نتایج جستجو برای: crop management
تعداد نتایج: 907711 فیلتر نتایج به سال:
Knowledge of spatial and temporal variations in crop growth is important for crop management and stable crop production for the food security of a country. A combination of crop growth models and remote sensing data is a useful method for monitoring crop growth status and estimating crop yield. The objective of this study was to use spectral-based biomass values generated from spectral indices ...
A review of nitrogen (N) fertiliser management in the Australian sugar industry was undertaken to identify new strategies to improve N fertiliser use efficiency and to fill gaps in knowledge relevant to N fertiliser management. The Australian sugar industry has a history of high N fertiliser usage, with applications increasing from the 1960s to the late 1990s. However, industry average sugarcan...
Year to year variation in yield is an inherent risk associated with crop production and many growers rely on intensive mechanical or chemical inputs to preserve crop yield in the face of fluctuating environmental conditions. However, as interest grows in alternative crop management systems which depend less on external inputs, determining the degree to which management systems can impact the te...
A 3- years (2015, 2016 and 2017) field study was carried out at National Wheat Research Program, Bhirahawa, Rupandehi, Nepal to evaluate the influence of crop residues and nitrogen levels on rice. The experiment was conducted in split plot design with three replications. Main plots were two crop residue levels (with crop residues of 30 cm wheat stubble and without crop residues) and sub plots c...
Energy use and greenhouse gases (GHG) emissions in rainfed canola production in north eastern Iran were analyzed to find measures to reduce energy use and GHG emissions. Four production scenarios, i.e. a high-input, a low-input, a better crop management and a usual scenario, evaluated. All activities and production processes were monitored and recorded over three consecutive years. The usua...
Precision farming, precision agriculture or site-specific management (SSM) is a management system where crop production practices and inputs such as seed, fertilizers and pesticides are variably applied within a field. Input rates are based on the needs for optimum production at each within-field location. Since over-application and under-application of agrochemicals are both minimized, this st...
With changing climatic conditions the balance in agricultural resources of semi-arid tropics are largely affected. This has led to impacts on the socio economic condition of resource poor cultivators / farmers. Technological advances in Wireless Sensor Networks (WSN) have achieved the capability to seamlessly gather real-time agro-meteorological and environmental data. In order to address the p...
Agricultural intensification, or the increase in crop production per unit of input land area to meet needs a growing population, has resulted landscape dominated by large scale monoculture cropping. Pollinators, specifically, are impacted lack diverse floral and habitat resources associated with this type farming. Agriculture must develop practices that diversify availability flowering support ...
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