Multiple Cropping

14,000,000 Leading Edge Experts on the ideXlab platform

Scan Science and Technology

Contact Leading Edge Experts & Companies

Scan Science and Technology

Contact Leading Edge Experts & Companies

The Experts below are selected from a list of 8442 Experts worldwide ranked by ideXlab platform

Umair Ashraf - One of the best experts on this subject based on the ideXlab platform.

  • relay Cropping as a sustainable approach problems and opportunities for sustainable crop production
    Environmental Science and Pollution Research, 2017
    Co-Authors: Shakeel Ahmad Anjum, Mohsin Tanveer, Saddam Hussain, Artemi Cerdà, Umair Ashraf
    Abstract:

    Climate change, soil degradation, and depletion of natural resources are becoming the most prominent challenges for crop productivity and environmental sustainability in modern agriculture. In the scenario of conventional farming system, limited chances are available to cope with these issues. Relay Cropping is a method of Multiple Cropping where one crop is seeded into standing second crop well before harvesting of second crop. Relay Cropping may solve a number of conflicts such as inefficient use of available resources, controversies in sowing time, fertilizer application, and soil degradation. Relay Cropping is a complex suite of different resource-efficient technologies, which possesses the capability to improve soil quality, to increase net return, to increase land equivalent ratio, and to control the weeds and pest infestation. The current review emphasized relay Cropping as a tool for crop diversification and environmental sustainability with special focus on soil. Briefly, benefits, constraints, and opportunities of relay Cropping keeping the goals of higher crop productivity and sustainability have also been discussed in this review. The research and knowledge gap in relay Cropping was also highlighted in order to guide the further studies in future.

  • relay Cropping as a sustainable approach
    Environmental Science and Pollution Research, 2017
    Co-Authors: Mohsin Tanveer, Shakeel Ahmad Anjum, Artemio Cerda Bolinches, Saddam Hussain, Umair Ashraf
    Abstract:

    Climate change, soil degradation, and depletion of natural resources are becoming the most prominent challenges for crop productivity and environmental sustainability in modern agriculture. In the scenario of conventional farming system, limited chances are available to cope with these issues. Relay Cropping is a method of Multiple Cropping where one crop is seeded into standing second crop well before harvesting of second crop. Relay Cropping may solve a number of conflicts such as inefficient use of available resources, controversies in sowing time, fertilizer application, and soil degradation. Relay Cropping is a complex suite of different resource-efficient technologies, which possesses the capability to improve soil quality, to increase net return, to increase land equivalent ratio, and to control the weeds and pest infestation. The current review emphasized relay Cropping as a tool for crop diversification and environmental sustainability with special focus on soil. Briefly, benefits, constraints, and opportunities of relay Cropping keeping the goals of higher crop productivity and sustainability have also been discussed in this review. The research and knowledge gap in relay Cropping was also highlighted in order to guide the further studies in future.

Mohsin Tanveer - One of the best experts on this subject based on the ideXlab platform.

  • relay Cropping as a sustainable approach problems and opportunities for sustainable crop production
    Environmental Science and Pollution Research, 2017
    Co-Authors: Shakeel Ahmad Anjum, Mohsin Tanveer, Saddam Hussain, Artemi Cerdà, Umair Ashraf
    Abstract:

    Climate change, soil degradation, and depletion of natural resources are becoming the most prominent challenges for crop productivity and environmental sustainability in modern agriculture. In the scenario of conventional farming system, limited chances are available to cope with these issues. Relay Cropping is a method of Multiple Cropping where one crop is seeded into standing second crop well before harvesting of second crop. Relay Cropping may solve a number of conflicts such as inefficient use of available resources, controversies in sowing time, fertilizer application, and soil degradation. Relay Cropping is a complex suite of different resource-efficient technologies, which possesses the capability to improve soil quality, to increase net return, to increase land equivalent ratio, and to control the weeds and pest infestation. The current review emphasized relay Cropping as a tool for crop diversification and environmental sustainability with special focus on soil. Briefly, benefits, constraints, and opportunities of relay Cropping keeping the goals of higher crop productivity and sustainability have also been discussed in this review. The research and knowledge gap in relay Cropping was also highlighted in order to guide the further studies in future.

