52results about How to "Reduce the frequency of topdressing" patented technology

The invention discloses a fertilizer slow-release synergistic agent and a preparation method thereof. The fertilizer slow-release synergistic agent comprises the following raw materials in percentage by mass: 0.1-20 % of polyaspartic acid and slat thereof, 0.1-10 % of urease inhibitor, 0.1-30 % of nitrification inhibitor, 0.03-5 % of plant growth regulating agent, 10-35 % of soil regulating agent and 10-80 % of carrier. The fertilizer slow-release synergistic agent disclosed by the invention is mainly used for the slow-release synergism of a compound mixing fertilizer, is increased in the utilization rate of the fertilizer, and is capable of effectively improving the soil, and the soil moisture can be preserved; and when the fertilizer slow-release synergistic agent is used, the fertilizer slow-release synergistic agent can be added into a material feeding system or an enveloping drum together with the fertilizer raw materials and mixed with the fertilizer raw materials, the effect of slow-release synergism can be realized, and the dosage of the fertilizer slow-release synergistic agent is 4-8 kg per ton fertilizer.

The invention relates to a long-acting special fertilizer for oil-tea camellia and a preparation method thereof. The long-acting special fertilizer is characterized in that: the fertilizer is prepared from the following raw materials in percentage by weight: 31.3 to 42.9 percent of nitrogen fertilizer, 8.5 to 8.7 percent of phosphate fertilizer, 26.7 to 32.0 percent of potassic fertilizer, 2.6 to 5.1 percent of medium-micro fertilizer, 10 to 15 percent of organic additive and 4 to 19.4 percent of controlled release additive. The special fertilizer for the oil-tea camellia is produced according to the absorption characteristics of the oil-tea camellia on N, P and K, is suitable for the absorption of N, P and K by the oil-tea camellia, has reasonable proportion and long fertilizer efficiency period, can be used as base fertilizer and additional fertilizer, has high nutrient utilization rate, and is safe and environment-friendly; the special fertilizer can remarkably improve the utilization rate of nitrogen, the increasing range is over 8 percent, and the fertilizer efficiency period is as long as 90 to 150 days; and under the same nutrient condition, the special fertilizer can increase the yield of oil-tea camellia fruits by about 10 percent, can remarkably promote the quality of the oil-tea camellia fruits, and promotes the oil content by over 0.6 percent.

The invention discloses a novel efficient biochar-based water-retaining dedicated crop fertilizer, prepared from, by weight, 100-300 parts of urea, 350-500 parts of monoammonium phosphate, 100-300 parts of potassium chloride, 0-15 parts of calcium magnesium phosphate fertilizer, 40-100 parts of biochar, 0-30 parts of EDTA (ethylene diamine tetraacetic acid) chelated trace elements, 0-15 parts of polyglutamic acid, and 0-100 parts of additives. The preparation process of the fertilizer is simple, the fertilizer contains biochar, polyglutamic acid and various trace nutrients and can improve soil environmental conditions, land utilization and land maintenance are combined, crop yield is increased, and the fertilizer has high efficiency and zero pollution.

The invention provides a compound microbial fertilizer for reducing underground root-knot nematodes and a method for preparing the compound microbial fertilizer, and relates to the field of agricultural fertilizers. The compound microbial fertilizer for reducing the underground root-knot nematodes comprises organic fertilizers, inorganic fertilizers, microbial preparations and adhesive agents. The compound microbial fertilizer for reducing the underground root-knot nematodes and the method have the advantages that physical structures of soil can be regulated by inorganic nitrogen, phosphorus and potassium materials, animal manure and organic matters of humic acid, and abundant nutrition such as carbon sources, nitrogen sources and phosphorus sources can be provided for microorganisms in the soil; the purposes of killing underground pests and inhibiting diseases can be achieved by the compound microbial preparations, high-quality nutrition and biological stimulin can be provided for the microorganisms in the soil and crops, and accordingly the compound microbial fertilizer and the method are favorable for growth of plants.

The invention provides a lotus rhizome interplanting Nasturtium officinale R.Br. and late rice high efficiency cultivation method mainly comprising the following steps: 1, selecting Yexiangyou rice seed, Lianxiang no.1 lotus rhizome seed and first generation Nasturtium officinale R.Br. seed; 2, selecting fertile soil field with strong water retention fertilizer conservation capability as the interplanting field; 3, planting at proper time; 4, reasonably closely planting; 5, reasonably applying fertilizers; 6, timely controlling insect and diseases. The method can realize interplanting of the lotus rhizome, Nasturtium officinale R.Br. and late rice, and can greatly reduce base fertilizer and topdressing application amount; the Nasturtium officinale R.Br. interplanting method can protect the lotus rhizome for safe overwintering, can improve soil temperature, thus advancing lotus rhizome seed germination growth time, and the lotus rhizome harvesting time can be advanced by 15-20 days when compared with other methods; the Nasturtium officinale R.Br. can be pressed into the mud in April of the next year so as to serve the lotus rhizome green fertilizer, thus reducing lotus rhizome additional fertilizer frequency and fertilizer amount; the late rice paddy rice tillering is normal, and the interplanting paddy rice needs no pesticide sprinkling, no fertilizer is needed, and the throw inserting seedling number is no difference from the double cropping late rice.

