CN103539591A - Controlled-release urea fertilizer and preparation method thereof - Google Patents

Abstract

The invention discloses a controlled-release urea fertilizer and a preparation method thereof. The controlled-release urea fertilizer is prepared from the following raw materials in parts by weight: 30-35 parts of urea, 20-25 parts of borax, 5-6 parts of boric acid, 2-4 parts of manganese sulfate, 1-2 parts of ammonium molybdate, 1-2 parts of sodium sulfate, 15-20 parts of calcium carbonate, 8-12 parts of kaolin, 7-8 parts of actinolite powder, 2-3 parts of sodium sulfite, 10-12 parts of brown sugar, 2-3 parts of hupeh anemone herbs, 1-3 parts of passiflora wilsonii hemsl., 8-10 parts of swamp mahogany leaves, 7-8 parts of sophora japonica roots, 3-4 parts of huon pine, 1-2 parts of phyla nodiflora, 1-2 parts of all-grass of arcuaate iolet and 1-2 parts of roots of useful viburnum. The controlled-release urea fertilizer contains the Chinese herbal medicines including hupeh anemone herbs, passiflora wilsonii hemsl., swamp mahogany leaves, sophora japonica roots, huon pine, phyla nodiflora, all-grass of arcuaate iolet and roots of useful viburnum, so that the consumption of pesticides for crops and the controlled pests can be reduced; urea is combined with calcium carbonate, kaolin and actinolite powder, so that the release speed of the fertilizer is reduced, and a controlled release effect is taken; the direct contact between soil and the fertilizer can be isolated, the nutrient release of urea can be controlled, the soil can be improved, and the soil can not be polluted.

Description

A kind of slow-release carbamide fertilizer and preparation method thereof

Technical field

The invention belongs to compound manure technical field, relate in particular to a kind of slow-release carbamide fertilizer and preparation method thereof.

Background technology

Fertilizer, be to provide the essential nutritive element of one or more plants, improve soil property, one class material of the level of increasing soil fertility, one of basic substance of agriculture production, fertilizer type is a lot, there is nitrogen, phosphorus, the chemical fertilizer such as potassium, there is dregs of beans, animal excrement, the organic fertilizer such as agricultural wastes, also have the bio-feritlizers such as biological bacteria, also has silicon, magnesium, iron, boron, the secondary and micro-element fertilizers such as selenium, Different Crop is due to different habits, different growth phases, all not identical to the demand of fertilizer, therefore, need to be in conjunction with different crop varieties, study different fertilizer, be starved of, to improve quality and the speed of growth of crop, increasing corps nutrient is worth with health care, promote human health, to promote the well-being of mankind.

Summary of the invention

The object of this invention is to provide a kind of slow-release carbamide fertilizer and preparation method thereof.

Technical scheme of the present invention is as follows:

Slow-release carbamide fertilizer, the weight part of its constitutive material is: urea 30-35, borax 20-25, boric acid 5-6, manganous sulfate 2-4, ammonium molybdate 1-2, sodium sulfate 1-2, calcium carbonate 15-20, kaolin 8-12, Tremoliteor Tremoliteasbestos powder 7-8, S-WAT 2-3, brown sugar 10-12, Hupeh Anemone Herb 2-3, Herba Passiflorae Wilsonii 1-3, Swamp Mahogany Leaf 8-10, Chinese scholartree root 7-8, yew 3-4, mistake river rattan 1-2, Herba Violae arcuatae 1-2 and Root of Useful Viburnum 1-2.

Slow-release carbamide fertilizer, the weight part of its constitutive material is: urea 32, borax 22, boric acid 5.5, manganous sulfate 3, ammonium molybdate 1.5, sodium sulfate 1.5, calcium carbonate 18, kaolin 10, Tremoliteor Tremoliteasbestos powder 7.5, S-WAT 2.5, brown sugar 11, Hupeh Anemone Herb 2.5, Herba Passiflorae Wilsonii 2, Swamp Mahogany Leaf 9, Chinese scholartree root 7.5, yew 3.5, mistake river rattan 1.5, Herba Violae arcuatae 1.5 and Root of Useful Viburnum 1.5.

The preparation method of slow-release carbamide fertilizer, comprises the following steps:

(1) by the weight part of constitutive material, take Hupeh Anemone Herb, Herba Passiflorae Wilsonii, Swamp Mahogany Leaf, Chinese scholartree root, yew, cross river rattan, Herba Violae arcuatae and Root of Useful Viburnum; Co-grinding is even, then adds the EM microbial inoculum of the 0.1-0.3% of total mass to mix, then adds suitable quantity of water and brown sugar heap fermentation 10-15 days, turning, and granulation is stand-by;

(2) take by weight urea, heating and melting, obtains the urea of molten state, then in going, adds the fermented product after above-mentioned granulation, stirs 20-30 minute, then adds by weight wherein other surplus stock, stirs, and dry, granulation obtains.

