Fertilization amount calculation method based on relationship between soil available nutrient amount and crop nutrient demand
A technology of quick-acting nutrients and calculation methods, applied in the field of soil fertilizer science, can solve the problems of long time-consuming crop nutrient application and easy failure of experiments, etc., and achieve the effects of simple and fast calculation, easy success of experiments, and short time-consuming
Pending Publication Date: 2022-06-24
TARIM UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the existing method takes a long time to determine the amount of crop nutrient application and the problem that the experiment is easy to fail, and provides a method for calculating the amount of fertilizer applied based on the relationship between the amount of soil basic fertilizer supply and the amount of crop nutrient demand
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach 1
[0008] Embodiment 1: This embodiment is a method for calculating the amount of fertilization based on the relationship between the quantity of soil available nutrients and the nutrient demand of crops. In the present invention, the fertilizer nutrient utilization rate (the amount of nutrients absorbed by plants from the fertilizer accounts for the percentage of the amount of fertilizer nutrients applied to the soil) and the soil effective nutrient correction coefficient (the amount of available nutrients absorbed by crops from the soil accounts for the amount of the available nutrients in the soil) The percentage of the total amount), all take the value of 50%. Therefore, when the crop has the highest yield (target yield), its nutrient uptake (X max ) and fertilizer nutrient application rate (X m ) and soil available nutrient content (X s ) is related as:
[0009] X max =50%×(X m +X s ) (1)
[0010] Equation (1) can be transformed into a formula for calculating the amou...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a fertilization amount calculation method based on the relationship between the soil available nutrient quantity and the crop nutrient demand quantity, relates to a crop nutrient application amount calculation method, and belongs to the field of soil fertilizer science. The value of the fertilizer nutrient utilization rate of the target yield and the value of the soil available nutrient correction coefficient are both 50%, and the fertilization amount calculation method based on the relationship between the soil basic fertilizer supply amount and the crop nutrient demand quantity is as follows: Xm = 2 * (Xmax-Xs) (1), in the formula, Xm is the fertilizer nutrient application amount, and the unit is kg.hm <-2 >; xmax is the crop target yield nutrient demand, and the unit is kg.hm <-2 >; xs is the soil available nutrient content, and the unit is kg.hm <-2 >. The method for calculating the crop nutrient application amount is provided on the basis of the crop target yield nutrient demand quantity (Xmax) and the soil available nutrient content (Xs), the nutrient application amount can be simply and rapidly calculated, the consumed time is short, and the experiment is easy to succeed.
Description
technical field [0001] The invention relates to a calculation method of crop nutrient application amount, belonging to the field of soil fertilizer science. Background technique [0002] At present, the methods for determining the amount of crop nutrient application mainly include nutrient balance method, fertilizer effect function method, soil fertility grade method, nutrition diagnosis method, etc.; these methods require field experiments, take a long time (at least one growing season), and are susceptible to fertilization The experiment is not ideal or the experiment fails due to the influence of factors such as unreasonable quantity settings. How to quickly and easily determine the nutrient application rate of crops has always been a key problem that has not been solved in related researches. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to solve the problem that the existing method takes a long time to determine the nutrient application am...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11A01C21/00
CPCG06F17/11A01C21/007
Inventor 迟春明周燕马龙
Owner TARIM UNIV