DefinePK

Abstract

ABSTRACT Field and laboratory investigations were made to study the distribution of some soil properties under agro-forestry (Eucalyptus + wheat) and agricultural crops (wheat). Eighteen soil samples were collected at a regular grid spacing of 15 m x 25 m and 15 m x 20 m from two depths (0-15, 15-45 cm) under agro-forestry and agricultural crops, respectively from D. I. Khan. Soil samples collected were analyzed for soil pH (1:5), electrical conductivity (1:5), organic matter, lime, mineral N, and AB-DTPA extractable P and K. The total number of plants were 410 in agro-forestry field and were about 5 years old Data collected on soil properties were statistically analyzed. In the field of agro-forestry, the percent co-efficient of variation (% CV) for EC (1:5) and P were 57.4 and 35.2 for surface soil and 49.8 and 72.7% for sub soil, respectively. Based on critical level for soil P. all the soil samples in both the depths were deficient, except one sample which was medium in subsoil. About 83% in the surface soil and 94% in the subsoil of the samples were found low (