   +2 more sources

Fertility and suitability of the Spodosols formed on sandy beach ridges interspersed with Swales in the Kelantan - Terengganu Plains of Malaysia for kenaf production. [PDF]

open access: yes, 2011
A study was conducted to evaluate the suitability of sandy soils in the Kelantan - Terengganu Plains (Peninsular Malaysia) and suggest measures to improve their fertility for kenaf production.
Abdul Rahim, Anuar   +3 more
core  

Decay of escherichia coli in soil following the application of biosolids to agricultural land [PDF]

open access: yes, 2007
The decay of Escherichia coli in a sandy loam soil, amended with enhanced and conventionally treated biosolids, was investigated in a field experiment following spring and autumn applications of sewage sludge.
ADAMS M. R.   +12 more
core   +1 more source

EFFECT OF GRADING OF SANDY SOIL ON STRENGTH OF CEMENT TREATED SANDY SOIL

open access: yesDoboku Gakkai Ronbunshu, 1992
セメントを安定材に用いた事前混合処理土の強度は, セメントの種類とその添加率のみならず, 処理対象土の種類, 細粒分含有率によっても変化する. 本文は, それらの原因を明らかにするため, 粒度を調整した山砂事前混合処理土の強度とその粒子間隙におけるセメント水和物の架橋状況, さらに水セメント比が変化した場合の粒度の影響を検討した. その結果, 処理対象土の粒度が, 事前混合処理土の強度に影響を及ぼすのは, 貧配合の場合に限られること, そして粒子間隙の小さいものほど, セメント水和物の架橋が密であり, 事前混合処理土の強度が増大することなどを明らかにした.
Tsugumasa ITO, Yukikazu TSUJI
openaire   +2 more sources

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