3results about How to "Reduce ineffective evaporation" patented technology

The invention discloses a dry terrace alfalfa double-layer planting method, and relates to the technical field of dry farming planting.The method includes the specific steps that soil preparation and ridging are conducted on a target dry terrace, ridge type upper-layer planting belts and ditch type lower-layer planting belts are formed, and a photo-thermal bearing area and a rainfall runoff collecting area are arranged respectively; layering root limiting arrangement is conducted, and a root system growth area is divided; fully covering a film for water retention laying, and constructing a water collection and supply channel; sowing double-layer alfalfa in the same period; starting a four-dimensional cooperative regulation and control unit, collecting data, and performing unified scheduling on water, fertilizer, gas and heat by using an algorithm; by constructing a furrow double-layer three-dimensional planting structure and matching with full-film-covering water retention, three-dimensional efficient utilization of dry terrace resources is achieved, water and fertilizer competition is avoided, and the water and fertilizer retention capacity is enhanced; through synchronous sowing, four-dimensional cooperative regulation and control, an exclusive water supplementing amount algorithm and synchronous peak shifting harvesting, mechanical harvesting operation requirements are met, damage of mechanical rolling to plants and ridge body structures is avoided, and support is provided for large-scale and mechanical planting of dry terrace alfalfa.

This specification provides one or more embodiments of a root-oriented water-saving irrigation device, including a base frame, a drip irrigation assembly, and a limiting support assembly. The base frame is a cylindrical structure used to insert into the soil and control the directional growth of crop roots. The drip irrigation assembly includes two sets of drip irrigation frames symmetrically arranged on the top periphery of the base frame. Each drip irrigation frame is internally threaded with an irrigation rod. Grooves are provided on both sides of the irrigation rod, and a sponge is fixed within each groove, with PAM (a water-retaining agent) placed inside the sponge. This device is suitable for all greenhouse applications and has a wide range of applications. Specifically designed for plastic greenhouse planting, it incorporates a precipitation impact correction formula, which can accurately adjust irrigation water demand based on factors such as the greenhouse's closure status, ventilation opening, and external precipitation. It possesses self-learning (automatic adjustment) optimization capabilities, continuously improving irrigation accuracy. The device can use a fixed cycle as an iteration unit, providing actual crop growth data based on measured soil moisture content data within the cycle.

The application discloses a cotton drip irrigation-unmanned aerial vehicle cooperative operation field water rapid replenishing irrigation system and belongs to the technical field of intelligent agricultural irrigation. The physical execution layer comprises a drip irrigation pipe network subsystem and an unmanned aerial vehicle replenishing irrigation subsystem. The intelligent perception layer comprises a soil moisture detection unit and a crop physiological monitoring unit. The decision control layer comprises an air-ground irrigation cooperation module, a pulse replenishing irrigation strategy module and a three-dimensional path planning module. The application can effectively improve work efficiency, provide per mu yield increase and reduce cost.