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ANBAR JOURNAL OF AGRICULTURAL SCIENCES

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Effect of plant densities and time of potassium fertilizer on growth and yield of two Soybean cultivars (Glycine max (L.) Merrill)

    ISMAEL- A

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010, Volume 8, Issue 4, Pages 373-393

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Abstract

A field trad was conducted during Summer season of 2008 .In Al – Naamea Region- Falluja City to know the effect of three plant densities(140000 , 100000 and 72000) plant / ha , three splitting of potassium fertilizer: ( addition at the planting, at the planting and flowering stage and vcat the planting , flowering and pods stage )on the growth and yield of two soybean cultivars ( J.35 and J. 111) . A split – split plot arrangement in randomaized complete block design ( R.C.B.D.) with three replicates. The Result showed : -
-The two soybean cultivars showed a significant different in 100 seed weight , the cultivar J.35 gave a highest rate hn this trait (15 g.) and also gave a highest oil percentage in seeds (21.6 %). While the cultivar J.111 gave a highest rate in number of seeds / pod (2.3seed) . But there was no significant effect on other traits .
-Plant density showed a significant effects on all traits except 100 seeds weight .The high plant density(140 000 plant/ ha) gave a highest: seed yield ( 2.97 t / h ), number of pods / plant (169.0 pod) , number of seeds / pod (2.4 seed) , plant height (94.4 cm), and seeds oil percentage ( 21.7 %).while the low plant density (72 000 plant /ha ) gave the lower rate of seed yield ( 2.49 t/h)and a highest rate of protein percentage in the seeds (32.9 %) .
-Potassium fertilizer addition showed a significant effect in branches / plant, leaf area, number of pods / plant, 100 seed weight, total of seeds yield and protein percentage in seeds, while there was no significant effect on other traits .The first splitting potassium fertilizer addition gave the heighest seeds yield(3.00 t/h) and heighest pods/ plant ( 166.3 pod ).
The interaction between cultivars and plant density was significant in atheir effect on : plant height, leaf area, and 100 seeds weight only.
-The interaction between cultivars and potassium fertilizer addition was significant effect in the number of branches / plant, protein percentage in seeds only.
-The interaction between plant density and potassium fertilizer addition had significant effect on leaf area, , number of pods / plant, 100 seed weight and oil and protein Percentage in seeds only .
-The triple interaction among cultivars , plant density and potassium fertilizer addition had significant effect on leaf area, 100 seed weight and protein percentage in the seeds only.
Keywords:
    potassium fertilizer Growth Soybean
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(2010). Effect of plant densities and time of potassium fertilizer on growth and yield of two Soybean cultivars (Glycine max (L.) Merrill). ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 8(4), 373-393.
JASIM-M; SARHAN; ISMAEL- A. "Effect of plant densities and time of potassium fertilizer on growth and yield of two Soybean cultivars (Glycine max (L.) Merrill)". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 8, 4, 2010, 373-393.
(2010). 'Effect of plant densities and time of potassium fertilizer on growth and yield of two Soybean cultivars (Glycine max (L.) Merrill)', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 8(4), pp. 373-393.
Effect of plant densities and time of potassium fertilizer on growth and yield of two Soybean cultivars (Glycine max (L.) Merrill). ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2010; 8(4): 373-393.
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