irrigated agriculture
Research Topic
Language: English
This is a research topic created to provide authors with a place to attach new problem publications.
Research problems linked to this topic
- It is important to understand how surface water and river flows can be modified by land-use and climate changes.
- Rice is one of the most important cereal crop, widely cultivated in a varied diverse ecosystem. This poses a host of problems to maximise output in such a variety.
- Compaction of agricultural soils due to intensive farming with intense traffic of agricultural machinery has become a limiting factor for crop development in recent years.
- Understanding runoff in river catchment areas is critically important to maintaining water systems
- In arid and populated areas or countries, water shortage and heavy carbon emissions are threatening agricultural sustainability with food security severely, and becoming a major issue.
- The potential use of space borne remotely sensed data to obtain accurate information on land surface processes and conditions has been spreading widely in the international research field of water resources management.
- Stabilizing smallholder crop yields under changing climatic conditions in sub-Saharan Africa will require adaptation strategies focused on soil and water management.
- Nitrate leaching (NL) is an important N loss process in irrigated agriculture that imposes a cost on the farmer and the environment.
- Sustainable water management in irrigation-dominated river basins attempts to ensure a long-term, stable, and flexible water supply to meet crop water demands, as well as growing municipal and industrial water demands, while mitigating negative environmental consequences.
- No-tillage systems on fine-textured soil are not well suited for corn (Zea mays L.) because of problems with excess water, lower temperatures, and residue management during the early stages of corn growth.
- Irrigation with brackish water is a possible solution to alleviate freshwater shortages in arid and semi-arid regions.
- Ammonia is one of our most important industrial chemicals supporting the global food supply as the major crop fertilizer.
- Many ornamental plant growers water excessively to reduce the risk of drought stress.
- Rainwater harvesting (RWH) technology has been in use for a long time, however its contribution towards urban water supply has been negligible in South Africa.
- Water scarcity, erratic rainfall distribution and better management of water are a major constraint for the production of food in arid and semi-arid areas.
- The success of variable rate N fertilizer application rests on our ability to predict the contribution of soil N to growing crops.
- The problem of protecting lands from flooding caused by flash floods is widespread
- Since the salinity of irrigation water is a critical constraint to the production of certain vegetable crops, salinity has been considered as one of the most important factors of irrigation water.
- In regions where water is more scarce than land, it is important to analyse options for crop production increase or water savings in irrigated agriculture.
- Crops require adequate nutrition for the production of food, fibre and fuel, but soil conditions often limit the ability of crops to acquire mineral nutrients.