Author : S. Riyanto
Publisher :
ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (79 download)
Book Synopsis Effect of Weed Control Methods and Nitrogen Fertilization on Yield and Yield Components of Sorghum After Paddy Rice by : S. Riyanto
Download or read book Effect of Weed Control Methods and Nitrogen Fertilization on Yield and Yield Components of Sorghum After Paddy Rice written by S. Riyanto and published by . This book was released on 1977 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of different weed control methods (handweeding twice, mulching and 2,4-D followed by handweeding) and nitrogen levels (0, 45, 90 and 135 kg N/ha) on grain yield and yield components of three sorghum varieties (Cosor 1, Cosor 2, Cosor 3) grown after paddy rice were studied at the Colllege Experiment Station during the dry season of 1976-77. Important plants characters as number of days to blooming, plant height, panicle length, number of grains per panicle, 100-grain weight, total dry matter yirld, panicle yield and grain yield analyzed. Among the three weed control methods, handweeding at 15 and 30 days after seedling emergence suppressed the were affectively, resulting in longer panicle length, more grains per panicle, and higher panicle and grainyields. Higher nitrogen levels up to 90 kg n?ha resulted in early maturity, more grains per panicle and higher grain yield. Plant height, panicle length, panicle yield and total dry matter increased with increasing nitrogen level up to 135 N/ha. However, the 100 grain weight decreased with increasing nitrogen levels. Grain yield was positively correlated with plant height, total dry matter, panicle yield, number of grains per panicle, panicle length, respectively, but not with 100-grain weight.