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ANBAR JOURNAL OF AGRICULTURAL SCIENCES

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Response of Two Sorghum Bicolor (L.) Cultivars to Potassium fertilizer and Distance Between Rows

    B. H. Abdullah S. N. Ali H. A. Ajaj

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2012, Volume 10, Issue 1, Pages 273-296

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Abstract

A field experiment was carried out in clay loam soil during spring and autumn seasons , 2008 to study three levels of K fertilizer ( 0 , 70 and 140 Kg / ha ) and three distances between raws ( 50 , 60 and 70 cm ) on growth and yield of two sorghum cultivars (Ankath and Rabih). A split–split plots design was used according to R.C.B.D. with three replicates. Cultivars was assigned as main plots and plant distance as sup plots , while the sub–sub plots were K fertilizer levels.
Results showed a significant difference between the two cultivars in a day from sowing to 50% of flowering , leaf area , leaf area index, 500 grains weight, grains no. head-1 and harvest index . increased rows distance from 50 to 70 cm caused
earliness of flowering , increased leaf area at in monsoon, leaf K% , grain no. head-1 , 500 grain weight and harvest index (24.56 , 30. 28%) for each season. 50 cm was superior in leaf area index , biological yield and grain yield(7.19 , 10.52 t.ha-1) for each season respectively. Increase of potassium level lead to be earlier flowering and significant increase in all agronomic and yield traits . The potassium level of 140 kg.ha-1 gave the highest grain yield and harvest index of 6.88 and 10.32 t.ha-1 , and 24.47 and 31.11%, for each season respectively. It could be
concluded that grain yield could be increased by using the distance that applied in Iraqi agronomy of 20 X 70 cm, where as, the increase about it 25.92 and30.68% , for each season respectively. Land, production, water management and reduced weeds growth , also could be used , if this distance properly applied.
Keywords:
    Response potassium fertilizer Distance Rows
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(2012). Response of Two Sorghum Bicolor (L.) Cultivars to Potassium fertilizer and Distance Between Rows. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 10(1), 273-296.
B. H. Abdullah; S. N. Ali; H. A. Ajaj. "Response of Two Sorghum Bicolor (L.) Cultivars to Potassium fertilizer and Distance Between Rows". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 10, 1, 2012, 273-296.
(2012). 'Response of Two Sorghum Bicolor (L.) Cultivars to Potassium fertilizer and Distance Between Rows', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 10(1), pp. 273-296.
Response of Two Sorghum Bicolor (L.) Cultivars to Potassium fertilizer and Distance Between Rows. ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2012; 10(1): 273-296.
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