Fertilizer containing rhizobium inoculant special for Chinese milk vetch and preparation and application thereof
A rhizobia agent, milk vetch technology, applied in the field of fertilizer production and application, special fertilizer for milk vetch, can solve the problems of low yield, poor planting benefit, extensive management, etc.
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[0027] The present invention contains the preparation method of the milk vetch special fertilizer of rhizobia agent, and the steps are as follows:
[0028] (1) Preparation of urea-coated rhizobia agent composition:
[0029] A, prepare the rhizobia fermented liquid of milk vetch according to prior art, fermented liquid contains 3.5~4.5×10 rhizobium live bacteria counts 8 pieces / ml.
[0030] B. According to the mass ratio of fermented liquid: sterilized peat soil = 1: 3-4, use sterilized peat soil to adsorb the fermented liquid into a solid rhizobium agent.
[0031] C. Add ammonium molybdate accounting for 1.5 to 2.5% of the solid rhizobium agent in the solid rhizobium agent prepared in step B according to the mass ratio, mix evenly, and use a disc or roller to granulate at 40°C to 50°C. The diameter is 2 to 4 mm, and the water content is 23 to 28 wt%. The rhizobia agent particles mixed with the nutrient element molybdenum are obtained.
[0032] D, urea is melted into urea li...
specific Embodiment approach
[0044] The present invention will be further described below in conjunction with the examples, but not limited thereto. The amounts and parts of raw materials in the examples are parts by mass, and all percentages are percentages by mass.
[0045] The milk vetch rhizobium strains used in the examples are: Mesorhizobium huakuii, purchased from China Agricultural Microorganism Culture Collection Center (ACCC), ACCC strain preservation numbers 13196 and 13197.
[0046] Peat soil: Jilin Hairui Peat Soil Development Company, organic matter content greater than 70wt%.
[0047] 5% humic acid-coated urea, produced by Shandong Kingenta Ecological Engineering Co., Ltd., uses granular urea as the core fertilizer, sprays a layer of binder on the outside of the core fertilizer, and then sprays a layer of air-dried and pulverized weathered coal, Repeat above-mentioned process after curing, reach binding agent and account for 1% of core fertilizer quality, and weathered coal accounts for 5% o...
Embodiment 1
[0048] Embodiment 1: contain the milk vetch special fertilizer of rhizobia agent, raw material component is as follows:
[0049] Urea coated rhizobia agent composition 150kg,
[0050] 5% humic acid coated urea 150kg,
[0051] Diammonium phosphate 320kg,
[0052] Potassium chloride 240kg,
[0054] Magnesium sulfate 60kg.
[0055] Preparation:
[0056] (1) Preparation of urea-coated rhizobia agent composition:
[0057] A, prepare rhizobium fermented liquid by prior art, liquid contains 3.62 * 10 rhizobium live bacteria counts 8 pieces / ml.
[0058] Activation of strains: the purchased interrhizobium strain ACCC13196 was activated at 26° C. for 4 days with slant culture medium. The medium formula is: 10 grams of sucrose, 3 grams of yeast powder, 0.4 grams of potassium dihydrogen phosphate, 0.2 grams of magnesium sulfate, 0.2 grams of sodium chloride, 0.5 grams of calcium chloride, 15 grams of agar, 1 gram of trace element solution (trace elem...
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