7results about How to "Avoid overnutrition" patented technology

The invention is applicable to the technical field of hydroponic plants, and provides an offshore hydroponic device utilizing wave energy, wind energy and solar energy, which comprises a floating hydroponic frame, a power supply energy storage unit, a nutrition supply unit and a control unit, the floating hydroponic frame comprises a floating box floating on the water surface and a hydroponic plant frame arranged above the floating box, and a plurality of hydroponic grooves used for planting hydroponic plants are vertically distributed in the hydroponic plant frame side by side. The nutrition supply unit comprises a nutrient solution storage tank, a nutrient solution pump and a purifying and conditioning unit which are arranged in the floating box, the nutrition supply unit is arranged, through cooperation of the nutrient solution storage tank, the nutrient solution pump and the purifying and conditioning unit, the nutrient solution pump pumps a nutrient solution from the nutrient solution storage tank, and the nutrient solution is conveyed to the roots of the hydroponic plants after being purified and conditioned; the concentration and supply amount of the nutrient solution can be more accurately controlled, the requirements of plant growth are met, the uniformity of plant growth can be effectively improved, and overnutrition or insufficient nutrition is prevented.

This utility model relates to the field of fish farming escape prevention technology, specifically to a fish farming escape prevention device, including a base, a fishing net tube fixedly installed on the top of the base, a barrier tube slidably connected inside the fishing net tube, a sealing plate installed on the top of the barrier tube by screws, and an airbag fixedly connected to the outside of the sealing plate. The airbag changes with the water level. The fishing net tube is equipped with stirring blades to agitate the water flow. The use of the airbag allows the height of the escape prevention device to change with the water level, eliminating the need for manual adjustment and preventing fish from easily flying out or swimming out of the top of the escape prevention device, thus ensuring the effectiveness of the escape prevention device. Furthermore, the external wind force drives the blades to rotate, which agitates the water flow inside the fishing net tube, allowing dissolved oxygen and nutrients in the water to be evenly distributed, avoiding local hypoxia or nutrient overload, and providing a good growth environment for the fish.

The invention discloses a method for topping Yunyan 87. The method comprises the steps that tobacco plant transplanting is completed from April 25 to May 5, and classified jointing and topping are carried out according to different growth vigor (early blossoming, poor growth vigor, general growth vigor, good growth vigor and good growth vigor) of tobacco plants. The method specifically comprises the following steps: in early flowering and topping, a method of'topping without leaf removal 'is adopted, the pitch is lengthened by 5cm, 16 leaves are reserved, and the plant height is controlled to be 80-85cm after topping; the growth vigor is poor, 18 leaves, 20 leaves, 22 leaves and 24 leaves are reserved on common tobacco plants, good tobacco plants and good tobacco plants respectively, and the plant heights are controlled to be 90-95 cm, 100-105 cm, 110-115 cm and 120-125 cm. Tests prove that the method remarkably improves the tobacco leaf yield and economic benefits, the average output value per mu and the first-class tobacco proportion are greatly improved, and the method is superior to a traditional topping method. The method can effectively solve the problems of unreasonable group structure and low tobacco yield and quality in the low-latitude and high-altitude tobacco area.

The utility model provides a novel silicon-rich nutrient solution hydroponic system, which belongs to the technical field of plant hydroponics and comprises a support frame, an inclined strut is mounted at the bottom of the support frame, a hollow support table is fixed at the top of the support frame, a hydroponic component is mounted on the support table, a filter screen is mounted below the support frame, and the filter screen is fixed on the support frame. An inclined plate is mounted below the filter screen, and a liquid storage tank is mounted below the inclined plate; the device further comprises a control assembly and an adding assembly, and the adding assembly is electrically connected with the control assembly. The utility model solves the problems that the concentration and the proportion of nutrient solution are difficult to accurately control during the existing crop water culture, an effective intelligent operating system is lacked, the water culture system is usually operated in a relatively closed environment, once root system diseases occur, the root system diseases are easy to spread quickly in the whole system, large-area infection and loss are caused, and the water culture cost is low. And water resources or nutrient solutions cannot be recycled, and large waste is easily caused.

The invention relates to the technical field of wine making devices, in particular to a white wine cellar mud protection and maintenance device and a white wine cellar. The supporting frame and the stainless steel net are arranged, so that the risk of mistakenly digging pit mud in the pit outlet process can be effectively reduced, and the integrity of the pit mud is protected. Meanwhile, the device can effectively prevent the pit mud from falling off, the service life of the pit mud is prolonged, and the workload of repairing the pit mud is reduced. The device is provided with the nutrition supply coil pipe and the temperature adjusting coil pipe, nutrition can be provided for pit mud, the temperature of the pit mud can be controlled, and uniform and timely maintenance of the pit mud is achieved. Through the seepage holes and the reverse osmosis membrane, a nutrient solution uniformly permeates, overnutrition or insufficiency is avoided, and uniform growth of microorganisms in pit mud is promoted. Meanwhile, the temperature adjusting coil pipe can control the temperature of the pit mud, so that the pit mud is at a proper fermentation temperature, the growth of microorganisms in the pit mud is facilitated, the activity of caproic acid bacteria is improved, the production of ethyl hexanoate is improved, and the quality of raw wine is improved.

The invention discloses a low-protein daily ration for broiler chickens in the later growth period and application of the low-protein daily ration, belongs to the technical field of animal feed preparation, and provides the low-protein daily ration for the broiler chickens in the later growth period. Comprising corn, soybean meal, corn protein powder, wheat flour, mountain flour, soybean oil, calcium hydrophosphate, table salt, choline chloride, broiler trace elements, DL-methionine, L-lysine hydrochloride, broiler vitamins, L-phenylalanine, L-threonine, L-arginine, L-isoleucine, L-tryptophan, L-valine, glycine, phytase, zeolite powder, potassium carbonate and sodium bicarbonate. According to the invention, the daily ration protein level of the broiler chicken at the late fattening stage of 29-42 days is reduced from 20% to 18%, essential amino acids are balanced, the crude protein content in the broiler chicken daily ration can be effectively reduced, and the protein utilization rate of the broiler chicken is improved, so that the nitrogen content in broiler chicken manure is reduced, and the pollution of broiler chicken production to the environment is reduced.

The present invention relates to the technical field of intelligent nutrition management, and in particular to a method for optimizing dietary energy intake for obese people, the method comprising: determining nutritional characteristic values ​​of various foods according to a nutrient content sequence and performing a sorting operation to obtain a main nutrient data string of the various foods; analyzing each main nutrient data string and performing a corresponding first-class energy labeling; determining the energy density level and expansion level of various foods and performing a corresponding second-class energy labeling; based on the first-class energy labeling result and the second-class energy labeling result, correcting a primary energy sequence and adding a label stamp to obtain an actual energy sequence table; periodically obtaining parameters of a person to be optimized, inputting the parameters of the person to be optimized into a linear regression model to output an actual progress direction; and combining the actual energy sequence table, the first-class energy labeling result and the second-class energy labeling result according to the actual progress direction to output a dietary energy prediction result.