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All Journal SAINS TANAH - Journal of Soil Science and Agroclimatology Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Supraptomo, Edi
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Biochemistry, Genetics & Molecular Biology Education Environmental Science

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Pengaruh Aplikasi Bio-Slurry Cair terhadap Pertumbuhan Bunga Kol (Brassica oleracea var. botrytis L.) Varietas Dataran Rendah Zulaehah, Ina; Supraptomo, Edi
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2018: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.509 KB)

Abstract

Bunga kol termasuk sayuran yang kaya akan manfaat sehingga dibudidayakan secara intensif. Bunga kol (Brassica oleraceae var. Botrytis L.) dapat juga tumbuh di dataran rendah (0-200 m dpl). Bio-slurry cair merupakan hasil samping instalasi biogas yang dapat dimanfaatkan sebagai pupuk organik, yang tentunya akan mengurangi penggunaan pupuk anorganik. Tujuan dari penelitian, ini adalah untuk mengetahui pengaruh aplikasi bio-slurry cair terhadap pertumbuhan bunga kol varietas dataran rendah. Penelitian ini dilaksanakan pada November 2015 - Februari 2016 di Kebun Percobaan Balai Penelitian Lingkungan Pertanian. Penelitian menggunakan rancangan acak kelompok dengan 1 faktor. Varietas bunga kol yang digunakan varietas pertiwi. Hasil penelitian menunjukkan bahwa penggunaan dosis bio-slurry cair 250 ml/tanaman dengan ditambah setengah dosis pupuk anorganik mampu meningkatkan tinggi tanaman, jumlah daun, dan luas daun. Bioslurry cair dapat dipergunakansebagaipupukuntuktanaman bunga kol, sehingga dapat mengurangi penggunaan pupuk anorganik.
Utilization of cattle manure and potassium fertilizer on soil potassium availability and yield of cowpea (Vigna unguiculata L. Walp) in rainfed rice Al Viandari, Nourma; Harsanti, Elisabeth Srihayu; Supraptomo, Edi; Wihardjaka, Anicetus
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 2 (2024): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i2.85535

Abstract

Cowpea (Vigna unguiculata L. Walp), a botanical protein source, exhibits resilience in the face of drought-induced stress on rainfed rice fields, especially in dry season crop patterns. Cowpea growth depends on the availability of nutrients in the soil, including potassium (K). In fact, low K availability (exchangeable K is ≤ 0.04 cmol(+) kg-1) is one of the obstacles in rainfed rice fields, especially in increasing crop yields, including cowpea. Therefore, K supplies from various sources are needed to improve soil and cowpea productivity, such as K fertilizer and manure. This study was carried out to determine the response of nutrient management to increase cowpeas’ yield and exchangeable potassium on rainfed rice fields. The field experiment used a randomized block design, with six replications and six fertilizer management treatments, specifically to control composted cattle manure (CCM), Nitrogen Phosphate Fertilizer (NP), CCM+NP, NPK Fertilizer, and CCM+NPK. The parameters observed include plant height, yield components, seed yield, and exchangeable K. Fertilizer management affects the cowpea yield, yield components, K-Uptake, and exchangeable potassium, with the best treatment depicted as CCM+NPK treatment. Compared to the control, CCM by itself and in combination with inorganic fertilizer increases the kernel yield of cowpea by as much as 54-104%, K uptake as much as 40.9-68.2 kg K/ha, and exchangeable K in soil ranging from 37.8-101.3%. It is indicated that the CCM could supply nutrients, including potassium, to overcome potassium deficiency in rainfed rice fields. Furthermore, applying CCM and cultivating cowpeas in rainfed rice fields during the dry season, with water as a limiting factor, is an appropriate option to enlarge the plant yield.
Co-Authors Al Viandari, Nourma Harsanti, Elisabeth Srihayu Wihardjaka, Anicetus Zulaehah, Ina