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All Journal Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Buletin Penelitian Tanaman Rempah dan Obat Buletin Penelitian Tanaman Rempah dan Obat
Junita Barus
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Environmental Science

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Phosphorus and Potassium Status in Paddy Soils (Sawah) of Central Lampung Regency Junita Barus
Jurnal Ilmu Tanah dan Lingkungan Vol 9 No 1 (2007): Jurnal Ilmu Tanah dan Lingkungan
Publisher : Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.377 KB) | DOI: 10.29244/jitl.9.1.16-19

Abstract

The knowledge about the nutrient status in the lowland soils is one of several ways to maintain soil fertility and increasefarmers income. The objective of this study was to evaluate the status of P20J and K20 content in paddy soils (sawah) at Central lampung regency during the year 2001/2002. Composite soil samples were collected in each different soil types based on mapping technical survey of I : 50.000 scale. Composite soil samples consisting of 5 - 10 sub samples were taken from top layer (0 - 20 em) depth. Soil sampling was taken by using grid system, that is I cm2 in the map represented 25 ha in the field p]OJ and K~ potential content determined by HCI 25 %. Data were arranged in a descriptive methode and then classified in to three degrees (high, medium and low). High P was> 40 mg P20s/100 g, medium P was 20;.40 mg P201100 g and law P was < 20 mg P;Os/100 g. High K was > 20 mg K20/100 g, medium K was 10 -20 mg K20 /100 g and low K « 10 mg K~/IOOg). The results shawed that soil p;OJ status in paddy soils (sawah) of Centra Lampung regency were 61,65 % high, 35,84 % medium and 2,65 % low while K20 status were 6,64% high, 16,02 % medium and 77,34% low.
Pengaruh Pemupukan NPK Terhadap Pertumbuhan Bibit Lada Perdu Junita Barus
Buletin Penelitian Tanaman Rempah dan Obat Vol 8, No 2 (1993): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v8n2.1993.61-64

Abstract

Pengaruh Pemupukan NPK Terhadap Pertumbuhan Bibit Lada Perdu Junita Barus
Buletin Penelitian Tanaman Rempah dan Obat Vol 8, No 2 (1993): Buletin Penelitian Tanaman Rempah dan Obat
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v8n2.1993.61-64

Abstract

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