الفهرس 
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Abstract
INTRODUCTION: Two field experiments were carried out in the experimental farm at the Agricultural Research Station at Gemmiza, El- Ghrbiah Governorate, Egypt during the two successive seasons of (2015/ 2016) and (2016/ 2017) to investigate the influence of organic fertilization compost plant (CP) and farmyard manure (FYM) with different applications of some stimulants on improving the vegetative growth, chemical constituents, essential oil determinations, fruit yield and quality of the coriander plant (Coriandrum sativum L.). Traetments: Main plots were organic fertilizers treatments which included two forms. 1- Farmyard manure (FYM) was applied at the rate of 30 m3/ fad two weeks before sowing. 2- Compost plant (CP) was applied at the rate of 1.5 ton/ fad two weeks before sowing. While, subplots were seven stimulant applications as follows; 1- N P K (added as recommended dose). 2- Biofertilizer. 3- Humic acid. 4- Seaweeds extract. 5- (Biofertilizer + Humic acid). 6- (Biofertilizer+ Seaweeds). 7- (humic acid+ Seaweeds). RESULTS: The results obtained could be summarized as follows 1. Vegetative Growth characteristics. 1-1- Effect of Organic fertilization. Coriander plants treated with compost plant (CP) had the highest values of plant height (cm), number of branches, umbels plant -1, fresh and dry weights in the two growing seasons compared to the plants treated with farmyard manure (FYM). 1-2- Effect of NPK, Bio- fertilizer and foliar applications. The foliar applications treatments i.e., bio-fertilizer, humic acid, seaweeds extract, (bio-fertilizer + humic acid), (bio-fertilizer +seaweeds) and (humic acid +seaweeds), all of them gained less vigor plant growth as compared to the application of the recommended doses of N, P and K fertilizers. On the other hand, within the foliar non-mineral applications; the best values of all growth parameters of coriander plants were obtained by coriander plants receiving (humic acid +seaweeds) followed in descending order by that supplied with (bio-fertilizer +seaweeds), (bio-fertilizer + humic acid), bio-fertilizer alone, seaweeds extract alone, and lately humic acid alone. 1-3- Effect of Interactions. The highest values of all aforementioned traits were recorded for the coriander plants treated with the combination of compost plant (CP) and recommended doses of N, P and K fertilizers (control), while the lowest values were recorded for the coriander plants treated with the combination of farmyard manure (FYM) and humic acid alone. In consideration of foliar application under both compost and (FYM), the highest values were recorded with compost and humic acid plus sea weeds. 2. Fruits Measurements. 2-1- Effect of Organic fertilization. The values of weight of 1000 seeds (g) and fruit yield (g plant-1 and Kg fad-1) of coriander plant treated with compost plant (CP) were significantly increased compared with the coriander plant treated with farmyard manure (FYM). 2-2- Effect of NPK, Bio- fertilizer and foliar applications. Using of (humic acid +seaweeds) was significantly superior for recording the highest values of 1000 seeds (g) and fruit yield (g plant-1 and Kg fad-1) of coriander plant during the two seasons, following in descending order with (bio-fertilizer + seaweeds), (bio-fertilizer + humic acid), bio-fertilizer alone, seaweeds extract alone, and lastly humic acid alone. 2-3- Effect of Interactions. The most suitable treatment which recorded the highest values of weight of 1000 seeds (g) and fruit yield (g plant-1 and Kg fad-1) was connected with the plants treated with (CP) + (100 % NPK (FRD)). In consideration of foliar application under both compost and (FYM), the highest values were recorded with compost and humic acid plus sea weeds. 3. Essential Oil Determination. 3-1 Essential oil productivity. 3-1-1- Effect of Organic fertilization. The essential oil productivity significantly influenced by the two organic fertilizers, but the compost had the upper hand. In this respect the coriander plants treated with compost plant (CP) had the highest significant essential oil percentage and oil yield, while farmyard manure (FYM) gave the lowest essential oil percentage and oil yield. 3-1-2- Effect of NPK, Bio- fertilizer and foliar applications. The best values of oil percentage, essential oil yield (ml plant-1 and L Fad-1) were obtained by coriander plants receiving (humic acid +seaweeds) followed in descending order by that supplied with (bio-fertilizer +seaweeds), (bio-fertilizer + humic acid), bio-fertilizer alone, seaweeds extract alone, and lately humic acid alone 3-1-3- Effect of Interactions. The highest values; 0.474, 0.090 and 2.061 for oil percentage, essential oil yield ml plant-1 and L Fad-1, respectively were recorded for the coriander plants treated with the combination of compost plant(CP) and recommended doses of N, P and K fertilizers (control). Regarding the effect of foliar application also compost and humic acid plus seaweed recorded the highest values. 2- Essential oil constituents Percentage %. According to G.L.C, illustrated showed that ten compounds were identified in all treatment, α- pinne, sabinene, myrcene, β-pinene, p-cymene, linalool, geraniol, borneol, linalyl acetate and geranyl acetate. The main component was linalool and its highest value was recorded with the plants treated with compost plus 100 % NPK from recommended dose compared to other foliar applications, it was 68.49 %. While the lowest value of the main component (linalool) produced from the plants fertilized by (FYM) and treated with humic (47.01%). In consideration of foliar application also the combination of compost and humic acid plus seaweed gave the highest value of the linalool. 4. Chemical Constituents in Leaves and Fruits. 4-1- Effect of Organic fertilization. It is evident that soil application of compost plant (CP) before planting significantly increased the values of N, P and K % in coriander leaves and fruits compared with the plants treated with farmyard manure (FYM). 4-2- Effect of NPK, Bio-fertilizer and foliar applications. Sequence of foliar application treatments from top to less was the (humic acid +seaweeds) > (bio-fertilizer +seaweeds) > (bio-fertilizer + humic acid) > bio-fertilizer alone > seaweeds extract alone > humic acid alone, such effect was the same during the two seasons of 2015/16 and 2016/17. 4-3- Effect of Interactions. Application of compost plant (CP) before planting of coriander combined with the various foliar applications investigated gave the highest values for N, P and K in coriander leaves and fruits than those obtained for the combination of (FYM) with the various foliar applications investigated.