الفهرس 
Impact of Composite Organic Wastes on Hydraulic Properties of Sandy Soil and Tomato SeedlingOnly 14 pages are availabe for public view
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Abstract
Recycling agricultural organic wastes like, palm seeds, rice straw and coffee grounds by using them as soil amendment and as alternative substrate for transplanting production is very important.
In addition to use date Palm seeds ground to improve sandy soil characteristics. For that, a study
were carried out to achieve a certain objectives (1) to test different substrates used as a growth
media of tomato transplant (2) to evaluate the influences of organic wastes composite on water flow in sandy soil before and after its exposed to wet and drying cycles; (3) to study the
influence of organic wastes composite on soil water retention and (4) to examine the potential effect of incorporated different organic wastes composite during a certain period on reducing
evaporation of sandy soils.
First Expermints:
The transplanting growth media plays a very important role in factory seedling cultivation.
High quality growth media could provide healthy and high-quality seedlings for high yield of vegetable crops. This study has attempted to use some local agricultural organic wastes and
mineral substrates, with different ratios, as growth media mixtures to select the best growth media, which are suitable for the growth of tomato transplants (Solanum lycopersicum) and to substitute the import of peatmoss. At the beginning of the experiment Eighteen different (growth media) mixtures were prepared from mineral fraction (sand and vermiculite) and agricultural organic wastes Palme seeds, rice straw and coffee grounds) with different ratios.
Seven growth media mixtures were selected based on the best growth performance of tomato transplants. The experiment was arranged in a completely randomized design with 7 treatments and 3 replications with 5 observations per treatment. After the seedlings growth
period, seedlings were harvested to determine the effect of the growth media mixtures on the different growth parameters (plant dry matter and leaf area) and (percentage of seedlings,
fresh weight and chlorophyll content).
Second Experiments In this research work, tests and experimental work was performed on the sandy soil. The
sampling location at El-Bustan region, Elbehera governorate, Egypt. The experimental work was carried out mainly in Soil physics laboratory at the department of Soil and Water Sciences, Alexandria University and Soil physics laboratory at the Nubaria Research Station.
According to the chemical analysis of different organic wastes amendments, different mixtures of them were made. from these mixtures we selected the promising composite. The new collection of the conditioners was applied to the sandy soil at different ratios based on
weight basis plus the control treatment. The experiments were done in three replications for each treatment. The treatments included different combinations of one mineral component
sand (S) or vermiculite (V) and /or three organic components Rice straw (RS), Coffee grounds
(CG), and Date palm seeds ground (DPSG)) at different ratios on weight basis compared to
the sandy soil as a Control treatment (C). There are rates from each treatment 1% and 2%.
The physical condition of a soil is one of the fundamental factors affecting crop
growth, development, and yield. This is because the soil physical properties have very high
degree of correlation with crop production and have high influence on soil fertility and crop
performance. Of special importance, is the soil water retention, soil water flow, as well as
evaporation rate. It is a laboratory experiment. Four different mixtures were prepared