CN103081624B - Partitioned management method of soil nutrients - Google Patents
Partitioned management method of soil nutrients Download PDFInfo
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- CN103081624B CN103081624B CN2013100376941A CN201310037694A CN103081624B CN 103081624 B CN103081624 B CN 103081624B CN 2013100376941 A CN2013100376941 A CN 2013100376941A CN 201310037694 A CN201310037694 A CN 201310037694A CN 103081624 B CN103081624 B CN 103081624B
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Abstract
The invention provides a partitioned management method of soil nutrients. The partitioned management method comprises the steps of carrying out spatial overlay analysis on a topographic map, a soil map, an administrative map, a distribution map of set crops in a surveyed area and a spatial rank distribution map of nutrients in the digitized surveyed area by adopting a spatial overlay method to generate a primary partitioned management map of soil nutrients of the set crops in the surveyed area; carrying out merging operation on pattern spots in the primary partitioned management map of the soil nutrients in accordance with a preset rule and a main soil property similarity principle to obtain a total partitioned management unit of more than one variety of soil nutrients; and calculating the fertilizing amount of soil nutrients required for normal growth of each set plant in the total partitioned management unit of various varieties of soil nutrients according to a target output method. The partitioned management method can be used for quantitatively describing soil properties and space change situations in a targeted manner and has an important meaning in terms of improving the fertilizer utilization efficiency in a farmland, improving field management and especially implementing 'precision agriculture' in China.
Description
Technical field
The invention belongs to the soil nutrient administrative skill field in agricultural meteorology, be specifically related to a kind of soil nutrient partition management method.
Background technology
Having managed soil nutrient, rationally applied fertilizer, is the key technical problem that is related to China's agricultural sustainable development.The situation of soil nutrient directly affects output and the quality of Plants.Therefore, the research soil nutrient status provides rational fertilizer recommendations for the soil nutrient state, is prerequisite and the basis that advances China's precision agriculture to implement.
Soil nutrient has obvious stochastic modeling, in prior art, usually adopt traditional statistical method to describe the stochastic modeling of soil nutrient, that is: experimental field representative one of survey region selection by the researchist, to experimental field be divided in the plane the zone of some comparatively homogeneous by the soil texture, average by calculating sample, variance etc. are explained the Spatial Variability of soil nutrient, but the method has only been considered the power of degree of variation, basically be qualitative description, be difficult to quantitative description soil characteristic and spatial variations situation thereof.Simultaneously, the soil attribute value is unable to estimate in unsampled zone, can only be substituted with region-wide mean value, finally cause accurately not high problem of Analysis on Soil Nutrients.
Summary of the invention
Defective for the prior art existence, the invention provides a kind of soil nutrient partition management method, quantitative description soil characteristic and spatial variations situation targetedly, thereby take to quantification the measures such as nutrient management, it is to improving the farmland fertilizer utilization ratio, improve field management, significant to the enforcement of China's " precision agriculture " especially.
The technical solution used in the present invention is as follows:
The invention provides a kind of soil nutrient partition management method, comprise the following steps:
S1 gathers studied regional soil sample by the setting regions size; Wherein, described studied zone is used for plantation setting crop;
S2, the content of the soil index of the described studied regional soil sample that analysis gathers;
S3 with the spatial variability structure of the described soil index of Geostatistical analysis methods analyst, carries out golden Kriging interpolation analysis in gram to the soil index with spatial variability architectural feature, generates corresponding spatial distribution map;
S4 based on the soil Index grading standard of setting, changes described spatial distribution map into nutrient spatial level distribution plan that polygon forms;
S5, adopt the space stacking method to carry out spatial overlay analysis to topomap, pedological map, administrative map, the described setting crop in digitized described studied zone at distribution plan and the described nutrient spatial level distribution plan in described studied zone, the soil nutrient partition management that generates the described setting crop in described studied zone is just schemed;
S6, according to MAIN SOILS similar performance principle, to described soil nutrient partition management just the figure spot in figure carry out union operation by preset rules, obtain the above soil nutrient partition management of a class total unit; Wherein, the total unit of the described soil nutrient partition management of each class has following common property: relatively consistent soil physical and chemical property, relatively consistent fertilizer provision from soil fertilizer conservation performance and relative consistent soil nutrient control measures;
S7 calculates the rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit according to method of fertilization for target yield.
