ORGANIC AMENDMENTS AND THEIR EFFECT ON STATUS OF SOME NUTRIENTS IN SOIL AND PLANT | ||
| Menoufia Journal of Soil Science | ||
| Article 6, Volume 3, Issue 1, January and February 2018, Pages 83-84 PDF (292.7 K) | ||
| Document Type: original papers | ||
| DOI: 10.21608/mjss.2018.175395 | ||
| Authors | ||
| R. A. Khalil; M. A. Ahmed; S. A. Radwan; E. A. Abou Hussien | ||
| Prof. of soil chemistry,, Fac. of Agric., Menoufia Univ. | ||
| Abstract | ||
| The aim of this investigation was to study the application impact of biochar “RSB” and compost “RSC” derived from rice straw on sandy soil and its leachates properties. These properties were pH, EC and soluble nutrients (N, P, K, Zn and Cu). Also, the effect of RSB and RSC applications on the growth of sunflower plants and its content of N, P, K, Zn and Cu were studied in the pot experiment.In addition to the properties of the sandy samples and its content of available N, P, K, Zn and Cu were studied. To achieve this study, two experiments were conducted namely, leaching and pots at the laboratory and green house of Soil Sci. Dept., Fac. of Agric., Menoufia Univ., Shebin Elkom, Egypt. The results indicated that, the applications of Biochar resulted in an increase of leachate pH, EC and soluble K and a decrease of soluble NH4+ , NO3-, P, Zn and Cu. This decrease was non-significant with NO3-. Increasing rates of individual applications of compost associated with an increase of EC, soluble HN4+, NO3-, P, K and Zn and a decrease of pH and soluble Cu in leachate. After leaching, application rates of biochar were associated with an increse in soil pH, EC, CEC and available NH4+, P and k and a decrease in available Zn and Cu. While, the application rates of compost resulted in an increse in EC, CEC and available NH4+, NO3-, P , k, Zn and Cu and a decrease in soil pH. Uptake of N, P and k (mg/plant) by sunflower plants was increased with biochar rates increasing up to 0.05% biocharcompared with the control and decreased with increasing of biochar rates. Zn and Cu uptake was decreased with increasing biochar rates. The effect of compost application at 0.75% increased uptake of N, P, k, Zn and Cu compared with the control. | ||
| Keywords | ||
| RSB; RSC; Sandy Soil; Soil Properties; Sunflower; Leachate; Uptake | ||
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