PENGARUH TAKARAN PUPUK KANDANG SAPI DAN ZA TERHADAP PERTUMBUHAN DAN SERAPAN N, DAN S SAWI PADA INCEPTISOL CANGKRINGAN, SLEMAN

DIAVIKA RACHMA PUTRI, Dr. Ir. Eko Hanudin, M.S.

2014 | Skripsi | ILMU TANAH

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk kandang sapi dan ZA terhadap pertumbuhan vegetatif dan serapan hara N, S tanaman sawi (Brassica juncea L.) dan kandungan unsur hara N, S pada Inceptisol Cangkringan yang digunakan sebagai media tanam tanaman sawi tersebut. Data hasil penelitian ini diperoleh dari data pengamatan di rumah kaca dan data analisis laboratorium yang diolah untuk mendapatkan hasil akhir dari penelitian. Data pengamatan di rumah kaca berupa tinggi tanaman sawi dan jumlah daun, sedangkan data analisis laboratorium berupa hasil analisis sifat fisika-kimia tanah awal, sifat pupuk kandang sapi, sifat kimia tanah setelah perlakuan pupuk kandang sapi dan ZA, serta jaringan tanaman sawi. Hasil serapan total nitrogen tanaman sawi tertinggi terdapat pada perlakuan 40 ton/ha pupuk kandang sapi dan 500 kg/ha ZA sebesar 0,18 g/tanaman dan untuk serapan sulfur tanaman sawi tertinggi terdapat pada perlakuan 40 ton/ha pupuk kandang sapi dan 500 kg/ha ZA sebesar 0,029 g/tanaman. Hasil akhir berat segar dan kering tanaman sawi tertinggi adalah pada perlakuan 40 ton/ha pupuk kandang sapi dan 500kg/ha ZA sebesar 69,32 g dan 5,25 g, akan tetapi secara ekonomis takaran pupuk kandang sapi dan ZA terbaik untuk berat total segar dan kering sawi adalah 20 ton/ha pupuk kandang sapi dan 125 kg/ha ZA sebesar 57,25 g dan 4,07 g. Melihat hasil tersebut menunjukkan bahwa penambahan pupuk kandang sapi dan ZA berpengaruh positif terhadap pertumbuhan dan serapan hara N, S tanaman sawi (Brassica juncea L.). Semakin tinggi takaran pupuk kandang sapi dan ZA yang diberikan, semakin tinggi pula pertumbuhanan serapan hara N, S tanaman sawi.

This research was aimed to know effect of cow manure and ZA to the growth and N, S uptakes of mustard greens and N, S content on Inceptisols Cangkringan that was used as plant media of mustard greens. Research data were obtained from observation data at greenhouse and laboratory analysis data which were processed to get final result from the research. Observation data at greenhouse were consisted o plant height and number of leaves, whereas laboratory analysis data were consisted of chemical and physical properties of initial soil (Inceptisols), chemical properties of cow manure, chemical properties of soils after cow manure and ZA treatment, and plant tissues of mustard greens. The highest result of mustard greens total nitrogen uptakes was 40 ton/ha cow manure and 500 kg/ha ZA treatment a number of 0,18 g/plant and sulfur uptakes was 40 ton/ha cow manure and 500 kg/ha ZA a number of 0,029 g/plant. The highest result of fresh and dry biomass were 40 ton/ha cow manure and 500 kg/ha ZA a number of 69,32 g and 5,25 g, but economically the best dosage of cow manure and ZA for fresh and dry biomass were 20 ton/ha cow manure and 125 kg/ha ZA a number of 57,25 g and 4,07 g. The result showed that increase of cow manure and ZA had possitive effect to the growth and N, S uptakes of mustard greens (Brassica juncea L.). The higher of cow manure and ZA dosage made the growth and N, S uptakes of mustard greens also higher.

Kata Kunci : pertumbuhan, pupuk kandang sapi, sawi, serapan hara, ZA