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All Journal SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Agrotek Tropika
Bucharie, Henrie
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Agriculture, Biological Sciences & Forestry Education

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PENGARUH APLIKASI KOMPOS DAN PUPUK NPK TERHADAP KEMANTAPAN AGREGAT TANAH PADA PERTANAMAN JAGUNG (Zea Mays L.) Ramadhani, Winih Sekaringtyas; Vernandes, Deo; Afandi, Afandi; Bucharie, Henrie
Jurnal Agrotek Tropika Vol 11, No 4 (2023): JURNAL AGROTEK TROPIKA VOL 11, November 2023
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v11i4.8238

Abstract

Kandungan bahan organik serta unsur hara yang rendah dalam tanah menyebabkan produktivitas tanah semakin menurun. Salah satu upaya untuk meningkatkan produksi jagung dengan penambahan bahan organik dan pupuk NPK. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian kompos dan pupuk NPK terhadap kemantapan agregat, produksi jagung, serta penurunan penggunaan pupuk kimia. Penelitian ini disusun dengan Rancangan Acak Kelompok (RAK) secara non faktorial yang terdiri dari 7 perlakuan yaitu Kontrol, 1 NPK, ¾ NPK, ¾ NPK+ ½ PO, ¾ NPK+ 1 PO, ¾ NPK+ 1,5 PO, dan 1 NPK+ 1 PO. Perlakuan tersebut diulang sebanyak 4 kali sehingga menghasilkan 28 petak percobaan. Data kemantapan agregat, struktur, dan indeks dispersi tanah diolah dengan Microsoft excel dan disajikan dalam bentuk tabel dan grafik, sedangkan data C- organik diolah melalui uji BNJ taraf 5%. Hasil penelitian menunjukkan bahwa  perlakuan kombinasi NPK + kompos mampu meningkatkan kemantapan agregat. Perlakuan pupuk NPK maupun kombinasi pupuk NPK + pupuk kompos berpengaruh terhadap peningkatan produksi jagung. Kemudian untuk kombinasi pupuk NPK + kompos belum mampu menekan penggunaan pupuk NPK.
Metal Extractability Changes in Soils Under Thorny Amaranth Salam, Abdul Kadir; Novpriansyah, Hery; Bucharie, Henrie
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 19, No 2 (2022): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v19i2.65456

Abstract

The different forms of heavy metals may be significantly extracted from soils by plant roots. In a glasshouse experiment, the shifting of soil heavy metal forms under thorny amaranth was examined. To accomplish the research goal, thorny amaranth was planted for four weeks at field water content in soils with varying Cu and Zn contents. Copper and Zn levels in the soil were measured both before and after planting. High soil Cu and Zn levels reduced this plant's height and dry biomasses. Thorny amaranth considerably reduced the exchangeable and available Cu and Zn in the soil. The soil exchangeable and available Cu and Zn had a good correlation with the plant uptakes of these elements. Copper and Zn reductions by planting significantly lower than the available Cu and Zn. A significant portion of the soil exchangeable Cu and Zn shifted to stronger bonding during the incubation time. It was demonstrated that plants absorbed more Cu and Zn from forms different than the soil-exchangeable forms.
Co-Authors Abdul Kadir Afandi Afandi Novpriansyah, Hery Ramadhani, Winih Sekaringtyas Vernandes, Deo