• The corn (Zea mays L) planting data in a double-cropping system is delayed until mid-May due to delayed rye harvest on May. This experiment was conducted to determine the optimum harvesting time for high yield and the best quality of silage corn at late planting date after harvesting winter rye. Corns were planted on 21 May and harvested at eight different maturity stage at Seoul National University Experimental Livestock Farm, Suwon in 1997. Maturities were B (blister; 16 days after silking), M (milk; 20 days), LM (late milk; 24 days), SD (soft dough; 28 days), ED (early dent; 33 days), FD (full dent; 38 days), LD (late dent; 44 days) and PM (physiological maturity; 53 days) stages. The percentage of whole plant dry matter (DM) showed optimum range for silage making (29.0 to 38.5%) when corn plant was harvested at between ED and LD stages. Maximum whole plant DM (14,831 ㎏/ha) and total digestible nutrients (TDN) yields (10,675 ㎏/ha) reached at full dent stage. The percentage of whole plant acid detergent fiber (ADF) was decreased from 35.4 to 22.1%, and that of neutral detergent fiber (NDF) was also decreased from 63.8 to 46.0% as harvest stage progressed. These changes in chemical compositions were associated with changes in plant part composition. A progressive increase in total ear, and the decrease in stover portion in the plant were observed with advance in harvest stage. Calculated on net energy for lactation (NEL) and TDN values based on ADF percentage of stover plant decreased by ED stage and then increased by PM stage. But NEL and TDN values of ear and whole plant increased as harvest stage progressed. While in vitro dry matter digestibility of stover was decreased from 61.1 to 49.7%, whole plant was increased from 58.3 to 65.7% as maturity advanced (P<0.05). The results of this study indicate that corn can be harvested for silage at full(1/2 milkline) and late dent (2/3 milkline) stages for maximum yield and optimum quality at late planting. And days after silking at late planting was 38 and 44 days. (rdf:langString) (en)
  • 고한종, 서울대학교 농생명공학부, yasc (rdf:langString) (
  • 권찬호, 연암축산원예대학 (xsd:string)
  • 김수곤, 서울대학교 농생명공학부 (xsd:string)
  • 김종관, 현대사료㈜ (xsd:string)
  • 김종덕, 연암축산원예대학 (xsd:string)
  • 박형수, 서울대학교 농생명공학부 (xsd:string)
  • 527.05 (xsd:string)
  • 고한종 (xsd:string)
  • 권찬호 (xsd:string)
  • 김수곤 (xsd:string)
  • 김종관 (xsd:string)
  • 김종덕 (xsd:string)
  • 박형수 (xsd:string)
  • 2021-01-30T23:37:12 (xsd:dateTime)
  • Effect of harvest stage on forage yield and quality of silage corn at late planting (xsd:string)
  • 26 cm (xsd:string)
  • p. 251-260 (xsd:string)
  • 2002 (xsd:string)
  • 한626 (xsd:string)
  • 만기파종에서 수확시 숙기가 사일리지용 옥수수의 사초수량과 품질에 미치는 영향 / 김종덕, 권찬호,김수곤박형수,고한종,김종관 (xsd:string)
  • Day after silking (xsd:string)
  • Forage yield (xsd:string)
  • GDD (xsd:string)
  • Harvest stage (xsd:string)
  • Late planting (xsd:string)
  • Maturity stage (xsd:string)
  • Milkline (xsd:string)
  • Silage corn (xsd:string)
  • 만기파종 (xsd:string)
  • 사일리지용 옥수수 (xsd:string)
  • 사초수량 (xsd:string)
  • 수확시 숙기 (xsd:string)
  • 만기파종에서 수확시 숙기가 사일리지용 옥수수의 사초수량과 품질에 미치는 영향 (xsd:string)
  • 44(2) (xsd:string)