नहरों और कुओं जैसी पारंपरिक विधियों की तुलना में स्प्रिंकलर और ड्रिप सिंचाई जैसी आधुनिक सिंचाई विधियों का उपयोग करने का प्राथमिक लाभ क्या है?

The type of irrigation practice in which water is conveyed through a system of flexible pipelines operating at low pressure, applied near the base of the plant, and offers maximum water saving is:

Match the irrigation methods in List 1 with their salient features in List 2: List 1: P. Check Flooding Q. Furrow Method R. Drip Irrigation S. Subsurface Irrigation List 2: 1. Supply of water in the form of drops directly near the root zone by pipelines. 2. Supply of water directly to root zone of crops through a network of buried perforated pipes. 3. Water is conveyed to field plots by a system of supply channels (main ditch) and laterals. 4. Consists of narrow ditches between rows of plants, with 12 to 15 of surface wetted.