Water Footprint and Crop Water Usage of Oil Palm (Eleasis guineensis) in Central Kalimantan: Environmental Sustainability Indicators for Different Crop Age and Soil Conditions von Safitri, Lisma, Hermantoro, Hermantoro, Purboseno, Sentot, Kautsar, Valensi, Saptomo, Satyanto, Kurniawan, Agung

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Weeding Frequencies Decreased Rice-Weed Competition and Increased Rice N Uptake in Organic Paddy Field von Maimunah, Margi Asih, Kautsar, Valensi, Bimantara, Putu Oki, Kimani, Samuel Munyaka, Torita, Ren, Tawaraya, Keitaro, Murayama, Hideki, Utami, Sri Nuryani Hidayah, Purwanto, Benito Heru, Cheng, Weiguo

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Weeding Frequencies Improve Soil Available Nitrogen in Organic Paddy Field von Maimunah, Margi Asih, Kautsar, Valensi, Bimantara, Putu Oki, Kimani, Samuel Munyaka, Utami, Asih Indah, Sabri, Riza Kurnia, Tawaraya, Keitaro, Utami, Sri Nuryani Hidayah, Purwanto, Benito Heru, Cheng, Weiguo

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P8-2-11 Organic rice farming increasing soil carbon stocks and nitrogen mineralization potentials in Japanese Andosols von Kautsar, Valensi, Cheng, Weiguo, Tawaraya, Keitaro, Toriyama, Kazunobu, Kobayashi, Kazuhiko

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Estimating SPAD, Nitrogen Concentration, and Chlorophyll Content in Rice Leaves using Calibrated Smartphone Digital Image von Kautsar, Valensi, Faizah, Kuni, Uktoro, Arief Ika, Khasanah, Lutfiatun, Filiphus, Filiphus

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Study of oil palm root architecture with variation of crop stage and soil type vulnerable to drought von Safitri, Lisma, Suryanti, Sri, Kautsar, Valensi, Kurniawan, Agung, Santiabudi, Fajar

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The response of oil palm seedlings' growth to vermicompost and water stress under the main nursery stage von Kautsar, Valensi, Ismawanto, Diky, Dyah Ully Parwati, Wiwin

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8-2-19 Effect of weeding frequencies on soil nitrogen and crop yield in organic rice farming（8-2 地球環境 2020年度岡山大会） von 鳥田, 廉, 俵谷, 圭太郎, 村山, 秀樹, 程, 為国

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P8-2-6 Different soil/water ratios affected the amounts of hot water and water extracted organic matter in rice paddy（ポスター，8-2 地球環境，2018年度神奈川大会）... von 俵谷, 圭太郎, 渡部, 徹, 程, 為国

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P8-2-7 Carbon decomposition and nitrogen mineralization of winter fallow grasses in paddy soil under long-term organic farming（ポスター，8-2 地球環境，2018年度神奈川大会）... von 程, 為国, 俵谷, 圭太郎, 鳥山, 和伸, 小林, 和彦

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Influence of Azolla incorporation and/or dual cropping on CH4 and N2O emission from a paddy field von Kimani, Samuel Munyaka, Bimantara, Putu Oki, Kautsar, Valensi, Torita, Ren, Hattori, Satoshi, Tawaraya, Keitaro, Sudo, Shigeto, Cheng, Weiguo

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