Preferably, described setting crop is rubber; Described studied zone is Hainan Province; The soil Index grading standard of described setting is Soils of Hainan Province Index grading standard.
Preferably, in S1, described setting regions size is the 2.5km*2.5km grid.
Preferably, in S2, described soil index comprises full nitrogen, full phosphorus, full potassium, alkali-hydrolyzable nitrogen, rapid available phosphorus, available potassium.
Preferably, in S6, the figure spot in the first figure of described soil nutrient partition management is carried out union operation by preset rules is specially:
The figure spot merging of area less than 10 mu entered in contiguous large figure spot.
Preferably, after S7, also comprise:
The rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit that calculates is stored in memory device;
When the inquiry request message of the fertilising optimised quantity that receives the specific region, inquire about described memory device, obtain and show the fertilising optimised quantity of described specific region.
Beneficial effect of the present invention is as follows:
Soil nutrient partition management method provided by the invention has the following advantages:
(1) rubber plantation, Hainan Province is divided into 2732,28 class administrative units, the supporting nitrogen of every class administrative unit, phosphorus, potassium rate of fertilizer application proportioning, meticulousr than the proportioning of the original 4 kinds of rubber special fertilizers in Hainan Province, more can effectively manage rubber plantation, Hainan Province soil fertility targetedly.
(2) can directly inquire about the concrete rate of fertilizer in rubber plantation, each department, Hainan Province, facilitate glue agriculture/plant glue enterprise that the achievement of rubber plantation nutrient partition management is directly applied to rubber plantation soil application management, to improving the farmland fertilizer utilization ratio, improve field management, significant to the enforcement of China's " precision agriculture " especially.
Description of drawings
Fig. 1 is the schematic flow sheet of soil nutrient partition management method provided by the invention.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the invention provides a kind of soil nutrient partition management method, comprise the following steps:
S1 gathers studied regional soil sample by the setting regions size; Wherein, described studied zone is used for plantation setting crop;
Wherein, the setting regions size is set according to the realistic accuracy demand, for example the 2.5km*2.5km grid.
S2, the content of the soil index of the described studied regional soil sample that analysis gathers;
Wherein, the soil index can comprise full nitrogen, full phosphorus, full potassium, alkali-hydrolyzable nitrogen, rapid available phosphorus, available potassium.
S3 with the spatial variability structure of the described soil index of Geostatistical analysis methods analyst, carries out golden Kriging interpolation analysis in gram to the soil index with spatial variability architectural feature, generates corresponding spatial distribution map;
Wherein, Ke Lijin (Kriging) method of interpolation claims again space autocovariance optimal interpolation method, and it is a kind of optimal interpolation method with the naming of South Africa Mineral Engineering teacher D.G.Krige.Ke Lijinfa is widely used in the fields such as groundwater simulation, soil cartography, is a kind of geological statistics gridding method of great use.
S4 based on the soil Index grading standard of setting, changes described spatial distribution map into nutrient spatial level distribution plan that polygon forms;
S5, adopt the space stacking method to carry out spatial overlay analysis to topomap, pedological map, administrative map, the described setting crop in digitized described studied zone at distribution plan and the described nutrient spatial level distribution plan in described studied zone, the soil nutrient partition management that generates the described setting crop in described studied zone is just schemed;
S6, according to MAIN SOILS similar performance principle, to described soil nutrient partition management just the figure spot in figure carry out union operation by preset rules, obtain the above soil nutrient partition management of a class total unit; Wherein, the total unit of the described soil nutrient partition management of each class has following common property: relatively consistent soil physical and chemical property, relatively consistent fertilizer provision from soil fertilizer conservation performance and relative consistent soil nutrient control measures;
Wherein, the figure spot in the first figure of described soil nutrient partition management being carried out union operation by preset rules is specially: the figure spot merging of area less than 10 mu entered in contiguous large figure spot.