  • relay Cropping as a sustainable approach
    Environmental Science and Pollution Research, 2017
    Co-Authors: Mohsin Tanveer, Shakeel Ahmad Anjum, Artemio Cerda Bolinches, Saddam Hussain, Umair Ashraf
    Abstract:

    Climate change, soil degradation, and depletion of natural resources are becoming the most prominent challenges for crop productivity and environmental sustainability in modern agriculture. In the scenario of conventional farming system, limited chances are available to cope with these issues. Relay Cropping is a method of Multiple Cropping where one crop is seeded into standing second crop well before harvesting of second crop. Relay Cropping may solve a number of conflicts such as inefficient use of available resources, controversies in sowing time, fertilizer application, and soil degradation. Relay Cropping is a complex suite of different resource-efficient technologies, which possesses the capability to improve soil quality, to increase net return, to increase land equivalent ratio, and to control the weeds and pest infestation. The current review emphasized relay Cropping as a tool for crop diversification and environmental sustainability with special focus on soil. Briefly, benefits, constraints, and opportunities of relay Cropping keeping the goals of higher crop productivity and sustainability have also been discussed in this review. The research and knowledge gap in relay Cropping was also highlighted in order to guide the further studies in future.

Tatsuya Inamura - One of the best experts on this subject based on the ideXlab platform.

  • effects of nitrogen mineralization on paddy rice yield under low nitrogen input conditions in irrigated rice based Multiple Cropping with intensive Cropping of vegetables in southwest china
    Plant and Soil, 2009
    Co-Authors: Tatsuya Inamura, Yoshimi Mukai, Akiko Maruyama, Sachiko Ikenaga, Yuhua Xiang, Dakui Qin, Takahisa Amano
    Abstract:

    The farm household responsibility system (FHRS) was adopted in Chinese rural areas during the economic reform in the early 1980s. Since then, many farm households have increased Cropping intensity by using large quantities of nitrogen (N) fertilizers in their responsible fields to increase agricultural income. However, intensive Cropping systems with low N input are still common in remote places of the southwestern region of China. Maintenance and improvement of soil quality in intensive Cropping systems is critical for sustaining agricultural productivity and environmental quality for future generations. The effects of intensive Cropping of vegetables on paddy rice (Oryza sativa L.) yield using small quantities of N fertilizers through N mineralization of paddy soil in irrigated rice-based Multiple Cropping systems were studied in 15 paddy fields in Sichuan Province, China for 3 years. Intensification of vegetable Cropping with negative N balance and removal of vegetable crop residues has greatly decreased total N (TN) contents in paddy soil leading to low levels of effective cumulated soil temperature and thickness of plow layer. As a result, the N mineralization in paddy field during paddy rice growing period was decreased. In addition to the low levels of chemical fertilizer N input and residual mineral N input, the lower level of N mineralization in paddy fields and low N recovery efficiency decreased the amount of N accumulated in aboveground biomass of paddy rice at maturity, resulting in limited rice yields. The amount of mineralized N only correlated with TN (partial correlation analysis). Therefore, in paddy fields with very low N input, the N mineralization in paddy soil during the paddy rice-growing period was the major limiting factor affecting the total yield increases. In addition, a decline in soil fertility can be determined using TN as an indicator. To improve paddy rice yield and avoid soil deterioration, the development and adoption of rational soil management programs are needed. These include input of plant residues, conscientious soil tillage for the maintenance of soil temperature and thickness of the plow layer, and the split application of fertilizer for the improvement of N recovery efficiency.

