نتایج جستجو برای: wheat and cottonsequential cropping

تعداد نتایج: 16841970  

In order to investigate the effect of supplementary irrigation on dryland wheat cultivars, an experiment was conducted as a factorial in randomized complete block design with three replications during cropping seasons 2016-2017 and 2017-2018. The factors were drought stress levels (dryland and supplemental irrigation) and wheat cultivars (Homa, Sardari, Rijaw, Ouhadi and Azar2). Supplemental ir...

Ashraf Alizadeh Amraie, Hamdollah Eskandari,

A field experiment was conducted to evaluate the effect of planting pattern and irrigation system on antioxidant activity of wheat and Persian clover. The experiment was carried out as a two-factor factorial with three replications. The first factor was irrigation system (conventional and partial root-zone irrigation) and the second was planting pattern (sole wheat, sole Persian clover, alterna...

2009
Richard W. Smiley Stephen Machado

Rainfed wheat (Triticum aestivum L.) is planted each year on 1.5 million ha in the low-precipitation region (150 to 300 mm) of north-central Oregon and south-central Washington. Precipitation occurs mostly (75%) from late autumn (October) to early spring (April) and the amount is highly variable from year to year. Winters are cold and intervals of frozen soil are common. Warm to hot days and co...

2017
Sandra Granzow Kristin Kaiser Bernd Wemheuer Birgit Pfeiffer Rolf Daniel Stefan Vidal Franziska Wemheuer

Many bacteria and fungi in the plant rhizosphere and endosphere are beneficial to plant nutrient acquisition, health, and growth. Although playing essential roles in ecosystem functioning, our knowledge about the effects of multiple cropping regimes on the plant microbiome and their interactions is still limited. Here, we designed a pot experiment simulating different cropping regimes. For this...

2015
Upendra M Sainju Brett L Allen Thecan Caesar-TonThat Andrew W Lenssen

Information on the effect of long-term management on soil nutrients and chemical properties is scanty. We examined the 30-year effect of tillage frequency and cropping sequence combination on dryland soil Olsen-P, K, Ca, Mg, Na, SO4-S, and Zn concentrations, pH, electrical conductivity (EC), and cation exchange capacity (CEC) at the 0-120 cm depth and annualized crop yield in the northern Great...

2014
Liqun Zhu Naijuan Hu Minfang Yang Xinhua Zhan Zhengwen Zhang

Soil management practices, such as tillage method or straw return, could alter soil organic carbon (C) contents. However, the effects of tillage method or straw return on soil organic C (SOC) have showed inconsistent results in different soil/climate/cropping systems. The Yangtze River Delta of China is the main production region of rice and wheat, and rice-wheat rotation is the most important ...

Journal: :به نژادی گیاهان زراعی و باغی 0
سمیرا آقایی کارشناسی ارشد، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهید باهنر کرمان، کرمان ، ایران عنایت‏ اله توحیدی ‏نژاد استادیار، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه شهید باهنر کرمان، کرمان، ایران مهدی نصراصفهانی دانشیار، بخش گیاه‏پزشکی، مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان، اصفهان، ایران

in order to evaluate some morphological traits of durum wheat genotypes, 18 elite lines selected from advanced regional durum wheat yield trials. these materials along, with two checks dena (durum wheat) and parsi (bread wheat) were examined using rcb design with three replications at isfahan research station in two consecutive cropping season. during the cropping season some trials such as the...

2007
Stephen Machado Steve Petrie Annie Qu

Conventional tillage winter wheat (Triticum aestivum) (WW)–summer fallow reduces soil productivity and increases soil erosion. Conservation tillage management, together with intensive cropping may have the potential to reverse these sustainability concerns. The objective of this study was to determine the effects of conventional tillage (CT) and no-tillage (NT) systems on grain yield of long-te...

2004
F. L. Young M. E. Thorne

Weed management is an important consideration in implementing new cropping systems. In the semi-arid region of the Pacific Northwest, grower interest is increasing in no-till spring cropping systems because of wind erosion from traditional winter wheat Triticum aestivum L./dust-mulch fallow (WWF). However, no-till represents a major shift in production practices and is likely to produce new wee...

2017
S.K. Samal K.K. Rao S.P. Poonia Rakesh Kumar J.S. Mishra Ved Prakash S. Mondal S.K. Dwivedi B.P. Bhatt Sushanta Kumar Naik Anup Kumar Choubey V. Kumar R.K. Malik Andrew Mc Donald

In the context of deteriorating soil health, stagnation of yield in rice-wheat cropping system (RWCS) across Indo- Gangetic plains (IGP) and environmental pollution, a long term field experiment was conducted during 2009-2016 taking four crop scenarios with conservation agriculture (CA), crop intensification and diversified cropping as intervening technology aiming to evaluate the sustainabilit...

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