Abstract . .
The current study came to know the heavy elements in the agricultural lands in Al Husseiniya district in Kerbala province. The study relied on the laboratory checking for the soil sample taken as 31 samples. Also, 10 samples of water were checked, beside samples of plants and cultured crops close to every earth sample in the area of study during the winter and summer seasons. The results of the laboratory analysis for irrigation water of cadmium element in winter season showed the highest samples 2 and 3 distributed into (0.021 ppm) and(0.016 ppm). The results were little bit higher than the Iraqi and universal permitted limitations accordingly quality of this water will be bad to irrigate agricultural corps.
It was clarified that through tables 31- A and 31- B, that there will not be a high proportion of cadmium in the soil samples. So, only two samples registered high average ( 27.1) by 0,08 % – 0.07 % ppm) while other samples were negative, where cadmium element proportion exceeded the permitted limits of heavy elements in the agricultural land soil as it is also clarified in table 18. Cadmium levels were in general very low in winter season. Hence, the study relied on the natural factor where there is a relation between solar ray and high temperature ( 0.571), as there is a relation between the highest temperature and humidity proportion ( -721**).
Concerning the interjection point or called the linking point between climate elements and heavy elements, there are no difference of statistical references between the samples taken from beginning, middle, and the end of the river, where F value were higher that the scheduled value about 9.55 at reference level ( 0.05) and freedom degree ( 2-3). This indicates that water in Al Husseiniya river has proportion of pollution by heavy elements that increase a long its procession from the river beginning to its end in accord with gradual height that represent another indication. We also conclude that there are no differences in the level of heavy elements in water between winter and summer save lead element (ph) which shows clear height in winter and summer and has statistical indication difference. The counted values of correlated factor were compared with the scheduled values which were bigger than correlated values when the scheduled values was ( 0.05) and freedom degree ( 60) that means the correlated divider is a statistical indicator if the counted value is higher that the scheduled (60). The study also relied on the human elements due to their impact on soil state and irrigation water through emerging of heavy elements traces because of the earth misuse and the agricultural processes as agricultural circulation. Irrigation ways, protection methods, and others. So, there is an impact of heavy elements on the plants and animals life and its reflections on human when it is higher than the permitted universally and locally. The study adopted the analytical method and the mathematical statistical method that stands on analyzing the phenomenon and studying the influential elements in it by depending on analyzing data and geographical maps related to polluted heavy elements in soil and water.
The proportion of the grown land of the area of study reached (3567,75/ acre ) in 2019 while the total grown land reached (7843, 75/ acre ), whereas the least grown land of the same season in 2021 was ( 2159,25/ acre); while the total grown land of the same year was ( 3575,75 /acre ). The highest grown land of fodder corps through winter season was in 2021 ( 5735) and the least grown land of green fodder and dodder mixture in 2018 was 909, whereas the total grown land of the same year (3760,75/ acre ). Therefore, we concluded that there is a difference in the production quantity and the grown land during years in the area of study.This is in turn is negative on soil for any decrease or shortage in the use of the agricultural land without planting cause an increase in the heavy elements in the soil as well the natural and human elements that were already mentioned
