Abstract
ABSTRACT Nutrients are an important factor in the cultivation of chrysanthemum cut plants. Availability of nutrients is needed during plant growth and in increasing crop production, therefore the addition of nutrients in the form of fertilizer is needed by cut chrysanthemum plants. The use of effective and efficient fertilizers is an indicator in the growth of chrysanthemum cut plants. The purpose of this research was to determine the optimal doses of cattle manure and biourine concentration for the growth of chrysanthemum cut plants. This research was designed with a Randomized Complete Block Design consisting of two factors. The first factor is cattle manure dose which consists of three levels, namely 2 kg per m2 (K1), 3 kg per m2 (K2), and 4 kg per m2 (K3). The second factor is the concentration of biourine which consists of 4 levels, namely 0 ml L-1 of water (B1), 250 ml L-1 of water (B2), 500 ml L-1 of water (B3), and 750 ml L-1 of water (B4). All treatments were repeated 4 times, so that a combination of 48 plots was obtained. Observation parameters included plant height, number of leaves, stem diameter, leaf length, leaf width, chlorophyll number, flower initiation, flower diameter, flower stem diameter, and flower stalk length. The use of cattle manure at a dose of 2 kg per m2 without the addition of biourine has been able to become the optimal input for the growth of chrysanthemum cut plants.
Highlights
PENDAHULUAN Ketersediaan unsur hara menjadi salah satu kunci penting dalam meningkatkan pertumbuhan tanaman krisan potong
Nutrients are an important factor in the cultivation of chrysanthemum cut plants
Availability of nutrients is needed during plant growth
Summary
Rata-rata tinggi tanaman krisan potong pada Tabel 1 menunjukkan bahwa terdapat perbedaan yang nyata antara perlakuan dosis pupuk kandang sapi dosis 3 kg per m2 (K2) dengan 4 kg per m2 (K3) pada rerata tinggi tanaman krisan potong umur 14 HST dan 28. Hal ini berkaitan dengan masa vegetatif tanaman, dimana pada umur 14 HST dan 28 HST kebutuhan unsur hara N sangat tinggi untuk merangsang pertumbuhan tanaman (Salisbury dan Ross, 1995), sehingga semakin tinggi dosis yang diberikan maka lebih berpengaruh terhadap tinggi tanaman krisan potong. Hal berbeda ditunjukkan pada perlakuan biourine, dimana tidak ada pengaruh yang nyata pada berbagai tingkatan konsentrasi terhadap tinggi tanaman. Rata-rata jumlah daun pada Tabel 2 menunjukkan bahwa tidak terdapat perbedaan yang nyata antara perlakuan dosis pupuk kandang pada rerata jumlah daun, baik pada umur 14, 28, 42, 56, maupun 70 HST, begitu juga pada perlakuan biourine
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