Blog Archives

Ebook Of Analysis Methode: Handbook Of International Center for Agricultural Research in the Dry Areas (ICARDA)

ICARDA logo(Picture from

The idea that one could test or analyze a soil and obtain some information about its properties especially its acidity or alkalinity and its nutrient status is long established, and can be traced back to the beginning of scientific inquiry about the nature of soil. Analysis of plant to reflect fertility status of the soil in which it grew is more recent, although visual crop observations are as old as the ancient Greeks, if not older. In the last few decades, spurred on by commercialization of agriculture and the demands for increased output from limited and even diminishing land resources, both soil and plant analysis procedures have been developed, and are still evolving.

With the advent of chemical fertilizers, the need to know nutrient status of a soil in order to use these expensive and limited inputs more effectively became all the more crucial. However, if soil testing is to be an effective means of evaluating fertility status of soils, correct methodology is absolutely essential. A soil or a field may be assessed for its capability of providing a crop with essential nutrients in several ways:

  1. Field Plot Fertilizer Trials;
  2. Greenhouse Pot Experiments;
  3. Crop Deficiency Symptoms;
  4. Plant Analysis;
  5. Rapid Tissue or Sap Analysis;
  6. Biological Tests, such as Growing Microorganisms; and
  7. Soil Testing prior to Cropping

Read more »

Recomended Ebook: Inorganic Chemistry 5th Edition By Miessler

inorganic chemistry ebookWith its updates to quickly changing content areas, a strengthened visual presentation and the addition of new co-author Paul Fischer, the new edition of this highly readable text is more educational and valuable than ever. Inorganic Chemistry 5th Edition delivers the essentials of Inorganic Chemistry at just the right level for today’s classroom neither too high (for novice readers) nor too low (for advanced readers). Strong coverage of atomic theory and an emphasis on physical chemistry provide a firm understanding of the theoretical basis of inorganic chemistry, while a reorganized presentation of molecular orbital and group theory highlights key principles more clearly (Review By Amazon)

This is readable and high recomended book about inorganic chemistry for chemists and other profesional such as lectures or students at college who want improve their knowledge in the field.
Read more »

Formulir Permintaan Alat dan Bahan Kimia Laboratorium

Dalam kegiatan penelitian dan praktikum di laboratorium, tentunya kita akan memerlukan alat dan bahan kimia. Kebutuhan alat dapat dibedakan menjadi alat penunjang seperti tanur, oven dan neraca analitik dan alat gelas seperti gelas piala, pipet mohr dan buret. Kebutuhan bahan kimia dapat disesuaikan dengan metode pengujian yang digunakan dapat berupa bahan kimia padatan (misalnya garam dan logam), cairan (misalnya larutan asam basa), dan gas (misalnya amoniak dan hidrokarbon). Dalam sistem management laboratorium yang baik diperlukan suatu bentuk dokumen untuk mengendalikan penggunaan bahan kimia dan alat tersebut. Dokumen tersebut dapat berupa formulir pemintaan alat dan bahan kimia di laboratorium.

formulir permintaan alat dan bahan kimia

Read more »