  • evaluation of site specific management zones on a farm with 124 contiguous small paddy fields in a Multiple Cropping system
    Precision Agriculture, 2008
    Co-Authors: Sachiko Ikenaga, Tatsuya Inamura
    Abstract:

    The identification of homogeneous management zones (MZs) within a field is a basis for site-specific management (SSM). We assessed the method of defining MZs based on the spatio-temporal homogeneity of six soil properties and above-ground biomass data from paddy rice, winter wheat and soybean over 3 years on a farm with 124 contiguous small paddy fields. The soil data were recorded at 372 soil sampling sites on a rectangular grid over the farm. A non-hierarchical cluster analysis was applied to the soil data and the algorithm grouped the sites into three clusters with similar soil properties. These clusters represent soil fertility and soil drainage. The three clusters were not randomly distributed across the fields, but formed contiguous areas associated with landscape position. This was due to the spatial variation of the soil in the study area. We delineated five MZs based on the spatial structure of the soil heterogeneity of the study area. The validity of the MZs was evaluated using the biomass data from paddy rice, winter wheat and soybean in each MZ; this depended mainly on soil fertility when conditions were dry. When the growing season precipitation was greater than the 10-year average, the biomass of winter wheat and soybean depended on soil drainage. This suggested that the delineation of MZs for site-specific management in fields under a paddy-upland crop rotation system should be based on several soil properties. The biomass data from the three crops over 3 years was not effective for delimiting MZs.

Huimin Yan - One of the best experts on this subject based on the ideXlab platform.

  • changes of Multiple Cropping in huang huai hai agricultural region china
    Journal of Geographical Sciences, 2018
    Co-Authors: Huimin Yan, Fang Liu, Zhongen Niu, G U Fengxue, Yanzhao Yang
    Abstract:

    Multiple Cropping index (MCI) is the ratio of total sown area and cropland area in a region, which represents the regional time intensity of planting crops. Multiple Cropping systems have effectively improved the utilization efficiency and production of cropland by increasing Cropping frequency in one year. Meanwhile, it has also significantly altered biogeochemical cycles. Therefore, exploring the spatio-temporal dynamics of Multiple Cropping intensity is of great significance for ensuring food and ecological security. In this study, MCI of Huang-Huai-Hai agricultural region with intensive Cropping practices was extracted based on a Cropping intensity mapping algorithm using MODIS Enhanced Vegetation Index (EVI) time series at 500-m spatial resolution and 8-day time intervals. Then the physical characteristics and landscape pattern of MCI trends were analyzed from 2000–2012. Results showed that MCI in Huang-Huai-Hai agricultural region has increased from 152% to 156% in the 12 years. Topography is a primary factor in determining the spatial pattern dynamics of MCI, which is more stable in hilly area than in plain area. An increase from 158% to 164% of MCI occurred in plain area while there was almost no change in hilly area with single Cropping. The most active region of MCI change was the intersection zone between the hilly area and plain area. In spatial patterns, landscape of Multiple Cropping systems tended to be homogenized reflected by a reduction in the degree of fragmentation and an increase in the degree of concentration of cropland with the same Cropping system.

  • Multiple Cropping intensity in china derived from agro meteorological observations and modis data
    Chinese Geographical Science, 2014
    Co-Authors: Huimin Yan, Xiangming Xiao, He Qing Huang, Jiyuan Liu, Jingqing Chen, Xuehong Bai
    Abstract:

    Double- and triple-Cropping in a year have played a very important role in meeting the rising need for food in China. How- ever, the intensified agricultural practices have significantly altered biogeochemical cycles and soil quality. Understanding and mapping Cropping intensity in Chinas agricultural systems are therefore necessary to better estimate carbon, nitrogen and water fluxes within agro-ecosystems on the national scale. In this study, we investigated the spatial pattern of crop calendar and Multiple Cropping rotations in China using phenological records from 394 agro-meteorological stations (AMSs) across China. The results from the analysis of in situ field observations were used to develop a new algorithm that identifies the spatial distribution of Multiple Cropping in China from mod- erate resolution imaging spectroradiometer (MODIS) time series data with a 500 m spatial resolution and an 8-day temporal resolution. According to the MODIS-derived Multiple Cropping distribution in 2002, the proportion of cropland cultivated with Multiple crops reached 34% in China. Double-Cropping accounted for approximately 94.6% and triple-Cropping for 5.4%. The results demonstrat that MODIS EVI (Enhanced Vegetation Index) time series data have the capability and potential to delineate the dynamics of double- and triple-Cropping practices. The resultant Multiple Cropping map could be used to evaluate the impacts of agricultural intensification on biogeochemical cycles.

