Pustaka Ilmiah Universitas Padjadjaran

Abstrak

Respons Tanaman Kedelai (Glycine Max) Varietas Wilis Akibat Pemberian Berbagai Dosis Pupuk N, P, K, Dan Pupuk Guano Pada Tanah Inceptisol Jatinangor (Response Of Soybean (Glycine Max) Var. Wilis Due To Application Of N, P, K And Guano Fertilizer Dosages On Inceptisols Jatinangor)

Penelitian ini bertujuan untuk melihat apakah pemberian Pupuk Organik Padat Guano dapat mengurangi penggunaan Pupuk N,P,K. Percobaan dilakukan di Rumah Kaca Fakultas Pertanian Universitas Padjadjaran, Jatinangor dengan ketinggian 754m di atas permukaan laut (dpl) dan menggunakan tanah inceptisol dengan pH 6,18. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok, terdiri dari 8 perlakuan kombinasi dosis pupuk, yang terdiri dari 100% N,P,K, 100% Pupuk Guano, 75% N,P,K + 100% Pupuk Guano, 50% N,P,K + 100% Pupuk Guano, 75% N,P,K + 75% Pupuk Guano, 50% N,P,K + 75% Pupuk Guano, 75% N,P,K + 50% Pupuk Guano serta 50% N,P,K + 50% Pupuk Guano. Percobaan diulang sebanyak 4 kali, dengan demikian terdapat 32 satuan percobaan. Hasil percobaan menunjukkan bahwa pemberian beberapa dosis pupuk N,P,K dan pupuk guano memberikan pengaruh terhadap tinggi tanaman, bobot kering tanaman, biomassa tanaman, jumlah bintil akar efektif, jumlah polong isi per tanaman, jumlah polong hampa per tanaman, bobot biji per tanaman, bobot 100 biji, indeks panen, bobot biji per hektar. Perlakuan 50% N,P,K + 50% Pupuk Guano memberikan hasil yang tidak berbeda nyata dengan perlakuan 100 % NPK pada tinggi tanaman, biomassa tanaman, indeks luas daun, jumlah daun, jumlah polong isi per tanaman, jumlah polong hampa per tanaman, bobot biji per tanaman, bobot 100 biji, indeks panen serta bobot biji per hektar.

This research aims to know the effect of Guano fertilizer application in reducing the uses of NPK fertilizer. The experiment was conducted at the Green House of Agriculture Faculty, University of Padjadjaran, Jatinangor with altitude 754 m up sea level and Inceptisol soil types with pH 6,18. The Experiment was arranged in Randomized Block Design, with 8 treatment combinations several dosages of fertilizer differ from 100% N,P,K, 100% Guano, 75% N,P,K + 100% Guano, 50% N,P,K + 100% Guano, 75% N,P,K + 75% Guano, 50% N,P,K + 75% Guano, 75% N,P,K + 50% Guano serta 50% N,P,K + 50% Guano and four replications, thus there are 32 units of the experiment. The results showed that the treatments of N,P,K fertilizer and guano fertilizer in several dosages influenced on plant height, plant dry weight, biomass of plant, number of effective root nodules, number of filled pods per plant, the number of emptied pods per plant, seed weight per plant, 100 seed weight, harvest index, and seed weight per hectare. However, the treatment of 50% N,P,K + 50% Guano was not significant with control influenced on plant height, biomass of plant, leaves area index, number of leaves, number of filled pods per plant, the number of emptied pods per plant, seed weight per plant, 100 seed weight, harvest index, and seed weight per hectare.