This study estimated the effect of sowing and harvesting dates on dry matter (DM) yield and feed value of forage oats at Sancheong, Korea. The forage oats (Darkhorse vs. Highspeed) were used in this experiment. The experimental main plots consisted of the different sowing and harvesting dates at 2 seasons as follows: spring oats of sowing (February 25, March 3 and March 13) and harvesting (May 27, June 6 and June 16); and fall oats of sowing (August 15, August 25 and September 4) and harvesting (October 15, October 25 and November 4). On spring oats, Highspeed sown on March 3 and then harvesting on June 6 had the highest (p<0.05) plant length and DM yield. Crude protein content decreased (p<0.05) in seed of the delayed-harvesting Highspeed. On fall oats, plant length and DM yield with the delayed-harvesting date increased (p<0.05), while crude protein content of the delayed-harvesting Highspeed decreased (p<0.05). This study concluded that the spring oat sown in early March and then harvesting in early June was recommended to increase dry matter and feed value although the fall oat sown in end August and then harvesting in early November was recommended for fall period.

귀리는 단기 다수성 작물로서 잎의 비율이 높을 뿐만 아니라 가축의 기호성도 양호하며 다른 총체맥류에 비하여 파종시기의 선택폭이 넓다. 따라서 본 시험은 내한성이 강하여 중부 지방에서도 월동이 가능한 귀리 3품종과 옥수수 뒷그루 재배에 알맞은 3품종에 대하여 10월 중순 가을 파종과 3월 상순 봄 파종시 생육, 수량 및 사료가치를 비교하고자 실시하였다. 출수기는 봄 파종시 가을 파종에 비하여 평균 12일 늦었고, 품종간에는 약 8일의 차이가 있었다. 봄

본 시험은 가을에 파종한 호밀()에 대한 파종시기 및 가을 수확방법이 호밀의 생육특성, 사초수량 및 사료가치에 미치는 영향을 구명하기 위하여 1992년 9월 5일부터 1993년 4월 21일까지 서울대학교 농업생명과학대학 부속시럼목장의 사초시험포장에서 수행되였으며, 가을수확방법으로서 무예취, 가을예취 및 가을 방목을 주구로 하고 파종시기(조기파종;9월 5일, 중기파종;9월 25일, 만기파종;10월 15일)를 세구로 하는 분할구 시험법으로 3반복 설계배치하

연맥의 파종기와 수확기가 건물 수량 및 사료가치에 미치는 영향을 알기 위하여 1992년 9월 1일(첫째). 9월 11일(둘째), 9월 21일(셋째 파종기)에 파종하여 동년 11월 7일(첫째 수확기)과 19일(둘째 수확기)에 수확하였다. 1. 초고는 파종시기와 수확기에 따라 영향을 받았으며 첫째 파종기의 둘째 수확기의 것이 가장 길었다. 2. 사초의 건물 함량은 첫째로부터 셋째 파종기로 지연됨에 따라 감소되었으며 그 범위는 15.1%에서 13.5%였고 동

The experiment was conducted to evaluate the effect of the different seeding date on the dry matter yield and chemical composition of oat for forage. The crops wrc sccdcd on August 3l(lirst). Scptember IO(second). and September 20(third seeding date) and

Fresh edible sweet corns demand relatively short period to harvest fresh ears, which can allow farmers to make a choice sweet corns for various cropping systems. For this reason, we were to find the optimum planting date of late-planted sweet corns to sell fresh ears in the autumn linked to cropping system with winter crops, investigating yield and properties of marketable fresh ears and growth traits of sweet corns (cv. 'Godangok' and cv. 'Guseulok') depending on planting dates such as 10 July, 20 July, and 30 July in Suwon 2012 and 2013, respectively. The 20 July-planted sweet corns showed the most fresh ear yield. However, the 10 July-planted and the 30 July-planted had 32% less yield caused by consecutive rainfall from 10 July through 20 July, and 15% less yield due to low air temperature during ripening than the 20 July-planted, respectively. The 10 and 20 July-planted sweet corns had average 140g of a fresh ear weight and 15% heavier ear than the 30 July-planted. For the July-planted sweet corns, silking days after planting (r=-0.80**), and harvesting days after silking (r=-0.97**) and planting (r=-0.91**) were highly negatively correlated with daily mean air temperature during the period, resulting in it takes 1,100 growing degree days (GDD) to harvest fresh ears from the July-planted sweet corns. The fresh ears of the 20 July-planted sweet corns are able to be harvested by early October. Therefore it will be a good choice for the cropping system based on winter vegetable cash crops such as temperate garlic and onion with medium or late maturity. Among three planting dates 20 July-planted sweet corns had the best field performance in every year considering fresh ear yield, ear size, and stability to grow.