43results about How to "Reduce labor for fertilization" patented technology

The invention relates to a dedicated controlled release fertilizer, and in particular to a whole-course one-time cotton dedicated controlled release fertilizer directly applied to the bottom of nutrition bowl seedlings, and a preparation method and an application thereof. The cotton dedicated controlled release fertilizer is prepared according to the law of demands of cotton on nitrogen, phosphorus, potassium and trace elements, soil characteristics, an ecological environment and the like. Only when the nutrition bowl seedlings are transplanted and planted, holes are punched in a planting field, the fertilizer is applied into the holes, then nutrition bowls are put on the top of the fertilizer, the fertilizer is applied at a time to the bottoms of the nutritional bowls, and thus all needs of the cotton during a growth period can be satisfied; fertilizing and transplanting are synchronously carried out without punching the holes again, thus two more times of fertilizing are decreased, and the total input costs of farmers are reduced. The fertilizer utilization ratio is improved, the fertilizer applying amount is reduced, and the fertilizer loss is reduced.

The invention belongs to the field of crop cultivation, and relates to a special fertilizer for sugarcane and an application method thereof. The special fertilizer is prepared by uniformly mixing urease-inhibiting urea, zinc humic acid diammonium and potassium chloride, and two methods of base fertilizer application and topdressing application are used. The one-time application method can reduce the frequency of fertilization, reduce the labor of fertilization, and according to the nutrient absorption law of sugarcane, improve the nutrient distribution ratio, enhance the photosynthesis of sugarcane, reduce ammonia volatilization, and improve the utilization rate of fertilizer. It is safe, ecological, and low in cost. practical application value.

A release-controlled compound fertilizer for planting potato in the rice field in the southern winter contains N, P2O5 and K2O in ratio of (2-3): (1-1.5): (4-5). Its preparing process includes such steps as pulverizing N, P and K fertilizers, granulating, drying, screening and coating film for controlling its release. Its advantage is proportional release of N, P and K by stages.

The invention relates to an organic bacterial fertilizer belonging to the technical field of agricultural production, and particularly relates to a functional multi-resistant biological organic bacterial fertilizer promoting growth of farm crops and cash crops. The multi-resistant biological organic bacterial fertilizer is prepared through the following steps: preliminarily mixing fresh cattle manure, fresh sheep manure, fresh chicken manure and powdery plant straws according to a certain volume ratio, then admixing with multiple biological bacteria and minor elements, and fermenting. According to the invention, the formula of the multi-resistant biological organic bacterial fertilizer chooses the organic raw materials which contain natural active substances and decomposition products and can inhibit and reduce soil-borne diseases; and meanwhile, the biological florae secrete multiple antibiotics and plant active substances, the enriched multiple fatty acids and antibiotics can obviously inhibit and relieve the soil-borne diseases of the crops, and the comprehensive nutrients improve the disease resistance of the crops. Thus, the fertilizer has better antibacterial and disease-resistant effects.

The invention relates to a method for preparing polyurethane-polyurea coated fertilizer, comprising the following steps: dehydrating polyether polyol to obtain dehydrated polyether polyol, adding polyisocyanate to the dehydrated polyether according to the molar ratio of NCO to OH of 2-5, heating the temperature of the mixture of the dehydrated polyether and the polyisocyanate to 70-90 DEG C, making the mixture of the dehydrated polyether and the polyisocyanate react until the mass of NCO being 5-9 percent of the mass of the product of reaction, defoaming the product of reaction in vacuum to obtain -NCO-ended polyurethane prepolymer, filling fertilizer in a spray dryer, heating the fertilizer to 60 DEG C, mixing the polyurethane prepolymer with amine chain extender according to the mass ratio of 7-8:1 to obtain spraying liquid by controlling the fan frequency at 45 Hz, the nozzle atomization air pressure at 0.7-1.2 Mpa, the inlet air temperature at 20-80 DEG C and the spray rate at 0.4-0.6 Kg / h, spraying the spraying liquid whose mass is 7-10 percent of the mass of the fertilizer on to the fertilizer, and curing the coating film to obtain the polyurethane-polyurea coated fertilizer.

The invention discloses a cave and strip combined fertilizing method used for a flue-cured tobacco base fertilizer. Cave fertilizing holes are arranged along a radial direction on a tobacco ridge after a tobacco land is ridged; then stripe fertilizing furrows are arranged among adjacent cave fertilizing holes; tobacco dedicated basal fertilizer is applied in the cave fertilizing holes and the strip fertilizing furrows, wherein the total weight of the tobacco dedicated basal fertilizer in the cave fertilizing holes accounts for 30-40% of that of the tobacco dedicated basal fertilizer; farmyard manure is applied in the cave fertilizing holes before the tobacco dedicated basal fertilizer is applied; the total weight of the strip fertilizer accounts for 60-70% of that of the tobacco dedicated basal fertilizer, and finally the strip fertilizing furrows after being applied with the fertilizer are wrapped with soil. Through the arrangement of cave fertilizing holes and strip fertilizing furrows and match of the fertilizing amount of cave fertilizing and strip fertilizing, the cave and strip combined fertilizing method used for the flue-cured tobacco base fertilizer has the advantages that utilization rate of fertilizer is effectively improved, fertilizing labor is reduced, normal growth of tobacco plants is boosted, tobacco leaf yield quality is improved, thus economic benefit is improved.

The invention provides a special liquid organic fertilizer for tea and a preparation method of the liquid organic fertilizer, aiming to solve the technical problems that the existing fertilizer in the prior art is single, can not meet the requirements of different types of tea trees, causes the loss of nutritional ingredients in the soil when used for a long time, and is large in fertilizer application workload and not high in economic benefit. The liquid organic fertilizer is conductive to the growth of a tea tree, and is capable of improving the nutritional structure of the soil, increasing the water retention capacity and fertilizer retention capacity of the soil, improving the cold resistance and draught resistance of the tea, improving the yield of tea leaves, reducing the fertilizer application workload of the tea, increasing the benefit, and ensuring that the generated tea leaf buds are full and uniform so that the produced tea is pure in taste, fragrant in mouth feel and good in aftertaste. The fertilizer comprises the following raw materials in percentages by weight: 64-66% of organic matter leaching liquor, 4.5-5.5% of alginic acid, 28-31% of deep-fried dough cake, 0.08-0.12% of lysine, 0.2-0.3% of vitamin, and 10000 tea garden soil modifying microorganisms per liter.