Impact of certified rice seed on farmers’ income in Simalungun District, North Sumatra von Savitri, Sheila, Setyaningrum, Widyadhari F., Parhusip, Dorkas, Girsang, Setia S., Dani, Fatimatuz Z.D.P., Dermoredjo, Saktyanu K., Sayaka, Bambang, de Brauw, Alan

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Mid-season adjustment of nitrogen fertilizer for rice with two plant spacings von Girsang, Setia S., Stuart, Alexander M., Parhusip, Dorkas, Manurung, Erpina D., Miswarti, Pabuayon, Irish Lorraine B., Buresh, Roland J.

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Keanekaragaman dan aktivitas serangga pengunjung pada bunga wortel von Rasiska Tarigan, Susilawati Barus, Rina C. Hutabarat, Perdinanta Sembiring, Dorkas Parhusip, Bagus Kukuh Udiarto, Dewi Sartika Aryani

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Are Indonesian rice farmers ready to adopt precision agricultural technologies? von Santoso, Agung B., Ulina, Evawaty S., Batubara, Siti F., Chairuman, Novia, Sudarmaji, Indrasari, Siti D., Pustika, Arlyna B., Sutrisna, Nana, Surdianto, Yanto, Rahmini, Aryati, Vivi, Manurung, Erpina D., Purba, Hendri F. P., Senoaji, Wasis, Kotta, Noldy R. E., Parhusip, Dorkas, Widihastuty, Mugiasih, Ani, Lumban Tobing, Jeannette M.

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Assessing the Challenges and Opportunities of Agricultural Information Systems to Enhance Farmers’ Capacity and Target Rice Production in Indonesia von Santoso, Agung Budi, Girsang, Setia Sari, Raharjo, Budi, Pustika, Arlyna Budi, Hutapea, Yanter, Kobarsih, Mahargono, Suprihatin, Agus, Manurung, Erpina Delina, Siagian, Deddy Romulo, Hanapi, Sidiq, Purba, Tommy, Parhusip, Dorkas, Budiarti, Sri Wahyuni, Wanita, Yeyen Prestyaning, Hatmi, Retno Utami, Girsang, Moral Abadi, Haloho, Lermansius, Waluyo, Suparwoto, Yustisia, Sudarmaji

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Reduction of rice yield gap by fertilizer and new varieties in North Sumatera von Parhusip, Dorkas, Manurung, Erpina D., Girsang, Setia S.

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Keanekaragaman dan aktivitas serangga pengunjung pada bunga wortel von Tarigan, Rasiska, Barus, Susilawati, Hutabarat, Rina C., Sembiring, Perdinanta, Parhusip, Dorkas, Udiarto, Bagus Kukuh, Aryani, Dewi Sartika

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