Sawi pagoda dikonsumsi karena kandungan gizinya yang baik. Ketersediaan produksi sawi pagoda dapat ditingkatkan dengan memperhatikan penggunaan media tanam dan pemberian konsentrasi nutrisi. Penelitian ini bertujuan untuk mempelajari interaksi, pengaruh komposisi media tanam, dan pengaruh konsentrasi nutrisi terhadap pertumbuhan dan hasil sawi pagoda pada hidroponik substrat. Penelitian dilaksanakan pada bulan Mei hingga Juli 2021 di greenhouse Jatimulyo Fakultas Pertanian Universitas Brawijaya, Malang. Penelitian ini merupakan percobaan faktorial menggunakan Rancangan Acak Kelompok (RAK). Faktor pertama adalah komposisi media tanam dengan 2 taraf yaitu M1 (pasir dan arang sekam 1:1) dan M2 (cocopeat dan arang sekam 1:1). Faktor kedua adalah konsentrasi nutrisi dengan 5 taraf yakni N1 (800 ppm), N2 (950 ppm), N3 (1100 ppm), N4 (1250 ppm), dan N5 (1400 ppm). Hasil penelitian menunjukkan bahwa terdapat interaksi nyata antara komposisi media tanam dan konsentrasi nutrisi terhadap bobot segar total dan panjang akar sawi pagoda. Perlakuan cocopeat dan arang sekam 1:1 + konsentrasi nutrisi 1250 ppm dan 950 ppm memberikan pengaruh yang sama terhadap bobot segar total dan panjang akar sawi pagoda. Komposisi media tanam cocopeat dan arang sekam 1:1 menunjukkan tinggi tanaman, jumlah daun, lebar tajuk, bobot segar konsumsi, dan luas daun per tanaman sawi pagoda yang lebih tinggi daripada pasir dan arang sekam 1:1. Konsentrasi nutrisi 1250 ppm memberikan jumlah daun yang lebih tinggi dibandingkan dengan konsentrasi nutrisi 1100 ppm dan 1400 ppm.

Research evaluated various nitrogen sources, and a supplementary foliar fertilizer or biochar on cabbage. It was conducted from July to October 2014 in Poncokusumo, Malang ca. 600 meters above sea level. The experiment used a randomized block design with four replications.

Pakchoy (Brassica rapa L. var chinensis) is a horticultural plant that has a high economical value and profitable because it is much favored by the community. The use of organic fertilizer is a step to reduce the use of inorganic fertilizer. Nitrogen plays a role in the formation of chlorophyll, proteins, fats, and other organic compounds. The purpose of the study is to study interactions on organic fertilizer and Nitrogen to the growth and yield of pakchoy crops (Brassica rapa L. var chinensis), as well as obtain appropriate dosages on organic fertilizer and Nitrogen on growth and Yield of Pakchoy crops (Brassica rapa L. var chinensis). The research has been conducted in Ampeldento Village, Karangploso Sub-district, Malang District, East Java. The research was held in 24 July – 29 August 2020. The research was used the method of Randomized Block Design Factorial with two factors and 3 replication. The data obtained were analyzed using ANOVA, if there are any real influence then continued with further test LSD 5%. The results showed that there is an interaction between organic fertilizer and nitrogen to the growth and yield, and Obtained doses of organic fertilizer and nitrogen in cow manure 20 tons ha-1 + (1 liter of cow biourine + 10 liters of water) and 130 kg N ha-1 can increase N in the soil so that it can increase the growth and yield of pakchoy plants.

dose of 250 kg/ha of phosphorus could increase growth, especially plant height and yield of flower cabbage (flower diameter, flower fresh weight, total plant fresh weight, and yield per hectare).

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