S7 calculates the rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit according to method of fertilization for target yield.
After S7, also comprise:
The rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit that calculates is stored in memory device;
When the inquiry request message of the fertilising optimised quantity that receives the specific region, inquire about described memory device, obtain and show the fertilising optimised quantity of described specific region.
Because natural rubber is the important strategic materials of China and the raw material of industry, to plant under the limited background of puddle earth area, China's natural rubber is supplied with and is ensured and must improve to realize by per unit area yield, and the soil managements such as fertilising are the requisite measures that improves per unit area yield.
And Hainan Province is the natural rubber production base of China's maximum, the nineties in 20th century, the scholar is arranged, and (what waits eastwards, 1991, tropical crops research, 02:40-48) according to soil parent material and plantation characteristics of soil fertility difference, rubber plantation, Hainan Province is divided into lacks phosphorus potassium rich magnesium iron district (I class), lack phosphorus magnesium rich potassium sial district (II class), lack four classes such as the rich iron aluminium district (III) of phosphorus and nitrogen stress phosphorus potassium magnesium silicon-rich areas (IV class).Simultaneously, formulated four kinds of corresponding hainan rubbers tree composite fertilizer specials (what waits eastwards, 1992, tropical crops research, 02:14-25), its stimulation ratio reach 4.2%～6.9% (Li Shicong, woods are encouraged and wash one's hair, 1997, Chinese countryside science and technology, 08:15).
In recent years, along with the popularization of rubber tree high-yield variety, the reform of tapping system etc., the soil fertility downtrending of rubber plantation, Hainan Province is (Mai Quanfa etc., 2009, Tropical China agricultural, 01:38-41 obviously; Yang Zhaoqun, 2010, University Of Hainan's Master's thesis: 16-35).Therefore, existing Hainan Province's rubber gardenization and corresponding rubber special fertilizer product can not satisfy the needs that natural rubber high yield and soil fertility keep.
In the present invention, take rubber plantation, Hainan Province as research object, press the 2.5km*2.5km grid and gather rubber plantation, Hainan Province pedotheque; Analyze the content of the full nitrogen of the pedotheque that gathers, full phosphorus, full potassium, alkali-hydrolyzable nitrogen, rapid available phosphorus, these six kinds of soil indexs of available potassium; Then analyze by above-mentioned S3-S5, obtain the soil nutrient partition management and just scheme; Then according to MAIN SOILS similar performance principle, the figure spot merging of area less than 10 mu entered in contiguous large figure spot, obtain at last 28 class soil nutrient partition management total unit, amount to 2732 rubber plantation nutrient partition management subelements, have relatively consistent soil physical and chemical property, fertilizer provision from soil fertilizer conservation performance in the total unit of all kinds of soil nutrient partition managements, can take relatively consistent soil nutrient control measures.
Press the hierarchical name of nitrogen, phosphorus, potassium nutrition, the 28 total unit of soil nutrient partition management, rubber plantation, class Hainan Province are named, wherein, single class area accounts for the soil nutrient partition management total unit of rubber plantation, Hainan Province total area more than 1% and is respectively 4/3/4,4/3/5,3/3/5,3/3/4,3/4/5,5/3/4,4/4/4,4/4/5,3/4/4,4/3/6,4/4/6,5/3/5,3/4/6,2/4/4,2/3/4, specifically referring to table 1.
The total cell distribution of rubber plantation, table 1 Hainan Province soil nutrient partition management
In sum, soil nutrient partition management method and system provided by the invention has the following advantages:
(1) rubber plantation, Hainan Province is divided into 2732,28 class administrative units, the supporting nitrogen of every class administrative unit, phosphorus, potassium rate of fertilizer application proportioning, meticulousr than the proportioning of the original 4 kinds of rubber special fertilizers in Hainan Province, more can effectively manage rubber plantation, Hainan Province soil fertility targetedly.
