Aplikasi Pupuk Daun dan Boron dengan Taraf Berbeda terhadap Pertumbuhan dan Produksi Indigofera zollingeriana Sistem Mulsa

Abstract

Penelitian ini bertujuan mengetahui pengaruh penggunaan pupuk daun dan boron terhadap respon pertumbuhan dan produksi I. zollingeriana sistem mulsa. Penelitian dilaksanakan di UP3J, IPB University. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan. Perlakuan tersebut adalah B0 = Gandasil® D 30 mg L-1, B1 = B0 + asam borat 0,5 mg L-1, B2 = B0 + asam borat 1,0 mg L-1, B3 = B0 + asam borat 2,0 mg L-1, dan B4 = B0 + asam borat 4,0 mg L-1. Peubah yang diamati meliputi tinggi tanaman, batang diameter batang, jumlah cabang, jumlah ranting, berat segar total, berat segar daun, berat segar batang dan berat kering total. Pemberian pupuk daun dan boron dengan taraf 0,5 hingga 4,0 mg L-1 tidak berpengaruh terhadap parameter pertumbuhan dan produksi biomassa yaitu berat segar batang dan berat kering total. Namun, pemberian pupuk boron 4,0 mg L-1 menurunkan produksi berat segar daun dan berat segar total tanaman I. zollingeriana.

This study aims to determine the effect of foliar fertilizer and boron on the growth and production response of I. zollingeriana mulching system. The research was conducted at UP3J, IPB University. The experimental design used was a completely randomized design (CRD) with 5 treatments and 4 replications. The treatments were B0 = Gandasil® D 30 mg L-1, B1 = B0 + boric acid 0.5 mg L-1, B2 = B0 + boric acid 1.0 mg L-1, B3 = B0 + boric acid 2.0 mg L-1, and B4 = B0 + boric acid 4.0 mg L-1. The observed variables include plant height, stem diameter, number of branches, number of twigs, total fresh weight, leaf fresh weight, stem fresh weight and total dry weight. The application of foliar fertilizer and boron at the level of 0.5 until 4.0 mg L-1 did not affect the growth parameters and biomass production, namely stem fresh weight and total dry weight. The application of 4.0 mg L -1 boron fertilizer decreased the production of leaf fresh weight and total fresh weight of I. zollingeriana plants.