Microorganisms In Soil Fertility

The role of microorganisms in soil fertility indicated by its activities in improving, (1) the structure of the soil and (2) the availability of plant nutrients. In connection with the formation of crumb structure, microorganisms play a role as a builder of soil aggregates steady. In the process of the formation of the land required agragasi their inorganic adhesive materials ...

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Water Quality Aquaculture and Shrimp

Fish and shrimp can live a normal life if the environment has water quality that is suitable for life. Water quality parameters that do not fit can be fatal to aquatic life in general. Water quality parameters were very influential in the life of fish and shrimp, among others are: a. Temperature Temperature greatly affects the metabolic processes of fish. ...

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Changes In Water Quality Parameters

In the aquatic environment as a medium of live aquatic biota, frequent changes in water quality parameters such as the degree of acidity (pH – element content of H + or OH-), dissolved oxygen (O2), content of ammonia NH3, the acid content of sulfide (H2S), water temperature and others. Changes in water environment can affect aquatic life, especially for water ...

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Penyakit Yang Disebabkan Virus

Ada beberapa jenis penyakit viral yang sudah di identifikasi antara lain : 1) KHV (Koi Herpes Virus) 2) IHHNV (Infectious Hypodermal and Hematopoitic Necrosis Virus), 3) HPV (Hepatopancreatic ParvolikeVirus), 4) MBV (Monodon Baculavirus), 5) SEMBV(Systemic Ectodermaland Mesodermal Baculovirus) atau WSBV (White Spot Baculovirus) 6) YHV (Yellow Head Virus). 7) IMNV (Infectious Myonecrosis Virus) 8) TSV (Taura Syndrome Virus) 9) WSSV ...

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Pengaruh Struktur Tanah

Struktur tanah sangat berpengaruh dalam bidang pertanian. Tanah sebagai media tumbuh bagi tanaman menjadi penentu seberapa hasil panen yang akan didapat. Jika strukturnya terlalu mantap maka akar akan sulit menembusnya, sebaliknya jika kemantapan strukturnya terlalu lemah maka ketersediaan unsur hara dan air akan sedikit karena tanah tidak dapat mengikat unsur hara dan air dengan kuat, oleh karena itu dibutuhkan struktur ...

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