JURNAL ILMIAH AGRI PEAT FAPERTA UNPAR


Basuki; dkk ; PENGARUH BOBOT ISI
2 Februari 2009, 6:34 am
Filed under: Penelitian

PENGARUH BOBOT ISI GAMBUT DAN DOSIS KAPUR TERHADAP PERTUMBUHAN TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt)

(The Effect of Bulk Density of Peat and Liming to Growth of Sweet Corn (Zea mays saccharata Sturt))

Basuki1, Gusti Irya Ichriani1 dan Sutikno2

1 Staf Pengajar Jurusan Budidaya Pertanian Faperta Universitas Palangka Raya.

2 Alumni Jurusan Budidaya Pertanian Faperta Universitas Palangka Raya.

ABSTRACT

This research was conducted in screen house of Department of Agronomy, Faculty of Agriculture, University of Palangka Raya. The purpose of the study was to determine the effect of bulk dencity level and liming level to growth of Zea mays saccharata Sturt inland peat. The research was arranged in Complete Ramdomized Design with two factors and three replication. The first factor were level of bulk density with four levels namely 0,2 ; 0,3 ; 0,4 and 0,5 g cm3. The second factor were level of liming with three levels namely 0, 2 and 4 t ha-1. The results showed that the interaction between bulk density level and the application level of liming not significantly affected the growth of Zea mays saccharata Sturt. But bulk density level and the application level of lime as a single factor significantly affected the growth of Zea mays saccharata Sturt. With more hight bulk dencity level will be decreasing the growth of Zea mays saccharata Sturt (number of leaf, area leaf index, plant height and dry weight of shoot). With more hight liming level will be increasing the growth of Zea mays saccharata Sturt.

Keywords: inland peat, bulk dencity,liming, growth, Zea mays saccharata Sturt.

ABSTRAK

Percobaan dilakukan di rumah plastik Jurusan Budidaya Pertanian Universitas Palangka Raya bertujuan untuk mengetahui pengaruh tingkat bobot isi gambut dan dosis pemberian kapur terhadap pertumbuhan tanaman jagung manis pada tanah gambut pedalaman. Percobaan menggunakan Rancangan Faktorial Acak Lengkap dua faktor perlakuan dan tiga kali ulangan. Faktor pertama tingkat bobot isi gambut terdiri dari 4 taraf yaitu 0,2 ; 0,3 ; 0,4 dan 0,5 g cm3, sedangkan faktor kedua dosis kapur terdiri dari 3 taraf yaitu setara dengan 0; 2 dan 4 t ha-1. Hasil percobaan menunjukkan bahwa interaksi antara tingkat bobot isi gambut dengan dosis kapur tidak berpengaruh nyata terhadap pertumbuhan tanaman jagung manis, sebaliknya kedua faktor tunggalnya berpengaruh nyata terhadap pertumbuhan tanaman jagung manis. Semakin tinggi bobot isi tanah gambut justru menurunkan pertumbuhan tanaman jagung manis (jumlah daun, indeks luas daun, tinggi tanaman dan bobot brangkasan kering tajuk). Semakin tinggi dosis pemberian kapur berpengaruh nyata terhadap peningkatan pertumbuhan tanaman jagung manis.

Kata kunci : gambut pedalaman, bobot isi, kapur, pertumbuhan Jagung Manis.


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