نتایج جستجو برای: cropping system in kerman

تعداد نتایج: 17308762  

2016
Jiashu Chu Tianzhe Zhang Weidong Chang Dan Zhang Saman Zulfiqar Aigen Fu Yaqi Hao

The effect of cropping system on the distribution of organic carbon (OC) and nitrogen (N) in soil aggregates has not been well addressed, which is important for understanding the sequestration of OC and N in agricultural soils. We analyzed the distribution of OC and N associated with soil aggregates in three unfertilized cropping systems in a 27-year field experiment: continuously cropped alfal...

2015
Sarah K. Hargreaves Ryan J. Williams Kirsten S. Hofmockel Eiko Eurya Kuramae

Plant and soil properties cooperatively structure soil microbial communities, with implications for ecosystem functioning. However, the extent to which each factor contributes to community structuring is not fully understood. To quantify the influence of plants and soil properties on microbial diversity and composition in an agricultural context, we conducted an experiment within a corn-based a...

Journal: :پژوهش های حبوبات ایران 0
احمد نظامی عبدالرضا باقری مرتضی عظیم زاده علی اکبر محمودی علی بزرگمهر

long term use of fallow in wheat-based cropping system of dry and semi-dry lands can increase erosion and decrease soil fertility. legumes as substituting crops for fallow could improve sustainability in this area. this study was conducted to evaluate the substituting of some legumes for fallow in a 2-yr wheat rotation at research stations in north khorasan province (natural resources research ...

2018
Kyle Hartman Marcel G A van der Heijden Raphaël A Wittwer Samiran Banerjee Jean-Claude Walser Klaus Schlaeppi

BACKGROUND Harnessing beneficial microbes presents a promising strategy to optimize plant growth and agricultural sustainability. Little is known to which extent and how specifically soil and plant microbiomes can be manipulated through different cropping practices. Here, we investigated soil and wheat root microbial communities in a cropping system experiment consisting of conventional and org...

Journal: :علوم گیاهان زراعی ایران 0
حمید نجفی نژاد دانشجوی دکتری، گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران زین العابدین طهماسبی سروستانی دانشیار گروه زراعت دانشکده کشاورزی دانشگاه تربیت مدرس سید علی محمد مدرس ثانوی استاد گروه زراعت، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران

to study the effects of two irrigation regimes and application of barley residue, zeolite and superabsorbent polymer on forage yield and some physiological traits of maize and sorghum, an experiment was conducted over two years in kerman, iran. a randomized complete block design arranged in a factorial split was used with three replications. two irrigation regimes of normal irrigation and water...

2012
K. Waha C. Müller A. Bondeau J. P. Dietrich P. Kurukulasuriya J. Heinke H. Lotze

Multiple cropping systems provide more harvest security for farmers, allow for crop intensification and furthermore influence ground cover, soil erosion, albedo, soil chemical properties, pest infestation and the carbon sequestration potential. We identify the traditional sequential cropping systems in ten sub-Saharan African countries from a survey dataset of more than 8600 households. We find...

2017
Qingfeng Meng Hongfei Wang Peng Yan Junxiao Pan Dianjun Lu Zhenling Cui Fusuo Zhang Xinping Chen

The food supply is being increasingly challenged by climate change and water scarcity. However, incremental changes in traditional cropping systems have achieved only limited success in meeting these multiple challenges. In this study, we applied a systematic approach, using model simulation and data from two groups of field studies conducted in the North China Plain, to develop a new cropping ...

Journal: :Remote Sensing 2015
Betty Mulianga Agnès Bégué Pascal Clouvel Pierre Todoroff

Over the recent past, there has been a growing concern on the need for mapping cropping practices in order to improve decision-making in the agricultural sector. We developed an original method for mapping cropping practices: crop type and harvest mode, in a sugarcane landscape of western Kenya using remote sensing data. At local scale, a temporal series of 15-m resolution Landsat 8 images was ...

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