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Yulinar Zubaidah
BPTP Sukarami Solok
Agriculture, Biological Sciences & Forestry Environmental Science

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PENGKAJIAN PEMUPUKAN FOSFOR (P) DAN KALIUM (K) BERDASARKAN STATUS HARA PADA TANAH DI DAERAH PERTANAMAN JAGUNG DI KABUPATEN PASAMAN BARAT Yulinar Zubaidah
Jurnal Solum Vol 4, No 2 (2007): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.891 KB) | DOI: 10.25077/js.4.2.40-48.2007

Abstract

Analysis of phosphorous (P) and potassium (K) fertilization based on soil P and K status at maize planting area in Pasaman Barat regency had done on October until December 2005. The research was conducted by using survey method.  The area was surveyed through some trails.  Soil samples were taken in every 500 – 1000 m in distance.  Global Position System (GPS) was used to determine the coordinates of sampling points.  In each point composite bulk soil samples were taken on the top 20 cm soil depth.  Each sample represented about 50 ha area.  The results showed that from 7702.2 ha area surveyed, there was 5351.5 ha (69.4%) of the area having high P content, 1487.5 Ha (19,3 %) having moderate P, and 863.2 Ha (11,2 %) having low P.  Potassium status of the soil in the area was as follows, 2798.4 Ha (36,3 %) having high K, 4499.4 Ha (58,4 %) having moderate K, and 404.4 Ha (5,2 %) having low K. The requirement of SP-36 fertilizer was about 90 kg/Ha, 250 kg/Ha and 500 kg/Ha, for soil having high P, moderate P, and low P content. Potassium was required about 0 kg KCl/Ha, 50 kg KCl/Ha and 250 kg KCl/Ha, for soil having high K, moderate K, and low K, respectively.  The both fertilization recommendation was the amount of SP36 and KCl to reach production about 4,5 ton dry weight corn kernel  (with water content 14%) or it is equal to 8 ton corn weight during harvesting time (with water content 25%).Key Words: P- soil status, K-soil status, fertilizer recommendation
REKOMENDASI PEMUPUKAN FOSFOR (P) PADA PERTANAMAN JAGUNG BERDASARKAN STATUS P TANAH DI KECAMATAN KINALI, LUHAK NAN DUO DI KABUPATEN PASAMAN BARAT Yulinar Zubaidah
Jurnal Solum Vol 5, No 1 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.871 KB) | DOI: 10.25077/js.5.1.1-6.2008

Abstract

A study of P – nutrient status (P – soil) in the maize production central in Kinali, Luhak Nan Duo in Pasaman, Sub Regency Pasaman Barat to find of the recommendation of phosphorous (P) fertilization. A study is conducted from October to December 2005. Method of research by crossed land area and took soil sampling with composite. Each soil sampling represented of land area research 50 – 80 ha with 0 – 20 cm dept for land area 7702,2 ha and 97 soil sample and then analyzed by Bray II methods. From 7702,2 ha of land area were survey founded P high content 5351,5 ha (69,4 %), P – with middle content 1487,5 ha (19,3 %) and P – lower content 863,2 ha (11,2 %). Based on soil P – status, P nutrient requirement to 90,250 and 500 kg SP 36 respectively and yield prospecting 4,5 ton/ha with 14 % water content equal to 8 ton dry grain seed at harvesting with water content 25%.Key Words: P-fertilizer, Fertilization Recommendation, Soil P-status
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