Behaviour of sorghum hybrid (Sorghum bicolor (L.) Moench X Sorghum sudanense (Piper) Stapf) in presence of high plant density

Marano, B.; Mattei, F.

Agrochimica 21(5): 370-378

1977


ISSN/ISBN: 0002-1857
Accession: 000603970

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Abstract
In a field trial, sorghum X Sudan grass cv. Sudax SX-11 was grown at 0.25-62.7 plants/m2 and harvested 60 or 103 days after emergence. At the first harvest significant relationships among various physiological components and chemical composition measurements included a positive correlation between P and CP contents and a negative correlation between LAI and water-use efficiency. At the 2nd harvest P uptake showed a highly significant positive correlation with contents of CP, Scandinavian fodder units and gross energy. A density of 19-22 plants/m2 gave the highest yield and nutritive value.