Update Artikelilmiah: 6062

YENNI WIDI ASTUTI

NIM

Judul Artikel

Abstrak (Bhs. Indonesia)

Tanah masam merupakan lahan kering yang cukup berpotensi untuk pengembangan berbagai komoditas pertanian namun belum tertangani dengan baik. Tanah masam bereaksi masam pH<5,0, mempunyai potensi keracunan Al, miskin kandungan bahan organik dan peka terhadap erosi serta rendahnya kandungan unsur-unsur nitrogen (N) dan fosfor (P). Hal ini dapat diatasi salah satunya dengan menginokulasikan bakteri pelarut fosfat dan bakteri penambat nitrogen. Penelitian bertujuan untuk mengetahui pengaruh pemberian inokulasi bakteri pelarut fosfat, inokulasi bakteri penambat nitrogen, dan inokulasi bakteri pelarut tanah ditambah bakteri penambat nitrogen terhadap bobot basah, tinggi, kadar nitrogen (N) serta kadar fosfor (P) tanaman tomat. Penelitian dilaksanakan secara eksperimental selama 6 minggu, menggunakan metode Rancangan Acak Lengkap (RAL) dengan 4 perlakuan yaitu 1 perlakuan tanpa inokulasi bakteri serta 3 perlakuan dengan menggunakan inokulasi bakteri pelarut fosfat (BPF), inokulasi bakteri penambat nitrogen (BPN), dan inokulasi bakteri pelarut fosfat (BPF) ditambah bakteri penambat nitrogen (BPN), masing-masing perlakuan diulang sebanyak 4 kali. Data yang diperoleh dianalisis menggunakan analisis ragam (ANOVA) pada tingkat kepercayaan 95% dan 99%. Hasil menunjukkan bahwa bakteri pelarut fosfat (BPF) ditambah bakteri penambat nitrogen (BPN) paling mampu dalam meningkatkan  bobot basah, tinggi, kadar nitrogen (N) dan kadar fosfor (P) tanaman tomat pada tanah masam.

Abtrak (Bhs. Inggris)

Acid soil is the dried soil which has great potential for growing of agriculture commodity but this kind of soil has not been used optimally. The acid soil which has acidity reaction at pH<5,0 has Al poisonous potency, less of organic material and sensitivity toward erosion, and also less of nitrogen (N) and phosphor (P). Those problems can be solved by doing phosphate-solubilizing bacteria and nitrogen fixing bacteria inoculation. The aims of this study were to know the effect of phosphate-solubilizing bacteria, nitrogen fixing bacteria, and the mixture of both of them to the wet weight, height, level of nitrogen and phosphor of tomato plants. This research was conducted experimentally for six weeks by using completely randomized design (CRD) with 4 treatments. One treatment is a treatment without bacteria inoculation and the other treatments used bacteria inoculations which were phosphate-solubilizing bacteria inoculation, nitrogen fixing bacteria inoculation, and the mixture of both of them inoculations. Data were analyzed by using analysis of variance (ANOVA) at the 95% and 99% confidence level. The result proved the mixture of phosphate-solubilizing bacteria and nitrogen fixing bacteria is the most effective inoculation to improve the wet weight, height, level of nitrogen, and level of phosphor of tomato plant in acid soil.

Kata kunci

Pembimbing 1

Pembimbing 2

Pembimbing 3

Tahun

Jumlah Halaman