Results 271 to 280 of about 70,208 (311)

Response of no‐tillage and conventional‐tillage cotton to starter fertilization on loess soils

Journal of Plant Nutrition, 1997
Abstract Starter fertilizers have been utilized to improve cotton (Gossypium hirsutum L.) yields, but yield increases have differed with soil type, application method, application rates, and tillage. Starter fertilizer tests were conducted from 1991 through 1993 on a Gigger silt loam (Typic Fragiudalf) in Louisiana and on a Loring silt loam soil (Typic
R. L. Hutchinson, D. D. Howard
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Effects of Conventional Tillage and Conservation Tillage on Soil Organic Carbon

Advanced Materials Research, 2013
For the last decades, because of increasing attention to global change, the carbon cycle in the terrestrial ecosystem has become a hotspot problem for every country. It has 1.6 Pg/a C to release into atmosphere because of the irrational land-use, quickening the step of global warming trend. But agricultural soil has the double-sword effects.
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SOIL MICROARTHROPODS IN LONG-TERM NO-TILLAGE AND CONVENTIONAL TILLAGE CORN PRODUCTION

Canadian Journal of Soil Science, 1990
Cultivation is known to reduce the number and diversity of microarthropod (Acarina and Collembola) populations from levels observed under natural forest or grassland vegetation. Under no-tillage crop production, the soil remains relatively undisturbed and plant litter decomposes at the soil surface, much like in natural soil ecosystems.
J. P. WINTER, R. P. VORONEY, D. A. AINSWORTH   +2 more
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Allelochemicals in soil from no-tillage versus conventional-tillage wheat (Triticum aestivum) fields

Journal of Chemical Ecology, 1990
Putative allelochemicals found in the soil of no-tillage and conventional-tillage wheat plots near Stillwater, Oklahoma, were obtained by a mild alkaline aqueous extraction procedure, bioassayed to determine their biological activity, purified, and analyzed with a capillary gas chromatography-mass spectrometry-data analysis system. The most significant
K G, Cast, J K, McPherson, A J, Pollard, E G, Krenzer, G R, Waller   +4 more
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Nitrification and Denitrification in Conventional and No‐Tillage Soils

Soil Science Society of America Journal, 1985
Abstract Nitrification and denitrification were studied over the course of a year in conventional and no‐tillage agroecosystems. Soils were sampled monthly at three depths (0–5 cm, 5–13 cm, 13–21 cm). Nitrification was quantified by measuring nitrite (NO − 2
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Population Dynamics of Weeds in No-Tillage and Conventional Crop Systems

Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes, 2005
Population dynamics of weeds in successive maize and bean crops were evaluated in two soil management systems (conventional and no-tillage), for two maize applications (grain and silage), and in four consecutive growing seasons. Every year, conventional tillage consisted in plowing and harrowing before sowing.
Aroldo Ferreira Lopes, Machado, Adriano, Jakelaitis, Lino Roberto, Ferreira, Ernani Luiz, Agnes, Leonardo David Tuffi, Santos   +4 more
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Effect of no‐tillage vs. conventional tillage on soil organic matter and nitrogen contents

Communications in Soil Science and Plant Analysis, 1987
Abstract Four treatments (no‐tillage plus subsoiling, no‐tillage, conventional tillage plus subsoiling, and conventional tillage) were continuously in place for 6 yr and a second set of no‐tillage plus subsoiling and conventional plus subsoiling treatments were continuously in place for 3 yr to study the long‐term effects of conventional and no‐tillage
Raymond N. Gallaher, Maglene B. Ferrer
exaly   +2 more sources

Chlorimuron Adsorption, Desorption, and Degradation in Soils from Conventional Tillage and No‐Tillage Systems

Journal of Environmental Quality, 1995
AbstractNo‐tillage (NT) and other conservation management practices designed to enhance plant residue accumulation can affect the herbicides fate in soil. This study was designed to evaluate adsorption, desorption, and degradation of chlorimuron {ethyl 2‐[[[[(4‐chloro‐6‐methoxy‐2‐pyrimidinyl)amino]carbonyl]amino] sulfonyl]benzoic acid} in soils ...
Krishna N. Reddy, Robert M. Zablotowicz, Martin A. Locke   +2 more
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Double Cropping Systems Involving No‐Tillage and Conventional Tillage¹

Agronomy Journal, 1973
AbstractThis study was prompted by the huge feed grain deficits which increase annually in the Southeast. The need exists to find ways of increasing grain production efficiently. Cropping‐tillage systems designed to accomplish this were studied. Soybeans [Glycine max (L.) Merr.] and grain sorghum [Sorghum bicolor (L.) Moench.] were double cropped ...
J. O. Sanford, D. L. Myhre, Norman C. Merwine   +2 more
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Wheel Traffic Placement Effects on Corn Response under No‐Tillage and Conventional Tillage

Journal of Production Agriculture, 1996
Although previous studies on the Del‐Mar‐Va peninsula have indicated that vehicular wheel traffic from small scale farm equipment (<5 tons/axle) does not result in soil conditions considered detrimental to plant growth under no‐tillage (NT) and conventional tillage (CT) management, farmers are still concerned that decreased plant response and ...
T. Tsegaye, R. L. Hill
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