Beneficial effect of the present invention:

In the present invention, contain herbal medicine Hupeh Anemone Herb, Herba Passiflorae Wilsonii, Swamp Mahogany Leaf, Chinese scholartree root, yew, cross river rattan, Herba Violae arcuatae and Root of Useful Viburnum, the agricultural chemicals that can reduce farm crop is used and the prevention and control of plant diseases, pest control, the combination of urea and calcium carbonate, kaolin and Tremoliteor Tremoliteasbestos powder, its release rate slows down, play controlled-release function, the present invention can isolate the direct contact of Soil and Fertilizer, controls the release of urea nutrient, improvement soil, and can not pollute soil.

Embodiment

Embodiment 1: slow-release carbamide fertilizer, the weight part of its constitutive material (jin) is: urea 32, borax 22, boric acid 5.5, manganous sulfate 3, ammonium molybdate 1.5, sodium sulfate 1.5, calcium carbonate 18, kaolin 10, Tremoliteor Tremoliteasbestos powder 7.5, S-WAT 2.5, brown sugar 11, Hupeh Anemone Herb 2.5, Herba Passiflorae Wilsonii 2, Swamp Mahogany Leaf 9, Chinese scholartree root 7.5, yew 3.5, mistake river rattan 1.5, Herba Violae arcuatae 1.5 and Root of Useful Viburnum 1.5.

The preparation method of slow-release carbamide fertilizer, comprises the following steps:

(1) by the weight part of constitutive material, take Hupeh Anemone Herb, Herba Passiflorae Wilsonii, Swamp Mahogany Leaf, Chinese scholartree root, yew, cross river rattan, Herba Violae arcuatae and Root of Useful Viburnum; Co-grinding is even, and then add 0.2% EM microbial inoculum of total mass to mix, then add suitable quantity of water and brown sugar heap fermentation 10-15 days, turning, granulation is stand-by;

(2) take by weight urea, heating and melting, obtains the urea of molten state, then in going, adds the fermented product after above-mentioned granulation, stirs 20-30 minute, then adds by weight wherein other surplus stock, stirs, and dry, granulation obtains.

Fertilizer of the present invention is to the even effect such as paddy rice, wheat, sweet potato, sugarcane, vegetables, tealeaves, melon and fruit, garden strain crop and flowers, for base manure such as wheat, corns, use 40-50 kilogram for every mu, wheat can increase production 16-20%, corn can increase production 22-25%, has good effect.

Claims (3)

1. a slow-release carbamide fertilizer, is characterized in that the weight part of its constitutive material is: urea 30-35, borax 20-25, boric acid 5-6, manganous sulfate 2-4, ammonium molybdate 1-2, sodium sulfate 1-2, calcium carbonate 15-20, kaolin 8-12, Tremoliteor Tremoliteasbestos powder 7-8, S-WAT 2-3, brown sugar 10-12, Hupeh Anemone Herb 2-3, Herba Passiflorae Wilsonii 1-3, Swamp Mahogany Leaf 8-10, Chinese scholartree root 7-8, yew 3-4, mistake river rattan 1-2, Herba Violae arcuatae 1-2 and Root of Useful Viburnum 1-2.

2. slow-release carbamide fertilizer according to claim 1, is characterized in that the weight part of its constitutive material is: urea 32, borax 22, boric acid 5.5, manganous sulfate 3, ammonium molybdate 1.5, sodium sulfate 1.5, calcium carbonate 18, kaolin 10, Tremoliteor Tremoliteasbestos powder 7.5, S-WAT 2.5, brown sugar 11, Hupeh Anemone Herb 2.5, Herba Passiflorae Wilsonii 2, Swamp Mahogany Leaf 9, Chinese scholartree root 7.5, yew 3.5, mistake river rattan 1.5, Herba Violae arcuatae 1.5 and Root of Useful Viburnum 1.5.

3. the preparation method of slow-release carbamide fertilizer as claimed in claim 1, is characterized in that comprising the following steps:

(1) by the weight part of constitutive material, take Hupeh Anemone Herb, Herba Passiflorae Wilsonii, Swamp Mahogany Leaf, Chinese scholartree root, yew, cross river rattan, Herba Violae arcuatae and Root of Useful Viburnum; Co-grinding is even, then adds the EM microbial inoculum of the 0.1-0.3% of total mass to mix, then adds suitable quantity of water and brown sugar heap fermentation 10-15 days, turning, and granulation is stand-by;

(2) take by weight urea, heating and melting, obtains the urea of molten state, then in going, adds the fermented product after above-mentioned granulation, stirs 20-30 minute, then adds by weight wherein other surplus stock, stirs, and dry, granulation obtains.