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Organic fertilizer containing middle-low grade powdered rock phosphate and preparation method and application thereof

A phosphate rock powder, low-grade technology, applied in the new field of agriculture, can solve the problems of high Mn content and low phosphate fertilizer utilization rate, achieve good growth potential and nutrient absorption, improve phosphate fertilizer utilization rate, and increase the effect of soil organic fertilizer application

Inactive Publication Date: 2018-11-13
HUNAN INST OF AGRI ENVIRONMENT & ECOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The soil in the south is mostly acidic or strongly acidic, and the phosphorus deficiency in the soil is more serious, and the soil in the south has strong leaching, and the content of Fe, Al, and Mn in the soil is high, which can easily fix the available phosphorus in the fertilizer. The utilization rate of phosphorus fertilizer is extremely low, only 10 %about

Method used

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  • Organic fertilizer containing middle-low grade powdered rock phosphate and preparation method and application thereof
  • Organic fertilizer containing middle-low grade powdered rock phosphate and preparation method and application thereof
  • Organic fertilizer containing middle-low grade powdered rock phosphate and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An organic fertilizer containing medium and low-grade phosphate rock powder, comprising:

[0037]

[0038] The above-mentioned components are calculated on a dry weight basis.

[0039] The phosphate rock powder is medium and low-grade phosphate rock powder, containing 18% to 28% of total phosphorus, and having a fineness of 90% passing through a 100-mesh sieve;

[0040] The straw decomposing agent and phosphorus solubilizing bacteria agent are provided by Budweiser International Biological Co., Ltd. Straw-decomposing strains include Geotrichum, Monosporum, Aspergillus oryzae, Bacillus licheniformis, Trichoderma viride, Basidiomycetes, Ascomycetes, and Thermoascus aurantiacus in fungi; phosphorus-solubilizing bacteria include Bacillus phosphate-solubilizing, Potassium bacteria, Aspergillus niger, lactic acid bacteria, yeast.

[0041] Fully mix various raw materials according to the above proportions, the C / N after mixing is 25, adjust the water content of the compos...

Embodiment 2

[0044] Application of an organic fertilizer containing medium and low-grade phosphate rock powder as a base fertilizer for crops

[0045] The fertilizer effect test of the organic fertilizer containing medium and low-grade phosphate rock powder was carried out with hybrid early rice Liangyou 15. Set up 3 treatments, the nitrogen, phosphorus, and potassium application rates of each treatment are the same, which are 12 kg / mu, 7.5 kg / mu, and 8 kg / mu respectively. Among them, 40% of nitrogen fertilizer is used as base fertilizer, and 60% is used as topdressing fertilizer. It was applied twice at the tillering stage and the booting stage, and the amount of nitrogen fertilizer applied twice accounted for 30% of the total amount of nitrogen applied. Organic fertilizers, phosphate fertilizers, and potassium fertilizers were all used as base fertilizers, and the base fertilizers for the three treatments were as follows:

[0046]Treatment 1 (control): apply 10.4 kg of urea, 46.9 kg of ...

Embodiment 3

[0054] Application of an organic fertilizer containing medium and low-grade phosphate rock powder as base fertilizer for oil crops

[0055] Rapeseed, an oil crop, is sensitive to phosphorus. Fengyou 520 was used to carry out the fertilizer effect test of organic fertilizer containing medium and low grade phosphate rock powder. Set up 2 processes:

[0056] Treatment 1: Apply 35 kg of 15-15-15 compound fertilizer per mu as base fertilizer; Treatment 2, apply 75 kg of organic fertilizer containing phosphate rock powder, 25 kg of compound fertilizer, and 1.14 kg of urea as base fertilizer per mu. In addition, 5 kg of compound fertilizer and 2 kg of urea were used as top dressing for each treatment during the bolting period, and other managements were the same.

[0057] The test results are shown in Table 2. After the application of organic fertilizer containing phosphorous rock powder, the content of soil organic matter increased, the incidence of Sclerotinia sclerotiorum decreas...

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Abstract

The invention belongs to the technical field of novel agriculture, and particularly relates to an organic fertilizer containing a middle-low grade powdered rock phosphate and a preparation method andan application thereof. Agricultural wastes such as livestock manure and straws, reed slag discharged from a paper mill and organic wastes like edible mushroom are fermented and decomposed and appliedto the soil as a base fertilizer or a seedling substrate. The fertilizer contains a large amount of organic matter, moderately supplies phosphorus nutrition to crops, can significantly improves the phosphorus nutrition status at the seedling stage and increase the utilization rate of the phosphate fertilizer to provide a good micro-ecological environment for growth and development of seedlings. At the same time, the process and the cost of agricultural production and fertilization are reduced, the utilization rate of the phosphate fertilizer and the use of the organic fertilizer are increased, the resource saving is promoted, and the organic fertilizer is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of new agricultural technologies, and specifically relates to an organic fertilizer containing medium and low-grade phosphate rock powder, a preparation method and application thereof, with the purpose of improving the utilization rate of phosphate fertilizer and the use of organic fertilizer, and promoting resource conservation and environmental friendliness. technical background [0002] The livestock and poultry manure and straw produced in China each year reach 3.7 billion tons and 700 million tons respectively, accounting for 68% and 18% of the total agricultural waste respectively. In addition, there are a large amount of domestic garbage and agricultural product processing waste. If livestock and poultry manure is directly discharged into the environment without treatment, it will not only waste a lot of organic nutrients, but also pollute the environment, becoming one of the three major pollution sources along...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05F17/00C05G3/80
CPCC05B17/00C05F17/00C05G3/00C05G3/80C05F3/00C05F5/002C05F11/02C05F11/08Y02W30/40
Inventor 卢红玲彭福元鲁耀雄崔新卫高鹏陈冬祥
Owner HUNAN INST OF AGRI ENVIRONMENT & ECOLOGY
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