Definition

• Thomas F. Sherer, an agricultural engineer from North Dakota State University, defines micro-irrigation as "low pressure irrigation systems that spray, mist, sprinkle or drip." These systems may be arranged in a variety of layouts according to the landscape's needs.
  
  

Advantages

• Micro-irrigation is especially advantageous in areas where water is limited or expensive. By providing water directly to the plants' roots, micro-irrigation eliminates waste and cuts down on weed growth and disease.
  
  

Forms

• Micro-irrigation systems may be set on drip, bubbler or sprinkler modes according to how much water the plants need. These systems may deliver water to one specific plant, or they may provide nourishment for a long line of plants, such as row crops. Micro-irrigation may also be used to deliver any type of fertilizer that dissolves in water.
  
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Drawbacks

• While extensive systems can be expensive, small micro-irrigation kits often sell for a reasonable price. If you choose to install a micro-irrigation system, be sure to treat the area for rodents, as they can gnaw right through parts of such systems.