![]() ![]() Under very windy conditions, drip or surface irrigation methods are preferred. Strong wind can disturb the spraying of water from sprinklers. An exception is rice grown on terraces on sloping lands. Sprinkler or drip irrigation are preferred above surface irrigation on steeper or unevenly sloping lands as they require little or no land levelling. When a variety of different soil types is found within one irrigation scheme, sprinkler or drip irrigation are recommended as they will ensure a more even water distribution. Clay soils with low infiltration rates are ideally suited to surface irrigation. On loam or clay soils all three irrigation methods can be used, but surface irrigation is more commonly found. Under these circumstances, sprinkler or drip irrigation are more suitable than surface irrigation. They therefore need frequent but small irrigation applications, in particular when the sandy soil is also shallow. Sandy soils have a low water storage capacity and a high infiltration rate. The natural conditions such as soil type, slope, climate, water quality and availability, have the following impact on the choice of an irrigation method: surface, sprinkler or drip irrigation, depends mainly on the following factors: The suitability of the various irrigation methods, i.e. Several important criteria in the selection of a suitable irrigation method.ħ.1 Surface, Sprinkler or Drip Irrigation This chapter gives some very broad guidance and indicates The prevailing local conditions - provides the best basis for a sound choice Unfortunately, in many cases there is no single best solution: all methods He or she must know which method suits the local conditionsīest. ![]()
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