W always discuss about problems or challenges associated with rainfed or dryland agriculture. Let's talk about irrigated agriculture. What are the challenges or problems you have encountered in irrigated farming system ??
Most common problem in irrigated farming System is, it needs dedicated Care.
Well,all issues falling under intensified cultivation do have concerns in this case.
Biotic stress issues are always on higher side due to more succulent crop conditions
Most common problem in irrigated farming System is, it needs dedicated Care.
Weed growth is one, loss of fertilizer or top soil due to run-offs is another, lack of adequate aeration to roots and increase in vegetative growth instead of productive growth is also a concern.
I agree with the cited problems in irrigated agriculture by Dr. Emmanuel.
Difficulties that can arise from irrigation are the potential for soil to be affected by salinity, as well as the loss of nutrients due to drainage with excess water and the possibility of rising ground water level .
Irrigated farmings are the most productive farming systems in the world. They constitute a solution of good water management and then for adaptation to climate change. It's known for example that irrigated rice farming gives the highest yield. But irrigated farming systems are costy and need more investments and technicity. That's why poor farmers and countries do not have means to use them sufficiently. Irrigated agriculture is necessary for agricultural transition.
Different problems arise from different irrigated farming depending on the system which you have chosen. Surface irrigation for example has problems in such a way that there is poor management of water which leads to over irrigation and causes leaching of nutrients.Drip irrigation is efficient but it's expensive can't be afford by most farmers. Sprinker irrigation is labour intensive interms of moving the pipes and expensive.
One thing that hasn't been mentioned yet is the potential for water-borne diseases to infect the irrigated crops. E.g. when irrigating from ponds on potatoes.
Dec ling water table, reducing organic matter due to increasing use of chemical fertilisers which ultimately drain down to sea causing dead zones, increasing soil salinity, and decreasing factor productivity (year to year reduction in quantity of grains produced using per kg of nutrients in terms of NPK) are the major problems in addition to the changing pest status.
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