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18.97.14.86
18.97.14.86
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SCIE SCOPUS
최대 청예사료 생산을 위한 수단그라스계 잡종 및 호밀 2모작 작부체계에서의 적정파종량 및 질소시비수준
Optimum Seeding Rate and Nitrogen Fertilization Level for Maximum Green Forage Yield of Sorghum × Sudangrass hybrid and Winter Rye in Double - Cropping Systems
한인규 ( I K Han ) , 김동암 ( D A Kim ) , 조무환 ( M H Jo ) , 한건준 ( K J Han )
UCI I410-ECN-0102-2008-520-002128819
* This article is free of use.

This experiment was conducted to find out the most suitable seeding rate and N fertilization level for maximum green forage yield in a double-cropping system of sorghum×sudangrass hybrid(Sorghum bicolor L.) and winter rye(Secale cereale L.) from April, 1992 to May 1993. As the principal crop, sorghum×sudangrass hybrid was planted at 3 levels(100, 200, 300 ㎏/㏊) of N fertilization with 2 rates (80. 110 ㎏/㏊) of seeding. After third harvest of the principal crop, winter rye, as the second crop, was planted in a similar way(100, 160, 220 ㎏/㏊ of N fertilization and 150, 200㎏/㏊ of seeding rate). The contents of CP, ADF and NDF, and IVDMD of the principal and second crops showed little change with the different seeding rates and N fertilization rates. DM yield of sorghum×sudangrass hybrid was increased with the higher seeding rate(P$lt;0.05) and that of winter rye was increased with higher N fertilization. DM yield of sorghum×sudangrass hybrid was 14,845㎏/㏊ at 100㎏/㏊ of N fertilization with a 110㎏/㏊ seeding rate and that of winter rye was 9,881㎏/㏊ at 220㎏/㏊ of N fertilization with a 200㎏/㏊ seeding rate. Therefore, to achieve maximum double-cropping yields, sorghum×sudangrass hybrid should he planted with 110㎏/㏊ of N at 110㎏/㏊ seeding rate and winter rye should be grown with ?20㎏/㏊ of N at a 200㎏/㏊ seeding rate.

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