Deficit irrigation and irrigation methods as on-farm strategies to maximize crop water productivity in dry areas
نویسندگان
چکیده
منابع مشابه
Rhizosphere manipulations to maximize 'crop per drop' during deficit irrigation.
Although much of global agriculture is rain-fed, production is frequently (and sometimes catastrophically) constrained by rainfall. Supplementary irrigation can stabilize yield from year-to-year and conventionally has aimed to meet full crop evapotranspiration (ET), since the relationship between ET and crop yield is near-linear at suboptimal water supply (Fereres and Soriano, 2007). Changes in...
متن کاملEffect of deficit irrigation on crop growth, yield and quality of onion in subsurface drip irrigation
Indiahas the largest area under onion (Allium cepa) crop but its average productivity (14.21 t ha-1) is considerably lower than the world’s average of 19.4 t ha-1. Besides low productivity, irrigation efficiencies are also very low i.e. 30-35% in India. Managing onion crop with less than adequate irrigation water availability is a challenge in several parts of the country. Options of i) deficit...
متن کاملIdentifying Irrigation Strategies for Improved Agricultural Water Productivity in Irrigated Maize Production through Crop Simulation Modelling
Identifying irrigation strategies that improve agricultural water use efficiency (WUE) have a pivotal role to play in sustainable water development. In this study, the AquaCrop model was used to examine the impact of different irrigation scheduling options on yields to identify viable strategies to enhance WUE for irrigated maize. Two scheduling scenarios at water application depths ranging fro...
متن کاملComparing canopy temperature and leaf water potential as irrigation scheduling criteria of potato in water-saving irrigation strategies
Irrigation scheduling is important in irrigation water management. In this study, full (FI),deficit (DI) and partial root drying (PRD) irrigation strategies were applied in Agria and Ramospotato cultivars. Canopy temperature (CT) and leaf water potential (LWP) were assessed as thepotential tools for irrigation scheduling during the vegetative and productive growth stages.LWP varied between ca. ...
متن کاملDeficit irrigation for reducing agricultural water use.
At present and more so in the future, irrigated agriculture will take place under water scarcity. Insufficient water supply for irrigation will be the norm rather than the exception, and irrigation management will shift from emphasizing production per unit area towards maximizing the production per unit of water consumed, the water productivity. To cope with scarce supplies, deficit irrigation,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Water and Climate Change
سال: 2017
ISSN: 2040-2244,2408-9354
DOI: 10.2166/wcc.2017.014