تقييم خصوبة التربة باستخدام نظم المعلومات الجغرافية لمشروع الشطانية في محافظة ذي قار

الملخص EN

The purpose of this study is to evaluate the soil fertility of study area in Dhi Qar Governorate / Iraq.

The study area located between longitude (46 ° 30 '00' and ' 46 ° 52 '30) and latitude (31 ° 15' 00 'and' 31 ° 30 '00), respectively.

The investigation showed that most of the studied land was affected by salinity and lowest salinity was (5 dS.m-1 ), while the highest value was (246 dS.m-1 ).

The highest soil pH was (8) and the lowest was (7) The highest value of positive ions was (55) Cmolc Kg-1 Soil, while the lowest was (2.4) Cmolc Kg-1 Soil, the highest negative ions was (50) Cmolc Kg-1 Soil and the lowest values was (10) Cmolc Kg⁻¹Soil.

A mathematical equation was used to devise a mathematical model for preparing a fertile soil map for the investigated area, five fertile varieties are distinguishedas highly fertile, fertile, medium fertile, low fertile and nonfertile .