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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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Soil Sedimentation Process

The process of transporting sediment (sediment transport) can be described includes three processes as follows: Blow rain (rainfall detachment), the material sediments that are above the ground as a result of spark erosion (splash erosion) can move the particles of the soil will be transported together -Same surface runoff (overland flow). Furthermore washed away into the grooves (rills), and so ...

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Turbidimeter Tools

Turbidimeter is one tool that is functioning to measure water turbidity. Turbidimeter is a tool that has optical properties due to the dispersion of light and can be expressed as the ratio of the light. which reflected the light that arrives. Intensity of light reflected by a suspension is a function of the concentration if other conditions constant. There are ...

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Penyakit Akibat Bakteri Pada Ikan

A. Mycobacterium sp Mycobacterium sp. yang dikenal sebagai penyebab penyakit ” tuberkulosis ikan” (Fish TB), adalah bakteri yang berbentuk batang, dengan ukuran 0,2-0,6 x 1,0-10 μm, bersifat gram positif lemah, tidak bergerak, tidak membentuk spora atau kapsul dan bersifat aerob. Bakteri ini banyak dijumpai di perairan tawar dan laut maupun tanah dengan suhu optimal pertumbuhannya 25-30oc. tidak dapat tumbuh pada ...

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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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