EFFECT OF PLANT DENSITY OF FABA BEAN INTERCROPPED ON WHEAT AND NITROGEN FERTILIZATION ON YIELD AND ITS COMPONENTS FOR BOTH CROPS

Document Type : Research articles.

Authors

Crop Intensification Research Department Field Crop Research Institute Agricultural Research Center, Giza, Egypt

Abstract

Two experiment were carried out during the two growing seasons
of 2010/2011 and 2011/2012 at Giza Agric. Res. St. to study the
effect of plant density of faba bean intercropped on wheat and
nitrogen fertilization on yield and its components for both crops. A
split plots design with three replications was used. The main plots
were devoted to nitrogen fertilizer levels (60, 75 and 90 kg N/fad.
Whereas, the sub plots were allocated for pattern systems P1,P2,P3
(100 wheat 12.5%, 25% and 37.5% faba bean respectively. The
results indicated that increased population of faba bean from 12.5 %
to 37.5 of solid led to reduction for all study characters number of
spikes/m2, grain/ spike, weight of grains spike and 1000 grain, grain
and straw yield/ fad of wheat in the combined data. The reduction in
grain and straw yield of wheat were estimated 5.84 and 6.47 for P1,
10.09 and 8.82% for P213.33 and 13.53% for P3 respectively.
Intercropping 100% of wheat with faba bean (P1) recorded the highest
values of most yield components of faba bean, while the lowest
values were observed by third density (P3). Seed and straw yield were
increased by increased plant density of faba bean (P1 toP3) but
reduced as compared with solid yield.
This in seed and straw yieldfaba bean were 75.57 and 76.24 for
(P1) 61.48 and 66.70 for (P2) 47.60 and 55.55 for (P3)
respectively.Grain and seed yield of wheat with faba bean were
significantly affect by nitrogen fertilizer levels. The highest values of
both crops (95.24 and 48.75) were observed when added 90 kg N/fad.
While the lowest values (85.63 and 29.33) with 60 kg N/fad of solid
crops. The highest of LER (1.53) MAI (4574.73) and MER (1.42)
were observed (N3×P3) while the lowest was observed (N1×P1).
The values ofaggressivity (Ag) for faba bean was positive while
wheat was negative it means that faba bean was dominated while
wheat was dominated.

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