What is productivity index for farmland?
According to results, while most of the study area’s land productivity (45.4%-800.0 ha) consist of excellent and good classes (I and II) in terms of agricultural uses, it was found that 19.7% (346.6 ha) of study area has average (III), 25.1% (441.6) of it has poor (IV) and rest of it (9.8%) has extremely poor or nil (V …
What do soil productivity numbers mean?
The optimum productivity index (PI) can be used to determine the prime agricultural class of any soil type in the state. The rating system determines an A, B, and C class of soil. Productivity ratings of 133-147 represent Class A, 117-132 represent Class B, and ratings of 100-116 represent class C.
How do you find soil pi?
PI values for all soils currently classified by the NRCS can be accessed from the web site: http://www.drainageindex.msu.edu.
What is a good soil pi?
The PI indicates a soil’s suitability to produce a crop. Certified soil PIs range from an 82 PI, on the low end of production, to a 130 PI, on the highest end of production. Most of Illinois’ over 800 soils are assigned a PI.
What does PI mean in agriculture?
ordinally based soil Productivity Index (PI).
What does soil productivity 1 mean?
Class I (1) soils have slight limitations that restrict their use. Class VI (6) soils have severe limitations that make them generally unsuited to cultivation and that limit their use mainly to pasture, range, forestland, or wildlife food and cover.
What is a good CSR rating?
It is an index ranging from 0 to 100 with CSR values of 100 being the most productive.
What type of soil is most productive?
Loam soils
Loam soils seem to be the jackpot for all farmers. They include clay, sand, and silt and is the best possible combination of all negative and positive features. It is regarded as the best type of soil and is more gardener-friendly than any others as it does not require any additional investments.
What is a PI farm?
The PI index number is assigned based on several soil characteristics including organic matter, subsoil, drainage, slope, and on location in northern or southern Illinois. The PI helps give us an idea of what a farm and its soil types can produce and help determine value.
How is farmland cash rent calculated?
A cropland cash rental rate can be computed by multiplying the average CSR2 by a rental rate per CSR2 point. For example, assume a typical rental rate per CSR2 index point of $2.75 for your county. A tract of land with a CSR2 of 80 would have a rental rate of $220 ($2.75 × 80 CSR2 = $220) per acre.
What is a class 3 soil?
Class 3 soils have severe limitations that reduce the choice of plants or require special conservation practices, or both. Class 4 soils have very severe limitations that restrict the choice of plants or require very careful management, or both.
What is type AB and C soil?
Type B soil has medium unconfined compressive strength; between 0.5 and 1.5 tons per square foot. Type C soil is the least stable type of soil. Type C includes granular soils in which particles don’t stick together and cohesive soils with a low unconfined compressive strength; 0.5 tons per square foot or less.
What is in Bulletin 811?
Bulletin 811 provides crop yields and productivity indices under an optimum level of management used by the top 16% of farmers in Illinois in the 1990s. Prime agricultural land classes (Class A, Class B, and Class C) previously provided in Circular 1156 (Soil Productivity in Illinois) were not included in Bulletin 811.
What are the crop yields in Bulletin 811?
The crop yields represent a mean annual yield for a 10-year period. Bulletin 811 provides crop yields and productivity indices under an optimum level of management used by the top 16% of farmers in Illinois in the 1990s.
What is the optimal crop productivity index for Illinois soils?
Productivity indexes (PIs) published in Bulletin 811, entitled Optimal Crop Productivity Ratings for Illinois Soils, often are used to quantify yield potential of Illinois soils. This publication gives PIs for different soil types.
What do the crop yields and productivity index ratings mean?
The crop, pasture, and forestry yields and productivity index ratings in Bulletin 810 are for the average level of management used by all farmers in Illinois in the 1990s. The crop yields represent a mean annual yield for a 10-year period.