Browsing by Author "Ali Jamil"

Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    CLAY MINERALS AS A FACTOR THAT INFLUENCE PHOSPHORUS RETENTION IN SOILS
    (Balai Pengkajian Teknologi Pertanian (BPTP) Balitbangtan Riau, Badan Penelitian dan Pengembangan Pertanian, Kementerian Pertania, 2007-12-02) Ali Jamil; BPTP RIAU
    The surly lands of the tropic, which fall into the company of the order of ultisoi and ocsisol are further overgrown, conceives In large quantities a colloid of unassigned variables, has ph Earth (soil: water 1:1) lower than 5.0 das have a capacity Low kation exchange (CTK) (usually smaller than 10 cmoles (+)kg-l With a very high level of base saturation and aluminum saturation, with high levels of above 80%.Phosphorus is available to low plants, just as calcium, calcium, and magnesium are exchanged. At sour sows, reactions between phosphate and nonbiological components of the soil involve the active surface of fe and al minerals Soil minerals like allofan, ferrihydrite and gutit, hematite and kaolinit Is a very reactive kind. The minerals together with the humus-al complex are probably the most active components reacting with phosphate in the sour soils. The capacity for phosphorous preparation (p) of clay minerals depends on many factors, including the large surface proportion it holds.Actually, caolinit (see 1:1) more p per unit of surface area than the mineral 2:1. Andil soils with high anion retention capacity, associated with high al and fe compounds.Compound po4 retention by soil minerals varies in increase In order, hematite < gutit natural < ferrihydrit < allofan. Julah p Inorganic compounds extracted from fe And al varies by distribution and decline by sequence: allofan > fresh gel > gel pseodobumit fe > gel al al > aged gel gel The p covers 30 to 70 times more than giblies, and the gel fe deposits about 10 times more than the same crystalline mineral shape (hermatite, gutit, and acagenit). Key words: minereal clay, affecting, phosphorus, retention
  • No Thumbnail Available
    Item
    Pengembangan Pertanian Presisi Solusi dan Jawaban Pembangunan Pertanian Ke Depan
    (Pertanian Press, ) Andi Amran Sulaiman; Ali Jamil; Abd Haris Bahrun; Trip Alihamsyah; Kuntoro Boga Andri; Muhammad Arsyad; Hermanto
  • Thumbnail Image
    Item
    Petunjuk Teknis
    (Balai Pengkajian Teknologi Pertanian Sumatera Utara, 2016-04-09) Ali Jamil; Sarlan Abdulrachman; Priatna Sasmita
    Padi telah menjadi bagian dari kehidupan masyarakat indonesia sehingga tidak dapat di pungkiri bahwa komoditas ini telah turut mempengaruhi tatanan politik dan stabilitas nasional. selain sebagai makanan pokok lebih dari 95% penduduk, padi juga menjadi sumber mata pencaharian sebagian besar petani di pedesaan. Perhatian khusus harus diberikan untuk meningkatkan hasil per satuan luas dengan menerapkan perbaikan teknologi dalam teknik budidaya tanaman.
  • Thumbnail Image
    Item
    Petunjuk Teknis Budidaya Salak Sidimpuan
    (Balai Pengkajian Teknologi Pertanian Sumatera Utara, 1999-01-01) Sariman; darwin Harahap; Ali Jamil
    Salak Sidimpuan merupakan salah satu komoditas spesifik yang dimiliki Propinsi Sumatera Utara. Permintaannya cukup tinggi karena diminati oleh konsumen dalam maupun luar negeri.
  • Thumbnail Image
    Item
    Varietas Unggul Baru Padi
    (Badan Penelitian Dan Pengembangan Pertanian, 2017-10) Ali Jamil; Satoto; Priatna Sasmita
    Dalam mendukung swasembada pangan utamanya padi, jagung, kedelai. Badan Penelitian dan Pengembangan Pertanian melalui Balai Besar Penelitian Tanaman Padi sejak tahun 2007 hingga 2016 telah melepas berbagai Varietas Unggul Baru (VUB) padi spesifik lokasi untuk semua agroekosistem budidaya padi. Mulai tahun 2008, penamaan VUB yang dilepas tidak lagi menggunakan nama sungai tetapi menggunakan istilah baru, yaitu; Inpa (INBRIDA PADI).