What is a good soil productivity index?

What is a good soil productivity index?

PIs range from 47 to 147, and higher PIs are generally associated with higher corn and soybean yields under optimal management. The more productive a farm’s individual soils, the higher it’s weighted average PI. (Soil types with PI’s of 99 or below are not considered prime agricultural land.)

What is land productivity index?

The land productive capacity can be evaluated directly or indirectly. After analysing and evaluating topographic, soil physical and chemical properties, result map was generated for land productivity index (LPI) by means of GIS.

What is pi on farmland?

ity. Index, referred to as its 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 Nccpi rating mean?

“The National Commodity Crop Productivity Index (NCCPI) is a model that uses inherent soil properties, landscape features, and climatic characteristics to assign ratings for dry-land commodity crops such as wheat, cotton, sorghum, corn, soybeans, and barley.

How do you measure soil productivity?

Soil productivity encompasses soil fertility plus the inherent and management-related factors affecting plant growth and development. It is generally measured in terms of inputs versus outputs, which for agronomic situations generally refers to water and/or nutrient input versus crop yield.

What is the crop productivity index?

The National Commodity Crop Productivity Index is a national soil productivity model that is intended to be applied across state lines. The different factors that determine the NCCPI rating consist of the soil, landscape, and climate. This rating system is currently only applied to non-irrigated/ dryland agriculture.

How do you calculate land productivity?

The productivity formula multiplies the gross revenue per acre by the landownerʼs share, and then divides this amount by the capitalization rate.

What is a soil rating?

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. Any soil types with a rating between 47-99 are placed in the Other Agricultural Land Class and are not considered prime agricultural land.

What is productivity of soil?

Soil productivity is defined as the capacity of soil, in its normal environment, to support plant growth. Soil productivity is reflected in the growth of forest vegetation or the volume of organic matter produced on a site. A certain amount of soil impact is inevitable when conducting some forest management activities.

How do you maintain soil productivity?

Management Practices to Improve Soil Health

  1. Reduce Inversion Tillage and Soil Traffic. Excessive tillage is harmful to soil health in a number of ways.
  2. Increase Organic Matter Inputs.
  3. Use Cover Crops.
  4. Reduce Pesticide Use and Provide Habitat for Beneficial Organisms.
  5. Rotate Crops.
  6. Manage Nutrients.

How do you calculate crop productivity?

Crop productivity can then be calculated by dividing total production by the area from where the production came from. Ideally, sampling of harvest units is done just before storage and includes a measurement of the moisture content of the harvested product (Casley and Kumar, 1988).