نتایج جستجو برای: tillage systems

تعداد نتایج: 1187788  

2004
D. W. Reeves

Maintenance and improvement of soil quality in continuous cropping systems is critical to sustaining agricultural productivity and environmental quality for future generations. This review focuses on lessons learned from long-term continuous cropping experiments. Soil organic carbon (SOC) is the most often reported attribute from long-term studies and is chosen as the most important indicator o...

2004
Alvaro Pires da Silva Silvia Imhoff Beverley Kay

Roots may respond to restrictive soil physical conditions and send signals to shoots to control plant growth. Soil mechanical resistance and aeration can be managed to improve the soil physical conditions for plant growth by using different tillage systems. The objective of this study was to quantify the influence of no-tillage and conventional-tillage systems on plant response to soil mechanic...

Journal: :علوم گیاهان زراعی ایران 0
عبدالواحد هودیانی دانشجوی کارشناسی ارشد آگرواکولوژی، گروه زراعت، دانشکدة کشاورزی، دانشگاه زابل مهدی دهمرده استادیار، گروه زراعت، دانشکدة کشاورزی، دانشگاه زابل عیسی خمری استادیار، گروه زراعت، دانشکدة کشاورزی، دانشگاه زابل محمد رضا اصغری پور دانشیار گروه زراعت، دانشکدة کشاورزی، دانشگاه زابل

a field experiment was conducted at research station of zabol university in 2012. the experiment carried out as split plot on basis of a randomized complete block design with three replications. the main and sub factors included tillage systems (no, reduced, and conventional tillage) and planting ratios of intercropping (pure culture of roselle, pure culture of green gram, 25% roselle + 75% gre...

2004
Xinhua Yin

NT will reduce soybean grain yields and economic returns, particularly during the first few years of adoption. Farmers have been encouraged to adopt no-tillage (NT) because Soybean grain yield response to NT systems depends of its positive environmental effects compared with other conservation tillage systems. Nevertheless, poor crop performance under NT manmainly upon soil drainage and previou...

2014

Methods In 2013, ISU FARM conducted two trials in Pottawattamie County that investigated the effect of various tillage systems on soybean grain yield. In Trial 1, a fall vertical tillage system and a fall disking were compared with a no-till system. In Trial 2, a fall vertical tillage system was compared with no-till. Vertical tillage systems are marketed as systems that lightly till the soil w...

A. Gholami, E. Zeinali H.R. Asgari

This research delves into investigating the effects of different soil management practices on soil physical properties, yield and yield’s components of irrigated wheat. This experimental design was administered in the form of the nested testing with three treatments (no tillage, low tillage and conventional tillage) and three replicates in some of the farmlands of Chenran Township. The results ...

Journal: :پژوهش های زراعی ایران 0

introduction phosphorus (p) is an essential element in crop nutrition, which can be growth limiting or an environmental contaminant, if present in excess. on the other hand, tillage practices have a direct effect on behavior and availability of soil p. since, application of different tillage methods lead to different patterns of soil phosphorus distribution, hence p fertilizer needs and p avail...

2005
Mark A. Licht Mahdi Al-Kaisi

The no-tillage system is perceived as having lower soil temperatures, wetter soil conditions, and greater surface penetration resistance compared with conventional and other conservation tillage systems. Concerns associated with the effect of the no-tillage system on certain soil physical properties (i.e. soil temperature, moisture, and compaction) prompted this study to evaluate the effect of ...

Journal: :Journal of environmental quality 2005
Mahdi M Al-Kaisi Xinhua Yin

Soil C change and CO2 emission due to different tillage systems need to be evaluated to encourage the adoption of conservation practices to sustain soil productivity and protect the environment. We hypothesize that soil C storage and CO2 emission respond to conservation tillage differently from conventional tillage because of their differential effects on soil properties. This study was conduct...

Journal: :به زراعی کشاورزی 0
حمیدرضا چقازردی دانشجوی سابق دکتری گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران محمدرضا جهانسوز استاد گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران علی احمدی استاد گروه زراعت، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران منوچهر گرجی دانشیار گروه خاکشناسی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

in order to study of no-tillage, reduced tillage and conventional tillage systems on some soil physical properties, yield and some traits of wheat and chickpea, experiments were perfumed across two years in sarpolezahab’s dryland region.results of combined analysis of variance indicated that different tillage systems had significant effects (p≥0.01) on seed yield, volumetric soil moisture, bulk...

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