- Monier M. Wahba1*, Alaa M. Zaghloul1,Amal, M. A1, Ebtisam I. El-Dardiry2 and Abdel Hady, M.2
- 1Soils and Water Use Dept. 2Water Relations and Field Irrigation Dept. National Research Centre, El-Buhouth St., Dokki, Cairo, Egypt
Compost tea is a natural raw material rich in organic matter, especially humic and fulvic acid. It also contains a high percentage of the nutrients needed to nourish the plant. Therefore, in this research, compost tea was used to reclaim sand soils that are poor in organic matter content and poor in chemical and physical properties. Add 60 ml/liter of compost tea to every 5 kg of sandy soil over the course of a year. The results showed the following:
Firstly, with regard to the chemical and physical changes, there was increased in the percentage of clay from 1.82 to 8.95 %, and also increased in the proportion of silt from 6.75 to 13.45%, respectively, and thus a change in the soil texture from sand to loamy sand. Also, there was a clear change in the cationic exchange capacity. It rose from 1.25Cmolkg-1 in the control to a mean of 5.34Cmolkg-1 and this has a direct impact on plant nutrition, holding and retaining nutrients and these pests are lacking in fertile soils. In addition, increasing in percentage of organic matter from 0.13 to 1.12%.
Secondly: The results obtained from the micro-morphological features study by electron microscope of the samples treated with compost tea confirmed that there are clear changed in the ground structure changed from grano-striated to poro-striated which Monic related distribution changed to locally Gefuric and Chitonic due to using compost tea. Large portions became covered with compost tea plates in the treated samples.
On the other side it is clear that numerous smooth vughs, vesicles and channels are observed as well as compound voids for packing void with sample treated compost tea. In addition, characteristic changes in the predominant voids from plain samples in sandy samples to complex packing as well as some coarse cavities and chambers in the soil treated with compost tea extract.
