• 제목/요약/키워드: 작물 생육단계

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Development of ResNet based Crop Growth Stage Estimation Model (ResNet 기반 작물 생육단계 추정 모델 개발)

  • Park, Jun;Kim, June-Yeong;Park, Sung-Wook;Jung, Se-Hoon;Sim, Chun-Bo
    • Smart Media Journal
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    • v.11 no.2
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    • pp.53-62
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    • 2022

  • Due to the accelerated global warming phenomenon after industrialization, the frequency of changes in the existing environment and abnormal climate is increasing. Agriculture is an industry that is very sensitive to climate change, and global warming causes problems such as reducing crop yields and changing growing regions. In addition, environmental changes make the growth period of crops irregular, making it difficult for even experienced farmers to easily estimate the growth stage of crops, thereby causing various problems. Therefore, in this paper, we propose a CNN model for estimating the growth stage of crops. The proposed model was a model that modified the pooling layer of ResNet, and confirmed the accuracy of higher performance than the growth stage estimation of the ResNet and DenseNet models.

  • https://doi.org/10.30693/SMJ.2022.11.2.53 인용 PDF KSCI

Flooding Injury of Rice Plant according to Growing Stages and Yield Compensating Ability by Uppernode Tillering (벼 관수에 따른 생육단계별 피해 및 고위절 분얼 이삭에 의한 수량보상력)

  • 강양순;양의석;이성환
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.33 no.2
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    • pp.195-200
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    • 1988

  • This experiment was carried out to evaluate the flooding injury and yield compensating ability by uppernode tillers formed during the recovery periods. Rice plants grown in experimental field transplanted on 1st, June were completely flooded for 3 days by the artificial flooding device in each different growth stage such as middle tillering stage (20 days after transplanting), young panicle formation stage, meiotic stage and heading stage. And the farmer's rice fields which had various transplanting dates were completely flooded for 3 days by typhoon 'Thelma' from 16th to 18th, July, 1987. Percent of dead leaves and yield reduction of rice in experimental field flooded at the different growth stages were resulted that the earlier growth stages were the lower damage because of the low temperature in the earlier growth stage, but it showed opposite tendency in farmer's rice field flooded in high temperature season by typhoon 'Thelma'. Rice yield compensating ability attained to 66% of check plot yield was greatly depend on uppernode panicles induced after damage of original young panicles. Uppernode panicle produced 236 kg per 10a in polished rice by securing 690$^{\circ}C$ of accumulated mean temperature and 210 hours of sunshine during the ripening periods when headed up to 15th of September.

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