ISMAWATI. NPM. 08.0621.D.Upaya Peningkatan Produksi Tanaman Caisim (Brassica Chinensis) dengan Macam dan Waktu Pemberian Pupuk , di bawah bimbingan Syakiroh Jazilah, SP., MP dan Ir. Pudjiati Syarief,. MP.
ABSTRAK
Penelitian bertujuan mengetahui macam dan waktu pemberian pupuk yang tepat serta interaksinya terhadap pertumbuhan tanaman caisim. Percobaan dilaksanakan di Desa Mulyoharjo Kabupaten Pemalang, jenis tanah Alluvial, mulai bulan Mei sampai Juni 2012. Rancangan percobaan yang digunakan adalah RAK Faktor pertama macam pupuk terdiri atas 4 taraf : tanpa Pupuk, Pupuk Kandang, Pupuk Organik Cair, dan Pupuk Anorganik. Faktor kedua Waktu Pemberian Pupuk terdiri atas 3 taraf : 1 Minggu Setelah Tanam, 2 Minggu Setelah Tanam , dan 3 Minggu Setelah Tanam. Variabel yang diamati meliputi : tinggi tanaman, jumlah daun, luas daun, jumlah akar, panjang akar, berat daun, berat basah brangkasan, berat kering brangkasan, berat segar akar per tanaman, dan berat kering akar per tanaman. Hasil penelitian menunjukkan bahwa macam pupuk berpengaruh sangat nyata terhadap semua variabel yang diamati, pupuk organik cair memberikan hasil terbaik. Waktu Pemberian Pupuk berpengaruh sangat nyata terhadap variabel jumlah daun, luas daun, jumlah akar, berat daun dan berpengaruh nyata pada variabel tinggi tanaman dan panjang akar, sedangkan pada variabel terhadap berat basah brangkasan, berat kering brangkasan, berat segar dan berat kering akar per tanaman tidak nyata. Waktu pemberian pupuk terbaik adalah 2 minggu setelah tanam. Interaksi antara antara macam dengan waktu pemberian pupuk sangat nyata terhadap semua variabel yang diamati. Kombinasi terbaik pada pupuk organik cair dan 2 minggu setelah tanam.
Kata kunci :Macam pupuk, waktu pemberian pupuk, tanaman caisim
ISMAWATI. NPM. 08.0621.D. An effort to increase green mustard production by giving kinds of fertilizer and managing fertilization time, under the guidance of Mrs. Syakiroh Jazilah, SP.,MP and Mrs. Pudjiati Syarief,.MP.
ABSTRACT
The research aims to get information about the kinds of fertilizer, the optimum fertilization time and the interaction both of them toward mustard green plant. The experiment held in mulyoharjo, Pemalang regency at the height of 7.25m, Alluvial soil type, from may-july 2012. The researcher used experimental design firstly, the fertilizer consists of four standards; without Fertilizer, Manure, Liquid Organic Fertilizer and Inorganic Fertilizer. Secondly, fertilization time consist of 3 level; 1 Week After Planting, 2 Weeks After Planting, and 3 Weeks After Planting. There are 12 kinds of combination treatment, each repeated three times so there are 36 units of whole experiment. Observed variables include: plant height, number of leaves, leaf area, number of roots, root length, leaf weight, wet stover weight, dry stover weight, fresh root weight perplant, and dry root weight perplant. The results showed that liquid organic fertilizer gives best result. It was highly significant for all variables were observed. Fertilization time was very significant to some observed variables such as number of leaves, leaf area, number of roots, leaves heavy and significant effect on the variable plant height and length of roots, where as the wet stover weight , dry stover weight, fresh roots weight and dry roots weight perplant was not significantly give different effect. The interaction between the kinds of fertilizers and fertilization time was significant towards all observed variables. The best combination is using a liquid organic fertilizer and giving fertilizer 2 weeks after planting.
Keywords : Kinds of fertilizer, fertilization time , mustard green

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• Upaya Peningkatan Produksi Tanaman Caisim (Brassica Chinensis) dengan Macam dan Waktu Pemberian Pupuk