Pengaruh Cekaman Kekeringan dan Pemupukan Kalium Terhadap Pertumbuhan dan Hasil Tanaman Padi (Oryza sativa L.)

Fahlia Ariyadi, Hasanuddin Hasanuddin, Cut Nur Ichsan

Abstract


Abstrak. Tujuan penelitian ini untuk mengetahui pengaruh cekaman kekeringan dan pemupukan kalium terhadap pertumbuhan dan hasil tanaman padi (Oryza sativa L.). Penelitian berlangsung pada bulan Februari – Juni 2021 di Rumah Kaca 2 dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian, Universitas Syiah Kuala, Banda Aceh. Penelitian ini menggunakan Rancangan Petak Terpisah 3x3 dengan 3 ulangan yang terdiri dari perlakuan cekaman kekeringan sebagai petak utama yang memiliki 3 taraf (tanpa kekeringan, kekeringan fase vegetatif, kekeringan fase generatif) dan perlakuan pemupukan kalium sebagai anak petak yang memiliki 3 taraf (50 kg ha-1, 100 kg ha-1, 150 kg ha-1). Hasil penelitian menunjukkan bahwa pemupukan KCl dengan dosis 100 kg ha-1 dapat memperkecil penurunan hasil padi yang mengalami kekeringan fase vegetatif. Pemupukan KCl 150 kg ha-1 dapat memperkecil penurunan hasil padi yang mengalami kekeringan fase generatif.

Effect of Drought Stress and Potassium Fertilization on Growth and Yield of Rice (Oryza sativa L.)

Abstract. The purpose of this study was to determine the effect of drought stress and potassium fertilization on the growth and yield of rice (Oryza sativa L.). The research too place from February – June 2021 at Greenhouse 2 and Plant Physiology Laboratory, Faculty of Agriculture, Syiah Kuala University, Banda Aceh. This study used was a 3x3 Split Plot Design with 3 replication consisting of drought stress treatment as the main plot which had 3 levels (without drought, vegetative phase drought, generative phase drought) and potassium fertilization treatment as a subplot which had 3 levels (50 kg ha-1, 100 kg ha-1, 150 kg ha-1). The result showed that KCl fertilization with a dose of 100 kg ha-1 could reduce the decrease in yield of rice that experienced drought in the vegetative phase. Fertilizing KCl 150 kg ha-1 can reduce the decrease in rice yields that experience drought in the generative phase.


Keywords


Cekaman Kekeringan; Kalium; Inpari 32; Drought Stress; Potassium; Inpari 32

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DOI: https://doi.org/10.17969/jimfp.v7i2.20007

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Fakultas Pertanian,Universitas Syiah Kuala
Jl. Tgk. Hasan Krueng Kalee No. 3, Kopelma Darussalam,
Banda Aceh, 23111, Indonesia.
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