The invention relates to a clean-production fertilization method of controlled-release nitrogen fertilizer for paddy-rice seedling raising, is mainly applied to the synchronous fertilization during the paddy-rice seedling raising, and belongs to the technical fields of the reasonable amount-reduced application of novel fertilizer and agricultural clean production. The clean-production fertilization method is characterized by comprising the following steps of (1), taking a seedling raising tray for later use, taking the controlled-release nitrogen fertilizer for later use, and taking paddy-rice seedling raising nutrient soil for later use; (2), according to the paddy-rice seedling transplantation row spacing of 30cm is multiplied by 12cm and the seedling transplantation area, which is 36m<2> to 42m<2>, of the seedling for each tray, controlling to use 110g to 120g of seed for each tray and using 1.05kg to 1.1kg of the controlled-release nitrogen fertilizer for each tray; (3), taking and adding 2L of the paddy-rice seedling raising nutrient soil into the seedling raising tray, flattening, and drenching by using water; weighing, taking and uniformly sprinkling the controlled-release nitrogen fertilizer on the paddy-rice seedling raising nutrient soil. As the controlled-release nitrogen fertilizer has the characteristic of being long in release period and is also concentrated near a root system of paddy rice, in comparison with a conventional fertilization method, the use level of nitrogen fertilizer in the clean-production fertilization method can be decreased by 30 to 40 percent.

The invention discloses pesticide fertilizer capable of killing insects, preventing diseases and enhancing plant immunity. The pesticide fertilizer is prepared from the following raw materials in percentage by weight: 0.35 to 0.55 percent of chlorantraniliprole.thiamethoxam, 0.11 to 0.25 percent of chlorantraniliprole, 0.15 to 0.30 percent of thiamethoxam, 35 to 55 percent of basic fertilizer, 4.5to 6.5 percent of a dispersant, 1.5 to 3.5 percent of a wetting agent and 25 to 30 percent of filler. According to the pesticide fertilizer disclosed by the invention, the number of times of plant insect killing and top application is reduced, the labor load of farmers is alleviated and the yield of grains is increased; the pesticide fertilizer also contains a lot of element nitrogen and variousmicroelements, such as zinc, manganese, boron and magnesium, so that the immunity of plants is effectively enhanced and the insect-killing and disease-preventing effects are improved.

The invention relates to a special fertilizer for maca planting and a preparation method thereof, belonging to the technical field of fertilizers. The special fertilizer for maca planting comprises the following components in parts by weight: 25-35 parts of chicken manure, 8-12 parts of plant ash, 4-6 parts of cake fertilizer, 9-12 parts of calcium magnesia phosphate fertilizer, 0.01-0.05 part of boric fertilizer, 0.04-0.08 part of zinc fertilizer and 40-50 parts of crop straw. The preparation method of the special fertilizer for maca planting is simple; and the prepared product can be directly applied as a base fertilizer, contains multiple necessary minor elements for crops, including zinc, boron, molybdenum and the like, can reduce the pesticide application amount, lowers the cost, promotes the development of the crops, enhances the photosynthesis utilization ratio, can reduce the supplementary fertilizer consumption by 25-40%, has the advantages of scientific raw material proportioning and low production cost, fills up the blank in the field of special fertilizers for maca planting, and is easy for popularization and application.

The invention discloses multifunctional carbon-based organic-inorganic compound fertilizer and a preparation method thereof. The compound fertilizer is prepared from the following components in percentage by weight: 5 to 10 percent of urea, 5 to 10 percent of formaldehyde, 25 to 35 percent of mushroom dregs or lotus leaf black charcoal, 20 to 30 percent of calcium magnesium phosphate, 10 to 20 percent of potassium sulfate, 5 to 15 percent of attapulgite and 5 to 15 percent of kaolin; finally, a finished product of granulated multifunctional carbon-based organic-inorganic compound fertilizer isprepared. A compound fertilizer formula disclosed by the invention has the functions of providing nutrients and regulating acidity; the problem of soil degradation brought by an existing fertilizingformula is solved; the multifunctional carbon-based organic-inorganic compound fertilizer has the functions of improving soil, increasing yield and quality of crops and improving the quality of the crops.

The invention discloses a compound fertilizer for camellia flower. The compound fertilizer is prepared from the following raw materials in parts by weight: 20 to 40 parts of monopotassium phosphate, 20 to 30 parts of calcium ammonium nitrate, 8 to 18 parts of potassium-magnesium salt, 8 to 16 parts of diaminoferric xanthohumate, 30 to 40 parts of bean dregs, 45 to 65 parts of pigeon feces, 25 to 45 parts of straw powder, 8 to 18 parts of peanut shell powder, 20 to 40 parts of radish leaf, 20 to 30 parts of humic acid, 3 to 6 parts of kieselguhr, 10 to 18 parts of calcium sulfate, 4 to 8 parts of calcium magnesium silicate, 2 to 4 parts of zinc sulfate, 4 to 10 parts of zeolite powder, 4 to 8 parts of montmorillonite compound gelatin, 2 to 4 parts of Chinese medicine residue and 0.5 to 1.5 parts of EM bacteria solution. The compound fertilizer is directly mixed with soil before the camellia flower is cultivated, so that later topdressing times can be reduced, moreover, toxic and harmful substances in the soil can be effectively adsorbed, soil hardening is relieved, and pests and bacteria in the soil, which affect the growth of the camellia flower, are effectively inhibited.