5results about How to "Reduce deep leakage" patented technology

The invention discloses a high-moisture nano-type soil conditioner and a preparation method thereof, and belongs to the field of fertilizers. The high-moisture nano-type soil conditioner is prepared from the following components in parts by weight: urea, monopotassium phosphate, potassium nitrate, anhydrous magnesium sulfate, zinc sulfate, a composite nano-type water-retaining agent and organic matter modified attapulgite. The organic matter modified attapulgite and the composite nano-type water-retaining agent are added into the soil conditioner, so that the water storage capacity of soil is improved, a good soil structure foundation is provided for the organic matter, and adsorption and permeation of water are promoted; the modified attapulgite and the water-retaining agent further enhance the water absorption, storage and release capabilities of the soil; the modified attapulgite and the composite nano water-retaining agent can form a water buffer reservoir in the soil, provide water under drought conditions, absorb excess water under rainfall conditions, maintain proper water content of the soil and improve the soil moisture content of the soil.

The invention discloses a crop irrigation short-term prediction method and system based on fuzzy control, and relates to the technical field of intelligent agriculture and irrigation control, and the method comprises the steps: collecting weather, multi-depth soil moisture content and field time sequence data of a crop growth stage, and obtaining irrigation feedback; processing the data, and inputting a time sequence prediction model to output water demand prediction values of one to three days and confidence obtained by mapping historical verification errors; fuzzifying the water demand predicted value, the real-time root zone moisture content and the growth stage index, performing weighted deduction and fuzzification based on a fuzzy rule base with a rule dynamic weight, and outputting planned irrigation duration or irrigation amount; and calculating the actual water consumption and updating the dynamic weight of the rule in the post-irrigation evaluation time window according to the water balance and the root zone soil moisture reserve variation. Through confidence risk suppression and post-irrigation closed-loop self-tuning, the stability of short-term prediction driving irrigation decision is improved, the over-irrigation and over-seepage risks are reduced, and the utilization efficiency of irrigation water is improved.

The invention relates to the technical field of ecological infiltrating tanks, and discloses an ecological infiltrating irrigation circulating system which comprises a ladder frame arranged on the ground, and further comprises a plurality of fishponds arranged on the ladder frame and arranged on the table top of the ladder frame with the horizontal heights decreasing in sequence, and a water tank arranged on the ladder frame, wherein water in the upper fishpond can overflow into the lower fishpond when reaching a preset position; the oxygenation swirler is arranged in the fishpond and used for oxygenating the inside of the fishpond and gathering waste such as excrement and residual feed to the bottom of the fishpond; the dirt discharge part is arranged on the fish pond and connected with the fish pond, the other end of the dirt discharge part is communicated with a sedimentation tank, and waste in the fish pond can be discharged into the sedimentation tank through the dirt discharge part. According to the ecological infiltrating irrigation circulation system, the water-saving advantage of the drip irrigation technology and the ecological concept of planting and breeding combination are combined, and efficient cyclic utilization of agricultural resources is achieved.

This utility model discloses a water-saving irrigation device for rice cultivation, which includes a main water pipe (1), a pressurized water pump (2), multiple branch water pipes (3), and a controller (4). Each branch water pipe (3) has a water outlet pipe (5) installed at its end, which is vertically positioned in the rice field. Each water outlet pipe (5) has three water injection nozzles installed on it. Each water injection nozzle has a solenoid valve (6) installed on it. Above each water injection nozzle, there is an arc-shaped baffle (7) fixed on the water outlet pipe (5). Each baffle (7) has a soil moisture sensor (8) installed on its top surface. Each solenoid valve (6) and soil moisture sensor (8) is electrically connected to the controller (4). This utility model not only improves water utilization efficiency but also has the advantages of good irrigation effect, good water-saving effect, convenient use, long service life, convenient maintenance, high irrigation rate, simple structure, and high structural stability.

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.