Nitragin controlled release fertilizer special for alfalfa, and preparation and application of nitragin controlled release fertilizer

A rhizobia agent and controlled-release fertilizer technology, applied in the field of leguminous forage controlled-release fertilizer, can solve the problems of low overwintering rate of alfalfa, lack of labor force, low yield, etc., and achieve the effects of increasing alfalfa yield and improving inoculation efficiency.

Active Publication Date: 2012-06-20
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN101904265A (201010233703.0) provides a method for cultivating alfalfa in light saline-alkali cultivated land, which solves the problems of low seedling emergence rate, low yield and low wintering rate of alfalfa when the ex

Method used

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  • Nitragin controlled release fertilizer special for alfalfa, and preparation and application of nitragin controlled release fertilizer
  • Nitragin controlled release fertilizer special for alfalfa, and preparation and application of nitragin controlled release fertilizer
  • Nitragin controlled release fertilizer special for alfalfa, and preparation and application of nitragin controlled release fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: special rhizobia agent controlled release fertilizer for alfalfa, raw material components are as follows:

[0043]

[0044] Preparation:

[0045] (1) Preparation of urea-coated rhizobia agent composition:

[0046] A, prepare rhizobia fermented liquid:

[0047] According to the prior art, the Sinorhizobium meliloti ACCC17665 strain was cultured and activated with mannitol-yeast powder slant medium at 28°C to 30°C for 3 days, and it was observed that the slant was plump, the surface was moist and smooth, and it was mucus-like. When it is colorless and transparent, it is used as an activated strain for the next liquid culture. The formula of the mannitol-yeast powder slant medium is: 14.5 grams of mannitol, 5.2 grams of yeast powder, 0.4 grams of potassium dihydrogen phosphate, 0.1 grams of magnesium sulfate, 0.3 grams of sodium chloride, 0.5 grams of calcium chloride, and 15 grams of agar. grams, 1000 grams of water.

[0048] Take 200 grams of bean sp...

Embodiment 2

[0054] Embodiment 2: special rhizobia agent controlled release fertilizer for alfalfa, raw material components are as follows:

[0055]

[0056] The preparation method is the same as in Example 1.

Embodiment 3

[0057] Embodiment 3: special rhizobia agent controlled release fertilizer for alfalfa, raw material components are as follows:

[0058]

[0059] Preparation:

[0060] (1) Preparation of urea-coated rhizobia agent composition:

[0061] A. The preparation of the fermentation broth of Sinorhizobium meliloti ACCC17665 was the same as in Example 1.

[0062] B. Get 40 kg of fermented liquid and add it into 140 kg of sterilized peat soil, and mix thoroughly.

[0063] C, get 5.5 kilograms of ferrous sulfate and 2.8 kilograms of ammonium molybdates and add in the mixture prepared in step B, mix well.

[0064] D. Transfer the mixture prepared in step C into a disc granulator for granulation, the drying temperature is 40°C-50°C, the particle size is 2-4 mm, and the water content of the finished granules is 29.1%.

[0065] E. Take 13.5 kg of urea and put it into the urea melter, quickly melt it into urea liquid, use the pressure pump to spray the urea liquid through the nozzle to th...

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Abstract

The invention relates to a nitragin controlled release fertilizer special for alfalfa, and preparation and application of the nitragin controlled release fertilizer. The fertilizer comprises the following raw materials: urea coated nitragin composition, 5 percent humic acid coated urea, sulfur and high polymer coated urea, 5 percent recycling thermoplastic resin coated urea, 6 percent recycling thermoplastic resin coated urea, 8 percent recycling thermoplastic resin coated urea, 5 percent modified epoxy resin coated diammonium phosphate on a urea base coat, 5 percent modified epoxy resin coated potassium nitrate on the urea base coat, diammonium phosphate and potassium chloride. The invention also provides a method for preparing the controlled release fertilizer special for the alfalfa. According to the controlled release fertilizer and the preparation method, trace elements required by a nitragin, root nodule growth and nitrogen fixation are coated in a urea hull together, and coatednitrogen fertilizers in release periods of phosphorus and potassium fertilizers and different nutrients are allocated reasonably according to a fertilizer requiring rule of the alfalfa, so that the controlled release fertilizer special for the alfalfa, which has double functions of inoculation and fertilization, is formed. The controlled release fertilizer is valid for two years after being applied at a time, so that labor force can be saved, and the yield of the alfalfa can be increased.

Description

technical field [0001] The invention relates to a controlled-release fertilizer for leguminous herbage, in particular to a special controlled-release fertilizer for alfalfa containing a rhizobia agent and its preparation and application. Background technique [0002] Alfalfa (Medicago sativa L.) is a leguminous high-quality forage grass with high forage quality, economic value and ecological adaptability, and is one of the most important forage grasses in the world. my country is a country with a shortage of protein feed resources, and the development of high-quality alfalfa powder has become a new technology industry for the development of protein feed resources. [0003] CN102204439A (201110145340.X) discloses a pretreatment method for alfalfa seeds to improve seedling vigor and saline-alkali resistance. First, the seeds are dried at room temperature with silica gel to reduce the water content of the seeds to 4.59-7.09%. The seeds were sealed with aluminum foil, placed in...

Claims

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Application Information

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IPC IPC(8): C05G3/08A01G1/00C05G3/90
Inventor 陈宏坤徐淑班李玲陈德清
Owner KINGENTA ECOLOGICAL ENG GRP
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