The present invention is a system for treating land, either to reclaim or optimize the land. Embedded subsurface pipes deliver water to the land. The water may be loaded with soil-treating additives. As water streams from the pipes, it treats the land before passing into a drainage ditch around the periphery of the land. The water is removed from the ditch and recycled, removing contaminants (in reclamation operations) or adding more additives (in optimization operations), before returning to the pipes for another round of treatment, if necessary.

A sub-irrigation system includes a special water distribution assembly that is able to rapidly disperse water underneath a court surface. The system has a water distribution assembly with a water channel and permeable fabric covering. The system also includes an electronic control system to monitor and maintain a desired moisture content of a court. Inevitable variations resulting from manual and gravity fed water control only are moderated or eliminated by the automatic control herein.

A sub-irrigation system includes a special water distribution assembly that is able to rapidly disperse water underneath a court surface. The system has a water distribution assembly with a water channel and permeable fabric covering. The system also includes an electronic control system to monitor and maintain a desired moisture content of a court. Inevitable variations resulting from manual and gravity fed water control only are moderated or eliminated by the automatic control herein.

A sub-irrigation system includes a special water distribution assembly that is able to rapidly disperse water underneath a court surface. The system has a water distribution assembly with a water channel and permeable fabric covering. The system also includes an electronic control system to monitor and maintain a desired moisture content of a court. Inevitable variations resulting from manual and gravity fed water control only are moderated or eliminated by the automatic control herein.

A sub-irrigation system includes a special water distribution assembly that is able to rapidly disperse water underneath a court surface. The system has a water distribution assembly with a water channel and permeable fabric covering. The system also includes an electronic control system to monitor and maintain a desired moisture content of a court. Inevitable variations resulting from manual and gravity fed water control only are moderated or eliminated by the automatic control herein.

A fixed irrigation landscape growing system comprises: a supporting substrate; a water absorbent blanket arranged above the substrate; and a growing medium, notably a soil layer, arranged above the water absorbent blanket. Irrigation is provided by irrigation pipes or by sprinklers.

A fixed irrigation landscape growing system comprises: a supporting substrate; a water absorbent blanket arranged above the substrate; and a growing medium, notably a soil layer, arranged above the water absorbent blanket. Irrigation is provided by irrigation pipes or by sprinklers.

Features of relatively low pressure microporous (and preferably plant-responsive) irrigation tubes are combined with features of relatively high pressure drip emitter tubes to produce a hybrid irrigation tube. Methods for using and manufacturing the hybrid irrigation tube are also disclosed.

Features of relatively low pressure microporous (and preferably plant-responsive) irrigation tubes are combined with features of relatively high pressure drip emitter tubes to produce a hybrid irrigation tube. Methods for using and manufacturing the hybrid irrigation tube are also disclosed.

An irrigation communicates wirelessly with irrigation control valves. A wireless controller transceiver unit obtains signals from the irrigation controller and transmits these signals wirelessly to a valve transceiver. The irrigation control valves open or close according to the signals received by the valve transceiver. The irrigation system also includes an auxiliary communication device that communicates user commands to the controller transceiver. The user commands are used to create associations between the controller transceiver and each of the valve transceivers. The communication link between the auxiliary communication device and the communication transceiver or the valve transceiver can be an RF communication link such as Bluetooth, a close field communication link such as an inductive communication link, or an optical communication link.