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      Pengaruh Penundaan Waktu Pemupukan terhadap Produksi dan Mutu Benih Padi (Oryza sativa L.) Varietas IPB 3S

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      Date
      2021-01
      Author
      Aliyah, Tisngatul
      Suhartanto, Rahmad
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      Abstract
      Distribusi pupuk subsidi dari pemerintah kepada petani sering mengalami keterlambatan sehingga menyebabkan petani tidak dapat melakukan pemupukan dengan tepat waktu. Penelitian ini bertujuan untuk mengetahui pengaruh penundaan waktu pemupukan terhadap produksi dan mutu benih padi (Oryza sativa L.) varietas IPB 3S. Rancangan yang digunakan dalam penelitian ini adalah rancangan kelompok lengkap teracak (RKLT) satu faktor, yaitu waktu pemupukan yang terdiri atas empat taraf dengan tiga kali ulangan. Taraf pertama atau kontrol adalah waktu pemupukan pada saat 7, 21, dan 35 HST. Taraf kedua terdiri atas waktu pemupukan pada 7, 28, dan 35 HST. Taraf ketiga terdiri atas waktu pemupukan pada 7, 21, dan 42 HST. Taraf keempat terdiri atas waktu pemupukan pada 7, 28, dan 42 HST. Hasil penelitian menunjukkan bahwa penundaan waktu pemupukan selama satu minggu tidak memberikan pengaruh terhadap produksi benih padi varietas IPB 3S, akan tetapi berpengaruh terhadap mutu fisik dan fisiologis benih. Penundaan pemupukan pada fase generatif mampu meningkatkan indeks vigor dan bobot kering kecambah normal, sedangkan penundaan pemupukan pada fase vegetatif dan generatif sekaligus dapat menurunkan bobot 1000 butir benih.
       
      The distribution of subsidized fertilizers from the government to farmers is often late. This causes farmers unable to apply fertilizers on time. This study aims to determine the effect of delaying fertilization time on the production and quality of IPB 3S rice seeds. The research used randomized complete block design (RCBD) with one factor. The factor was difference of fertilization time which consist of four levels and three replicates. The first level or the control is the time of fertilization at 7, 21, and 35 DAT. The second level consists of fertilization time at 7, 28, and 35 DAT. The third level consists of fertilization time at 7, 21, and 42 DAT. The fourth level consists of fertilization time at 7, 28, and 42 DAT. The result showed that the delay in fertilization time for one week had no effect on the production of IPB 3S rice seeds, but had an effect on the physical and physiological quality of the seeds. Delaying fertilization in the generative phase can increase the vigor index and dry matter of normal seeds, while delaying fertilization in the vegetative and generative phases simultaneously can reduce the weight of 1000 seeds.
       
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      http://repository.ipb.ac.id/handle/123456789/105424
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      • UT - Agronomy and Horticulture [7622]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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