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All Journal Akta Agrosia
Suyono, A.T
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Agriculture, Biological Sciences & Forestry

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Pertumbuhan Gulma Padi Sawah pada Berbagai Takaran Alelokimia Kulit Buah Jengkol [Pithecellobium Jiringa (Jack) Prain Ex King] Nurjanah, Uswatun; Yudono, P.; Suyono, A.T; Shieddiq, Dja’far
Akta Agrosia Vol 18 No 2 (2015)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Jiringa hulls contained phenolic compound, alcaloide, steroide, and flavonoide. Phenolic compound could inhibit the growth of emergence of rice. This study was aimed evaluate effect of dosage jiringa hulls application in supressing weed growth and promoting rice growth and yield. The treatment were weed free, weedy, hand weeding at 21 and 42 dap, jeringa hulls application of 5, 10, and 15 ton ha-1. Result showed that jeringa hulls aplication of 10 and 15 ton ha-1 can subtituted hand weeding at 21 and 42 dap and can suppresed broad leafed and narrow leafed weed at 6 and 9 wap compared to weedy, respectively. Highest suppressed as 90% if jiringa hulls was aplication at 15 ton ha-1.
Pengaruh Bentuk Formulasi dan Waktu Aplikasi Kulit Buah Jengkol pada Pertumbuhan Padi Sawah Asal Bibit Nurjanah, Uswatun; Yudono, Prapto; Suyono, A.T; Shieddiq, Dja’far
Akta Agrosia Vol 17 No 2 (2014)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Jengkol pod exocarp can be used as anorganic fertilizer for rice cultivation. A research aimed to determine an appropriate formulation and application time of jengkol pod exocarp on paddy rice seedling growth. Thisstudy consisted of 2 factors. The first factor was formulation, namely liquid, powder or granules. The second factor was time of application, namely at planting, 1 or 2 weeks after planting. These treatments were arrangedin a Completely Randomized Design with 3 replications. The results showed that the application of jengkol pod exocarp in the form of granule improved root growth, N, P, K uptake, photosynthesis rate, but not dry weight. Thetime application of jengkol pod exocarp two weeks after planting increased N and P uptake, transpiration rate, photosynthesis rate and root dry weight.
Co-Authors Nurjanah, Uswatun P. Yudono, P. Prapto Yudono Shieddiq, Dja’far