Raw material supply which still depends on nature has caused genetic erotion of medicinal plants. The objectives of the research were to study creat (Andrographis paniculata Ness.) morphology; and agroecology in many habitat for cultivated be medical substance. The research were conducted at three different locations, ie. at lowland (< 400 m above sea level), middleland (400 -700 m asl.), and upland (> 700 m asl.). The result showed that creat growth on 180 m -861 m above sea level with environmental conditions : temperature 20.320C -26.930C, relative humidity 78% -87%, perticipation 2053.2 mm/ year -3555.6 mm/ year. The creat can growth on soil mineral that contains N medium, P low, K medium, Mg low, Ca verylow until low ,C organic low until medium, and pH less acid until acid. The heihgt plant of creat in middleland is the highest of in lowland and upland, that also leaf of creat. The flower, fruit, and root of creat as good as in the habitat various. The highest andrographolid contain in middleland (2.27%), whereas in lowland (1.37%) and upland (0.89%).
Bawang daun (Allium fistulosum L.) ialah tanaman hortikultura yang dimanfaatkan daunnya. Bertambahnya penggunaan bawang daun oleh pertambahan penduduk maka peningkatan hasil tanaman bawang daun perlu dilakukan dengan aplikasi nitrogen dan pupuk daun. Penelitian ini bertujuan untuk memperoleh adanya pengaruh komposisi pupuk nitrogen dengan komposisi yang berbeda dan pengaruh kombinasi nitrogen pupuk daun pada pertumbuhan dan hasil tanaman bawang daun (Allium fistulosum L.). Penelitian dilaksanakan pada bulan Februari hingga Mei 2018 di lahan percobaan Fakultas Pertanian Universitas Brawijaya, Jatimulyo, Kecamatan Lowokwaru, Malang. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK), terdiri dari 10 perlakuan dan 3 ulangan. Perlakuannya ialah menggunakan pupuk nitrogen pada dosis rekomendasi Urea 300 kg ha 1 dan ZA 600 kg ha-1 atau gabungan urea dan ZA serta kombinasi pupuk daun. Hasil penelitian menunjukkan bahwa aplikasi nitrogen dan pupuk daun memberikan hasil yang terbaik ialah perlakuan kombinasi nitrogen yang diberi penambahan pupuk daun dibandingkan tanpa penambahan pupuk daun. Perlakuan kombinasi nitrogen dan pupuk daun mampu meningkatkan bobot segar konsumsi dari 84,35 g menjadi 148,5 g atau setara dengan 43,20% dibandingkan tanpa pupuk daun.
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