Krav på jordprovtagning i New York

Q: Hur många jordprover behövs för ett 40 hektar stort fält i New York?

Inom ramen för Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series: Ett enhetligt fält på 100 hektar behöver minst 7 sammansatta prover på högst 15 hektar vardera, och minst 70 kärnor totalt, 10 per prov.

Statliga riktlinjer: Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series.

Jordprovtagning i New York: frekvens, area, djup och kärnprovtagning

Hur ofta behöver man ta jordprover i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series Official guidance At least once every 2 to 3 years.

När på året bör jordprover tas i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series Official guidance Best in fall after harvest of the main crop; spring or summer also possible. Sample around the same month each year. 5 to 6 weeks after fertilizer or manure, or sod termination, for pH, general fertility and the soil nitrogen test.

Hur många hektar kan ett jordprov täcka i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series Official guidance Generally 15 acres (6.07 ha) or less per sample. Grid cells often 0.5 to about 6 acres.

Hur djupt bör jordprover tas i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series Official guidance Conventional tillage 0 to 8 inches (0 to 20.32 cm). Pasture 0 to 6 inches (0 to 15.24 cm). No-till or minimum till: 0 to 1 inch (0 to 2.54 cm) for pH and 0 to 6 inches (0 to 15.24 cm) for nutrients.

Hur många kärnor går det till ett jordprov i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series Official guidance About two cores per acre (field acres times 2), at least 10 to 15 on smaller fields. Grid cells and zones: an average of two cores per acre.

Hur många jordprover behövs för ett 40 hektar stort fält i New York?

Cornell Nutrient Management Spear Program, Agronomy Fact Sheet Series: Ett enhetligt fält på 100 hektar behöver minst 7 sammansatta prover på högst 15 hektar vardera, och minst 70 kärnor totalt, 10 per prov.

Prover och kärnor för alla fältstorlekar

Soil sampling rules in New York, with the exact wording of each source
Country / region	Purpose / programme	Time / frequency	Area per sample	Method	Depth	Cores	Status and source
United States
New YorkUnited StatesNew York only. Other states set their own rules.	Soil sampling for field cropsCornell Nutrient Management Spear Program, Agronomy Fact Sheet Series	Repeat At least once every 2 to 3 years Season Best in fall after harvest of the main crop; spring or summer also possible. Sample around the same month each year. Wait 5 to 6 weeks after fertilizer or manure, or sod termination, for pH, general fertility and the soil nitrogen test	Generally 15 acres (6.07 ha) or less per sample. Grid cells often 0.5 to about 6 acres.	Zigzag across the field when one sample represents the whole field. Grid sampling for larger fields and zone management; grid results can define management zones that are sampled from then on.	Conventional tillage 0 to 8 inches (0 to 20.32 cm). Pasture 0 to 6 inches (0 to 15.24 cm). No-till or minimum till: 0 to 1 inch (0 to 2.54 cm) for pH and 0 to 6 inches (0 to 15.24 cm) for nutrients.	About two cores per acre (field acres times 2), at least 10 to 15 on smaller fields. Grid cells and zones: an average of two cores per acre.	Official guidanceCornell Agronomy Fact Sheet #1, Soil Sampling for Field Crops (PDF)
Who it applies to, the exact wording and every source Who it applies to Advice for New York field crops from Cornell University College of Agriculture and Life Sciences. Not law. In force from Under review Legal text Cornell University, Agronomy Fact Sheet #1, Soil Sampling for Field Crops (2020) The wording in the source Timing It is recommended to take soil samples at least once every 2 to 3 years. Fact Sheet #1, Establish a Regular Sampling Time Soil samples are best taken in the fall after harvest of the main season crop but can also be taken in the spring or summer. Fact Sheet #1, Establish a Regular Sampling Time Consistently sampling around the same month of the year will help reduce seasonal variation in soil tests Fact Sheet #1, Establish a Regular Sampling Time For soil pH, general soil fertility, and determination of soil nitrogen supply potential with the Illinois Soil Nitrogen Test, do not sample within 5-6 weeks of fertilizer or manure application or sod termination. Fact Sheet #1, Obtain a Representative Sample Area per sample Generally, each sample should represent 15 acres or less, and separate samples should be collected from areas with different crop history, fertility management, crop growth, slope, etc. Fact Sheet #1, Obtain a Representative Sample Grid cell size often ranges from 0.5 to about 6 acres. Fact Sheet #1, Obtain a Representative Sample Method If a sample is needed to represent the entire field, and no prior information is available, take samples along a zig-zag pattern through the field. Fact Sheet #1, Obtain a Representative Sample Grid sampling may be used for larger fields and when zone-based management is desired. Fact Sheet #1, Obtain a Representative Sample Grid cells can be sampled separately over time or used to develop larger management zones, which can then be sampled separately in future years. Fact Sheet #1, Obtain a Representative Sample Depth For field crops, under conventional tillage, sample the top 0-8 inches (Figure 1). Fact Sheet #1, Sample the Proper Depth For pastures, it is recommended to sample the top 0-6 inches. For no-till or minimum-till cropping systems, take two samples: one for pH from the 0-1 inch depth and another from the 0-6 inch depth for nutrient analyses. Fact Sheet #1, Sample the Proper Depth Cores For best results, multiply the total acreage of the field by 2 to know roughly how many cores to combine across the field, with a 10-15 core minimum for smaller fields. Fact Sheet #1, Obtain a Representative Sample Each management zone should be sampled at an intensity that targets an average of two soil cores per acre or a full cup of soil to subsample. Fact Sheet #1, Obtain a Representative Sample Sources Cornell Agronomy Fact Sheet #1, Soil Sampling for Field Crops (PDF) Guidance Sources re-checked every two months, last update October 2026. Reviewed by GeoPard editorial team.

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Krav på jordprovtagning i New York

Krav på jordprovtagning i New York

Jordprovtagning i New York: frekvens, area, djup och kärnprovtagning

Hur ofta behöver man ta jordprover i New York?

När på året bör jordprover tas i New York?

Hur många hektar kan ett jordprov täcka i New York?

Hur djupt bör jordprover tas i New York?

Hur många kärnor går det till ett jordprov i New York?

Hur många jordprover behövs för ett 40 hektar stort fält i New York?

The wording in the source

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