الفهرس 
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Abstract
This study was carried out on sandy soil of El- Maraka village, El-
Tahreer region, Behara Governorate, Egypt to define the pest application time
of organic (molase and vinase) and mineral (P + Micronutrients) to two
cultivars (Karnack and Nebraska) of common bean plants (phaselus volgaris L)
and their effect on plant growth, productivity and seeds quality. This study was
carried out during the period of March- June, 2016. This experiment include
300 with 6 m2 (3 X2 m) for each plat. The studied treatments were arranged
with in the experimented units in split completely block design in three
replicates. The studied treatments were 2 (cultivares) X 2 (organic fertilizers) X
5 (application time of organic fertilizer) X 1 mineral fertilizer X 4 (application
time of mineral fertilizer X 3 replicates = 240 treatments, which may be
illustrated as follows: - The two cultivars ware Karnack and Nebraska. -
The two organic fertilizers were molasses and vinasse at one application
rate of 250 kg fed. -The used mineral fertilizers were 5 liter concentrated
phosphoric acid (95.22% P2O5) + 1kg of micronutrients mixture fed-1 of
EDTA form (12.12.13 and 13% of Fe, Mn, Zn and Cu, respectively) + 10g fed-
1 Mo as ammonium molybedate (Mo, 50%) + 0.5kg B fed-1 as boric acid
(13.17%). - Application times of both organic and mineral fertilizers were at 0,
28, 38, 45 and 60 days of planting. Plant samples of each experimental unit
were taken randomly at 45 and 70 days of planting as well as at harvesting
stage. Only soil samples were taken from root zone at growth period of 45 days
to determine dehydrogenase activity. Fresh and dry matter yields as well as the
content of N, P, K, Mn, Zn and Cu were determined for the plant samples at 45
and 70 days. Also, nodules number at growth period of 45 day. Seeds contents
of N, P, K, Mn, Zn, Cu and protein were determined.
The data of this study show the importance of both organic and mineral
fertilizer to increase sandy soil productivity of common bean plants and
improved its quality. Nebraska cultivar was more suitable and high
productivity under sandy soil conditions compared with Karnack cultivated.
The latter applications of both organic and mineral fertilization were more high
efficiency than of earlier application.