نتایج جستجو برای: no tillage

تعداد نتایج: 3302244  

2010
U. Zaher

Decisions about reducing agricultural land tillage to offset global warming potential (GWP) are based on the evaluation of the agricultural eco-system and the profitability to local farms. Carbon sequestration and nitrous oxide emissions from winter wheat (WW) cropping were evaluated by modeling typical dryland cropping systems in eastern Washington. Variations in rainfall, tillage intensity an...

A. Woźniak M. Soroka

This study was aimed at analyzing the yield, grain quality and weed infestation of spring triticale sown in 3 tillage systems: a) conventional tillage (CT)-shallow ploughing and harrowing after harvest of the previous crop, ploughing in the autumn; b) reduced tillage (RT)-only cultivator after harvest of the previous crop, and c) no-tillage (NT)-only glyphosate (360 g L-1) after harvest of ...

Journal: :Carbon Balance and Management 2007
Zhengxi Tan Shuguang Liu Zhengpeng Li Thomas R Loveland

BACKGROUND Tillage practices greatly affect carbon (C) stocks in agricultural soils. Quantification of the impacts of tillage on C stocks at a regional scale has been challenging because of the spatial heterogeneity of soil, climate, and management conditions. We evaluated the effects of tillage management on the dynamics of soil organic carbon (SOC) in croplands of the Northwest Great Plains e...

2013
J. P. Garcia Charles S. Wortmann Martha Mamo Rhae A. Drijber David Tarkalson C. S. Wortmann M. Mamo D. Tarkalson

Stratification of nutrient availability, especially of P, that develops with continuous no-till (NT) can affect runoff nutrient concentration and possibly nutrient uptake. The effects of composted manure application and one-time tillage of NT on the distribution of soil chemical properties, root colonization by arbuscular mycorrhizae (AM), and plant P uptake were determined. Research was conduc...

Journal: :تحقیقات مهندسی کشاورزی 0
محمد خرمیان دانشجوی دوره دکتری دانشگاه شهید چمران اهواز و عضو هیئت علمی بخش تحقیقات فنی و مهندسی، دزفول، مرکز تحقیقات کشاورزی و منابع طبیعی صفی آباد سعید برومند نسب استاد دانشگاه شهید چمران، اهواز، دانشکده مهندسی آب فریبرز عباسی دانشیار پژوهش مؤسسه تحقیقات فنی و مهندسی کشاورزی سیدرضا اشرفی زاده استادیار پژوهش بخش تحقیقات فنی و مهندسی، دزفول، مرکز تحقیقات کشاورزی و منابع طبیعی صفی آباد

irrigation management, soil tillage method and fertilizer management play important roles in increasing crop yield and water and solute movement in the soil profile. the present research was conducted to study the effects of a no-tillage system and nitrogen fertilizer on the mineral nitrogen movement and soil moisture under optimum irrigation conditions. the study was conducted at safiabad agri...

ژورنال: علوم آب و خاک 2015
حمزه‌ئی, جواد, سیدی, محسن,

This experiment was carried out at the Agricultural Research Station of Bu-Ali Sina University to study the effect of different tillage methods on bulk density, yield, and yield components of barley (Hordeum vulgare) cultivars under rainfed conditions. Three levels of tillage (CT: conventional tillage, MT: minimum tillage and NT: no tillage) and five barely cultivars (V1: Local V2: AbidarV3: ...

2002
J. N. Shaw

Coarse-textured surface horizons are common in highly weathered southeastern US coastal plain soils. These soils have historically been managed under conventional tillage practices, but conservation tillage management practices are increasing. Although clay (<2 �m) contents are low in these surface horizons (typically <100 g kg−1), the reactive nature of this fraction tends to play a dominant r...

2008
J. D. Jabro U. M. Sainju W. B. Stevens A. W. Lenssen R. G. Evans

1. Abstract Soil tillage is considered one of most important practices in agricultural production due to its influence on physical, chemical, and biological properties of the soil environment. The effect of a long-term tillage [no-till (NT), spring till (ST), and fall and spring till (FST)] was investigated on soil penetration resistance (PR), bulk density (BD), gravimetric water content (GWC) ...

2017
Ziting Wang Tong Li Xiaoxia Wen Yang Liu Juan Han Yuncheng Liao Jennifer M. DeBruyn

Conservation tillage is an extensively used agricultural practice in northern China that alters soil texture and nutrient conditions, causing changes in the soil microbial community. However, how conservation tillage affects rhizosphere and bulk soil fungal communities during plant growth remains unclear. The present study investigated the effect of long-term (6 years) conservation (chisel plow...

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