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A method for determining the fertilization amount of safflower Dajinyuan and its corresponding fertilization plan

A safflower big gold dollar and method-determined technology, which is applied in the field of agricultural and forestry fertilizers, can solve the problems of nitrogen fertilizer sensitivity and high nitrogen fertilizer utilization rate, and achieve the effects of good tobacco leaf quality, increased output value, and good economic benefits

Active Publication Date: 2022-07-12
YUNNAN TOBACCO CO LTD KUNMING BRANCH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Honghua Dajinyuan variety has a high nitrogen utilization rate and is sensitive to nitrogen fertilizers. It is difficult to guide fertilization through the traditional fuzzy concept of "controlling nitrogen, stabilizing phosphorus, and increasing potassium"

Method used

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  • A method for determining the fertilization amount of safflower Dajinyuan and its corresponding fertilization plan
  • A method for determining the fertilization amount of safflower Dajinyuan and its corresponding fertilization plan
  • A method for determining the fertilization amount of safflower Dajinyuan and its corresponding fertilization plan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Determine the amount of fertilizer:

[0032] A. Prediction of the amount of nitrogen fertilizer: the soil available nitrogen content n is 161mg / kg, and the previous crop is highland barley, the range of nitrogen application amount N is predicted to be 15kg / hm²-30kg / hm².

[0033] B. Determination of nitrogen fertilizer dosage: soil organic matter content factor a is 1.8%, Na is 30kg / hm²; planting interval is two years, Nb is 15kg / hm²; the application rate of decomposed farmyard manure is 12500kg / hm², Nc1 is 6kg / hm², and the field When the film is removed, Nc2 is 1.5kg / hm², so Nc=Nc1+Nc2=7.5kg / hm²; the tobacco planting soil is sandy soil, and Nd is +7.5kg / hm².

[0034] C. Accounting for the amount of nitrogen fertilizer: Substitute the values ​​of Na, Nb, Nc, and Nd into the formula to calculate the nitrogen application amount N,

[0035] Nitrogen application rate N (kg / hm²)=(30+15) / 2-7.5+7.5=22.5kg / hm².

[0036] D. Accounting of the amount of phosphate fertilizer and p...

Embodiment 2

[0044] Determine the amount of fertilizer:

[0045] A. Prediction of the amount of nitrogen fertilizer: the soil available nitrogen content n is 135mg / kg, and the previous crop is broad bean, the range of nitrogen application amount N is predicted to be 22.5kg / hm²-37.5kg / hm².

[0046] B. Determination of nitrogen fertilizer dosage: soil organic matter content factor a is 3.5%, Na is 22.5kg / hm²; planting interval is one year, Nb is 30kg / hm²; the application rate of decomposed farmyard manure is 9000kg / hm², Nc1 is 4.5kg / hm² , the film is removed in the field stage, and Nc2 is taken as 3.0kg / hm², so Nc=Nc1+Nc2=7.5kg / hm²; the tobacco planting soil is loam, and Nd is taken as 0.

[0047] C. Accounting for the amount of nitrogen fertilizer: Substitute the values ​​of Na, Nb, Nc, and Nd into the formula to calculate the nitrogen application amount N,

[0048] Nitrogen application rate N (kg / hm²)=(22.5+30) / 2-7.5+0=18.75kg / hm².

[0049] D. Accounting of the amount of phosphate fertil...

Embodiment 3

[0057] Determine the amount of fertilizer:

[0058] A. Prediction of the amount of nitrogen fertilizer: the soil available nitrogen content n is 110mg / kg, and the previous crop is pea, the range of nitrogen application amount N is predicted to be 22.5kg / hm²-37.5kg / hm².

[0059] B. Determination of nitrogen fertilizer dosage: the soil organic matter content factor a is 2.5%, and Na is 30kg / hm²; for continuous planting within one year, Nb is 37.5kg / hm²; the application rate of decomposed farmyard manure is 7000kg / hm², Nc1 is 0, and the field stage When the film is removed, Nc2 is 0, so Nc=Nc1+Nc2=0; the tobacco planting soil is clay, and Nd is -7.5kg / hm².

[0060] C. Accounting for the amount of nitrogen fertilizer: Substitute the values ​​of Na, Nb, Nc, and Nd into the formula to calculate the nitrogen application amount N,

[0061] Nitrogen application amount N (kg / hm²)=(30+37.5) / 2-0-7.5=26.25kg / hm².

[0062] D. Accounting of the amount of phosphate fertilizer and potassium ...

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Abstract

The invention discloses a method for determining the amount of safflower fertilization and a corresponding fertilization scheme, belonging to the technical field of agricultural and forestry fertilizers. The method for determining the amount of fertilization includes the steps of predicting the amount of nitrogen fertilizer, determining the amount of nitrogen fertilizer, calculating the amount of nitrogen fertilizer, calculating the amount of phosphate fertilizer and potassium fertilizer, and determining the amount of fertilizer. On the basis of accurately determining the amount of nitrogen, the amount of phosphorus and potassium should be calculated to determine the specific application amount of each fertilizer. The fertilization plan includes the steps of preparing fertilizer, applying base fertilizer, and topdressing. When topdressing, the application plan of magnesium-potassium fertilizer and silicon-potassium fertilizer is optimized in the cluster period and the prosperous period, and the top-dressing fertilizer is adjusted according to the abundance and deficiency of boron and zinc in the soil. species and dosage. The method for determining the amount of fertilization and the corresponding fertilization scheme of the present invention can accurately achieve balanced fertilization of the safflower Dajinyuan variety, increase the yield of tobacco leaves by 8-15%, increase the output value by 8-15%, and improve the quality of tobacco leaves, and can be Tobacco farmers and tobacco production enterprises have brought good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of agricultural and forestry fertilizers, and in particular relates to a method for determining the fertilization amount of safflower and a corresponding fertilization scheme. Background technique [0002] Safflower Dajinyuan tobacco leaf is a nationally famous high-quality tobacco leaf, a typical representative of "flavor" style flue-cured tobacco, and an indispensable raw material for the well-known "Yunyan" in the country. However, the safflower Dajinyuan variety is a very "difficult to plant and hard to roast" variety of flue-cured tobacco. Among them, the biggest reason for "difficult to plant" is that it is quite difficult to achieve "balanced fertilization". When planting tobacco leaves, nitrogen fertilizer, as an important factor in determining the yield and value of tobacco leaves, has a very critical influence on the average price of tobacco leaves, the proportion of high-quality tobacco and the ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00
CPCA01C21/007A01C21/005Y02P60/21
Inventor 徐兴阳刘海李杰王保兴高锐徐济仓李跃平端永明王亮
Owner YUNNAN TOBACCO CO LTD KUNMING BRANCH
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