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Alkaline organic fertilizer, preparation method and applications thereof

An organic fertilizer and alkaline technology, applied in the field of alkaline organic fertilizer and its preparation, can solve the problems of affecting soil nutrient availability, excessive soil salinity, lowering pH value, etc. acidifying effect

Inactive Publication Date: 2019-05-07
湖南慧谷农业生态研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the temptation of one-sided pursuit of high yield, a large amount of high-content chemical fertilizers and unripe animal manure, human excrement, etc. are applied, resulting in excessive salt in the soil
Because these salts cannot be fully leached, they accumulate in a large amount in the soil plow layer, resulting in secondary salinization and acidification of the soil, thereby reducing the pH value, affecting the availability of soil nutrients, and causing physiological diseases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 10% of rice stalks through a 2mm sieve to 4% potassium hydroxide solution, heat at 100°C for 30min, and carry out solid-liquid separation after cooling to 20°C to obtain pretreated straw and Pretreatment of waste liquid.

[0035] (2) After the pH of the pretreated straw is adjusted to neutral, it is composted and fermented in the fermentation device with chicken manure, pig manure, tea meal, and potassium fulvic acid in a ratio of 70:10:10:5:5. The rotation speed of the inner rotor is 30 rpm. After the fermentation is completed, the straw is crushed and passed through a 2mm sieve to obtain organic fertilizer. The fermentation temperature of the composting fermentation is 60°C, and the fermentation time is 30 days.

[0036] (3) Add 20% humic acid raw powder to the pretreatment waste liquid, stir evenly and heat to boiling for 40 minutes, then carry out solid-liquid separation, and take filtrate A for later use.

[0037] (4) Add calcium chloride to the filtrate A...

Embodiment 2

[0041] (1) Add 1% of rice stalks through a 2mm sieve into a 15% sodium hydroxide solution, heat at 121°C for 60 minutes, and carry out solid-liquid separation after cooling to 30°C to obtain pretreated straw and Pretreatment of waste liquid.

[0042] (2) Adjust the pH of the pretreated straw to neutral, and compost and ferment the straw, chicken manure, pig manure, tea meal, and potassium fulvic acid in a fermentation device at a ratio of 70:5:10:5:10. The rotation speed of the rotor in the device is 45 rpm. After the fermentation is completed, the straw is crushed through a 2mm sieve to obtain straw organic fertilizer; the fermentation temperature of the composting fermentation is 55°C, and the fermentation time is 20 days.

[0043](3) Add 10% humic acid raw powder to the pretreatment waste liquid, stir evenly, heat to boiling for 30 minutes, and then carry out solid-liquid separation to obtain filtrate A.

[0044] (4) Add calcium chloride to the filtrate A until the precipi...

Embodiment 3

[0048] (1) Add 20% of rice stalks through a 2mm sieve into a 1% potassium hydroxide solution, heat at 80°C for 10min, and carry out solid-liquid separation after cooling to 30°C to obtain pretreated straw and Pretreatment of waste liquid.

[0049] (2) Adjust the pH of the pretreated straw to neutral, and compost and ferment the straw, chicken manure, pig manure, tea meal, and potassium fulvic acid in a fermentation device at a ratio of 70:20:20:15:15. The rotation speed of the rotor in the device is 60 rpm. After the fermentation is completed, the straw is crushed and passed through a 2mm sieve to obtain straw organic fertilizer; the fermentation temperature of the composting fermentation is 65°C, and the fermentation time is 7 days.

[0050] (3) Add 30% humic acid raw powder to the pretreatment waste liquid, stir evenly and heat to boiling for 60 minutes, then carry out solid-liquid separation to obtain filtrate A.

[0051] (4) Add calcium chloride to filtrate A until the pr...

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Abstract

The invention provides an alkaline organic fertilizer, a preparation method and applications thereof. The preparation method comprises: pre-treating crop straw; mixing the pretreated straw, chicken manure, pig manure, Camellia pancake and potassium fulvate, and carrying out composting fermentation to obtain a straw organic fertilizer and a pretreatment waste liquid; adding humic acid raw powder tothe pretreatment waste liquid, heating, carrying out solid-liquid separation to obtain a filtrate A, and adding calcium chloride to the obtained filtrate A to precipitate organic matters so as to obtain a mixture B; mixing limestone, dolomite, ammonium dihydrogen phosphate and chitin to obtain a mixture C; and finally uniformly mixing the straw organic fertilizer, the mixture B and the mixture Cto obtain the alkaline organic fertilizer. According to the present invention, the obtained alkaline organic fertilizer has the functions of the traditional organic fertilizer, further has functions of acidification resistance, succession cropping resistance and the like, and can increase the yield of crops in succession cropping planting.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to an alkaline organic fertilizer and its preparation method and application. Background technique [0002] Contrary to crop rotation, continuous cropping refers to the planting method of growing the same crops in one year or consecutive years on the same field. Crop continuous cropping will produce continuous cropping obstacles, mainly due to crop self-toxicity, soil beneficial microorganisms decrease, harmful microorganisms increase, soil-borne diseases aggravated, soil properties deteriorate, secondary salinization and serious soil acidification are caused. Some organic substances produced by crop root exudation or plant decomposition, such as vanillic acid, syringic acid, ferulic acid, cinnamic acid, etc., can inhibit the growth of crops, resulting in poor crop growth and even reduced yield. Due to the special soil environment formed by continuous cropping, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04A01C21/00C05G3/60C05G3/80
Inventor 谭石勇文亚雄谭武贵张冬雪邱尧
Owner 湖南慧谷农业生态研究院有限公司
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