نتایج جستجو برای: relay cropping

تعداد نتایج: 27540  

2018
Confidence Duku Sander J Zwart Lars Hein

In recent decades, there have been substantial increases in crop production in sub-Saharan Africa (SSA) as a result of higher yields, increased cropping intensity, expansion of irrigated cropping systems, and rainfed cropland expansion. Yet, to date much of the research focus of the impact of climate change on crop production in the coming decades has been on crop yield responses. In this study...

اصغری, جعفر, سمیع زاده, حبیبالله , محسن آبادی, غلام‌رضا, مرادی, پرستو ,

In order to evaluate the benefits of maize, pinto bean and naked pumpkin triple cropping, an experiment was carried out as a randomized complete block design with three replications at Faculty of Agricultural Science, University of Guilan, Rasht, Iran in 2012. The treatments consisted of maize, pinto bean and naked pumpkin sole cropping (100, 75 and 50% of conventional densities), maize – pinto...

Journal: :The Science of the total environment 2007
Jorge Alvaro-Fuentes José Luis Arrúe Ricardo Gracia María Victoria López

During decades, in semiarid rainfed Aragon, intensive soil tillage and low crop residue input have led to the loss of soil structure and soil degradation. Conservation tillage and cropping intensification can improve soil structure in these areas. The objective of this study was to determine the influence of three different tillage systems (traditional tillage, reduced tillage and no-tillage) u...

2014
Mingna Chen Xiao Li Qingli Yang Xiaoyuan Chi Lijuan Pan Na Chen Zhen Yang Tong Wang Mian Wang Shanlin Yu

Plant health and soil fertility are affected by plant-microbial interactions in soils. Peanut is an important oil crop worldwide and shows considerable adaptability, but growth and yield are negatively affected by continuous cropping. In this study, 16S rRNA gene clone library analyses were used to study the succession of soil bacterial communities under continuous peanut cultivation. Six libra...

Journal: :Field Crops Research 2022

While agroforestry is a well-established approach for agroecological intensification, rice less often integrated with trees than other annual staple crops. The benefits and risks from practices have not been systematically explored. Considering the need strategies that may address low fertility high degradation of arable soils contribute to smallholder farm productivity, livelihoods climate res...

2013
Luo Liu Xinliang Xu Dafang Zhuang Xi Chen Shuang Li

The multiple cropping practice is essential to agriculture because it has been shown to significantly increase the grain yield and promote agricultural economic development. In this study, potential multiple cropping systems in China are calculated based on meteorological observation data by using the Agricultural Ecology Zone (AEZ) model. Following this, the changes in the potential cropping s...

2012
LI Peng FENG Zhiming LIU Yujie XIAO Xiangming

Rice cropping systems not only characterize comprehensive utilization intensity of agricultural resources but also serve as the basis to enhance the provision services of agro-ecosystems. Yet, it is always affected by external factors, like agricultural policies. Since 2004, seven consecutive No.1 Central Documents issued by the Central Government have focused on agricultural development in Chi...

Journal: :Journal of environmental quality 2007
Jennifer H Davis Stephen M Griffith William R Horwath Jeffrey J Steiner David D Myrold

Riparian ecosystems, through their unique position in the agricultural landscape and ability to influence nutrient cycles, can potentially reduce NO3 loading to surface and ground waters. The purpose of this study was to determine the fate of NO3 in shallow groundwater moving along a lateral flowpath from a grass seed cropping system through an undisturbed mixed-species herbaceous riparian area...

2015
Kazuyuki Mori Kenji Asano Seiji Tamiya Takashi Nakao Motoyuki Mori

The potato (Solanum tuberosum L.) is cultivated all year round in Japan by using four types of cropping: summer and winter croppings, and double cropping in spring and fall. In each cropping season, growth conditions such as temperature, day length, and growing period, differ drastically; thus, different cultivars adapted to each environment are required. Breeding stations are located in both s...

Journal: :Journal of nematology 1973
J M Good W S Murphy B B Brodie

During a 6-year study of 1-, 2-, and 3-year crop rotations, population densities of Pratylenchus brachyurus, Trichodorus christiei, and Meloidogyne incognita were significantly affected by the choice of crops but not by length of crop rotation. The density of P. brachyurus and T. christiei increased rapidly on milo (Sorghum vulgate). In addition, populations of P. brachyurus increased significa...

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