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Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof

A technology of alfalfa and special fertilizer, applied in the direction of fertilization method, application, fertilization device, etc., can solve the problems of economic loss, low basic soil fertility, poor water and fertilizer retention ability, etc., and achieves strong pertinence, reasonable nutrient distribution ratio, The effect of high fertilizer utilization rate

Inactive Publication Date: 2012-06-27
SHANDONG AGRI SUSTAINABLE DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, affected by the layout and policies of the traditional planting industry, the production bases of alfalfa in Shandong Province are mostly distributed in the Yellow River floodplain, mainly in low-to-medium yield fields. Poor capacity; in the process of alfalfa production, long-term excessive application of quick-acting chemical fertilizers according to the existing technology, the seasonal utilization rate of fertilizer nutrients is very low, the utilization rate of nitrogen fertilizer is only 30-35%, the utilization rate of phosphorus fertilizer is about 10-20%, and the utilization rate of potassium fertilizer The utilization rate is 35-50%, which brings huge economic losses and serious environmental pollution at the same time

Method used

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  • Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof
  • Mid-low yield field alfalfa special-purposed fertilizer, preparation method thereof, and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A special fertilizer for alfalfa, with urea, monoammonium phosphate, potassium sulfate and weathered coal as basic raw materials, the mass parts of each component are: 4 parts of urea, 45 parts of monoammonium phosphate, 8 parts of potassium sulfate, and 38 parts of weathered coal , 5 parts of granulation additive bentonite.

[0037] The preparation method is as follows:

[0038] The urea, monoammonium phosphate, potassium sulfate, weathered coal raw material and granulation additive bentonite of each raw material component are all pulverized to a particle diameter of 0.1-0.3 mm, stirred and mixed evenly, and sent to a disc granulator to start granulation. After granulation, it is dried at 60-70°C until the moisture content is ≤10wt%, and the granules with a diameter of 1-4.75 mm are sieved to be the finished product of special fertilizer for alfalfa.

[0039] The nutrient content of the prepared alfalfa special fertilizer is N:P 2 o 5 : K 2 O=7:20:4.

[0040] This...

Embodiment 2

[0042] A special fertilizer for alfalfa, with urea, monoammonium phosphate, potassium sulfate and weathered coal as raw materials, the mass parts of each component are: 3 parts in urea, 34 parts in monoammonium phosphate, 6 parts in potassium sulfate, 52 parts in weathered coal, 5 parts of granulation additive bentonite.

[0043] The preparation method is the same as in Example 1.

[0044] The nutrient content of the prepared alfalfa special fertilizer is N:P 2 o5 : K 2 O=5:15:3.

[0045] This special fertilizer for alfalfa is especially suitable for application on saline-alkali land with medium soil fertility, and the application rate of base fertilizer is 1000kg / hm 2 , topdressing fertilizer application rate 500kg / hm 2 , topdressing fertilizer application rate after mowing 200kg / hm 2 , water after fertilizing.

Embodiment 3

[0047] A special fertilizer for alfalfa, with urea, monoammonium phosphate, potassium chloride and peat soil as raw materials, the mass parts of each component are: 4 parts of urea, 45 parts of monoammonium phosphate, 7 parts of potassium chloride, and 39 parts of peat soil Parts, 5 parts of granulation additive bentonite.

[0048] The preparation method is the same as in Example 1.

[0049] The nutrient content of the prepared alfalfa special fertilizer is N:P 2 o 5 : K 2 O=7:20:4.

[0050] This special fertilizer for alfalfa is especially suitable for application on non-saline-alkali land with low soil fertility, and the application rate of base fertilizer is 1000kg / hm 2 , topdressing fertilizer application rate 500kg / hm 2 , topdressing fertilizer application rate after mowing 200kg / hm 2 , water after fertilizing.

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Abstract

The invention discloses a mid-low yield field alfalfa special-purposed fertilizer, a preparation method thereof, and an application method thereof. The special-purposed fertilizer comprises raw materials of nitrogen fertilizer, phosphate fertilizer, potash fertilizer, and organic matters. The fertilizer is prepared through pan granulation. A mass ratio of the nutrients in the special-purposed fertilizer is represented by that N:P2O5:K2O=5-7:15-20:3-4. The alfalfa special-purposed fertilizer provided by the invention can be applied as a basal fertilizer or a top dressing. The fertilizer is advantaged in simple production technology, low cost, environment-friendliness, high utilization rate, and substantial yield-increasing effect. The fertilizer satisfies requirements of high yield and high-quality production of alfalfa plantation in saline-alkali lands or non-saline-alkali lands with middle or low land capabilities.

Description

technical field [0001] The invention relates to the field of fertilizer production, in particular to a special fertilizer for alfalfa in middle and low-yield fields and its preparation and application method. Background technique [0002] Alfalfa (Medicago stativa L.) is a perennial leguminous forage, and it is also the forage species with the largest planting area in my country and even in the world. Because of its strong adaptability, high yield, and good quality, it is known as the "King of Forage Grass". 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] CN101099432A (CN200710055909.7) discloses a drought-resistant and antifreeze cultivation method for alfalfa, in which it is announced that the fertilization time is to apply all the fertilizers once before soil cultivation, and the fertilizers can be compound fer...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01C21/00
Inventor 盛亦兵张晓冬王国良隋学艳贾春林
Owner SHANDONG AGRI SUSTAINABLE DEV INST
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