  • modeling gross primary productivity for winter wheat maize double Cropping system using modis time series and co2 eddy flux tower data
    Agriculture Ecosystems & Environment, 2009
    Co-Authors: Huimin Yan, Xiangming Xiao, He Qing Huang, Laura Ediger
    Abstract:

    Accurate and spatially explicit monitoring of gross primary productivity of agricultural ecosystems at a large scale is of great significance to assessment of crop conditions and agricultural production, and is necessary for understanding the carbon balance of the terrestrial biosphere. Identifying crop intensity (including Multiple Cropping and crop calendar) dynamics and assigning appropriate light use efficiency to C3 and C4 crops could substantially improve our ability to model and evaluate the seasonal dynamics of carbon flux in intensified agricultural ecosystems. In this paper, we have analyzed temporal dynamics of vegetation indices and phenological characteristics in the winter-wheat and maize double Cropping system using multi-year satellite images from the moderate resolution imaging spectral radiometer (MODIS) and in situ observation of key crop phenological transition dates. The Multiple Cropping and crop calendar information were incorporated into simulations of the satellite-based vegetation photosynthesis model (VPM). Canopy-level maximum light use efficiency, a key parameter in the satellite-based VPM model, was estimated for both winter wheat (C3) and maize (C4) based on the observed CO 2 flux data from an eddy flux tower site in a winter wheat-maize double Cropping agro-ecosystem in the HuangHuai-Hai plain, China. The seasonal dynamics of GPP predicted by the VPM model agreed well with estimated GPP from eddy flux tower data. These results demonstrate the potential of the satellite-driven VPM model for scaling-up GPP estimation of intensified agricultural ecosystems, which is relevant to food production and security.

Kui Wang - One of the best experts on this subject based on the ideXlab platform.

  • spatial and temporal distribution of Multiple Cropping indices in the north china plain using a long remote sensing data time series
    Sensors, 2016
    Co-Authors: Yan Zhao, Linyan Bai, Jianzhong Feng, Xiaosong Lin, Li Wang, Qiyun Ran, Kui Wang
    Abstract:

    Multiple Cropping provides China with a very important system of intensive cultivation, and can effectively enhance the efficiency of farmland use while improving regional food production and security. A Multiple Cropping index (MCI), which represents the intensity of Multiple Cropping and reflects the effects of climate change on agricultural production and Cropping systems, often serves as a useful parameter. Therefore, monitoring the dynamic changes in the MCI of farmland over a large area using remote sensing data is essential. For this purpose, nearly 30 years of MCIs related to dry land in the North China Plain (NCP) were efficiently extracted from remotely sensed leaf area index (LAI) data from the Global LAnd Surface Satellite (GLASS). Next, the characteristics of the spatial-temporal change in MCI were analyzed. First, 2162 typical arable sample sites were selected based on a gridded spatial sampling strategy, and then the LAI information was extracted from the samples. Second, the Savizky-Golay filter was used to smooth the LAI time-series data of the samples, and then the MCIs of the samples were obtained using a second-order difference algorithm. Finally, the geo-statistical Kriging method was employed to map the spatial distribution of the MCIs and to obtain a time-series dataset of the MCIs of dry land over the NCP. The results showed that all of the MCIs in the NCP showed an increasing trend over the entire study period and increased most rapidly from 1982 to 2002. Spatially, MCIs decreased from south to north; also, high MCIs were mainly concentrated in the relatively flat areas. In addition, the partial spatial changes of MCIs had clear geographical characteristics, with the largest change in Henan Province.