(2) can directly inquire about the concrete rate of fertilizer in rubber plantation, each department, Hainan Province, facilitate glue agriculture/plant glue enterprise that the achievement of rubber plantation nutrient partition management is directly applied to rubber plantation soil application management, to improving the farmland fertilizer utilization ratio, improve field management, significant to the enforcement of China's " precision agriculture " especially.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (5)
1. a soil nutrient partition management method, is characterized in that, comprises the following steps:
S1 gathers studied regional soil sample by the setting regions size; Wherein, described studied zone is used for plantation setting crop;
S2, the content of the soil index of the described studied regional soil sample that analysis gathers;
S3 with the spatial variability structure of the described soil index of Geostatistical analysis methods analyst, carries out golden Kriging interpolation analysis in gram to the soil index with spatial variability architectural feature, generates corresponding spatial distribution map;
S4 based on the soil Index grading standard of setting, changes described spatial distribution map into nutrient spatial level distribution plan that polygon forms;
S5, adopt the space stacking method to carry out spatial overlay analysis to topomap, pedological map, administrative map, the described setting crop in digitized described studied zone at distribution plan and the described nutrient spatial level distribution plan in described studied zone, the soil nutrient partition management that generates the described setting crop in described studied zone is just schemed;
S6, according to MAIN SOILS similar performance principle, to described soil nutrient partition management just the figure spot in figure carry out union operation by preset rules, obtain the above soil nutrient partition management of a class total unit; Wherein, the total unit of the described soil nutrient partition management of each class has following common property: relatively consistent soil physical and chemical property, relatively consistent fertilizer provision from soil fertilizer conservation performance and relative consistent soil nutrient control measures;
S7 calculates the rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit according to method of fertilization for target yield;
After S7, also comprise:
The rate of fertilizer application of the required soil nutrient of every strain described setting crop normal growth in all kinds of described soil nutrient partition management total unit that calculates is stored in memory device;
When the inquiry request message of the fertilising optimised quantity that receives the specific region, inquire about described memory device, obtain and show the fertilising optimised quantity of described specific region.
2. soil nutrient partition management method according to claim 1, is characterized in that, described setting crop is rubber; Described studied zone is Hainan Province; The soil Index grading standard of described setting is Soils of Hainan Province Index grading standard.
3. soil nutrient partition management method according to claim 1, is characterized in that, in S1, described setting regions size is the 2.5km*2.5km grid.
4. soil nutrient partition management method according to claim 1, is characterized in that, in S2, described soil index comprises full nitrogen, full phosphorus, full potassium, alkali-hydrolyzable nitrogen, rapid available phosphorus, available potassium.
5. soil nutrient partition management method according to claim 1, is characterized in that, in S6, the figure spot in the first figure of described soil nutrient partition management carried out union operation by preset rules be specially:
The figure spot merging of area less than 10 mu entered in contiguous large figure spot.
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| US10387977B2 (en) | 2014-02-25 | 2019-08-20 | Pioneer Hi-Bred International, Inc. | Environmental management zone modeling and analysis |
| CN105432205A (en) * | 2014-06-05 | 2016-03-30 | 扬州市土壤肥料站 | Soil attribute parameter estimation method, fertilizer application program recommended method and fertilizer preparation program recommended apparatus |
| CN104459087A (en) * | 2014-12-05 | 2015-03-25 | 广西壮族自治区林业科学研究院 | Forest soil nutrient classification method |
| CN105557166A (en) * | 2016-01-26 | 2016-05-11 | 石河子大学 | Drip irrigation cotton field nitrogen application management method based on GIS |
| CN110807604B (en) * | 2019-11-13 | 2022-04-19 | 山东省农业科学院科技信息研究所 | Method for evaluating soil fertility of greenhouse |
| CN111141808B (en) * | 2020-01-20 | 2022-04-29 | 中国科学院合肥物质科学研究院 | Soil available state analysis method based on electrophoresis analysis technology and soil nutrient grade evaluation method thereof |
| CN112470650A (en) * | 2020-11-24 | 2021-03-12 | 江西省农业科学院土壤肥料与资源环境研究所 | Fertilizer preparation method and system |
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