Determination of soil texture by using the volume percent can be simpler than the method hydrometer. The principle of determination based on the percent of this volume is based on the speed of precipitation. Wherein the fraction of the rough or the sand will settle early (1 minutes before turning it) and then followed by the fraction of the dust ...
Read More »Determination of Soil Texture With Feelings
Determination of the texture in the field is done by 1) the period of dry or moist soil is wetted, then dipirid between the thumb and forefinger so memebntuk ribbon moist, as he felt a sense of rough, slippery and sticky; 2) the land made the ball, rolled up and observed their resistance to compression and adhesion Masaa ground when ...
Read More »Mekanisme Kerja Filter "Under Gravel"
Sesuai dengan namanya filter “under gravel” adalah sebuah filter yang terletak dibawah lapisan “gravel” (kerikil, pasir) di dasar akuarium. Konstruksinya terdiri dari lapisan bahan anti karat (plastik) berlubang dengan kaki penopang sehingga tercipta ruangan bebas dibawahnya untuk memungkinkan air bersih mengalir (Gambar 5). Disalah satu sudutnya (atau lebih) terdapat pipa keluaran untuk mengembalikan air hasil filtrasi kedalam akuarium. Gambar 5. ...
Read More »Soil Biological Function
Biological soil serves as a habitat for organisms that participate actively in the provision of nutrient and growth boosters substances (additives) for plants, which are integrated capable of sustaining the productivity of the land to produce biomass and production of food crops, medicines, industrial estates, forestry and so on other. As a growing medium, the soil has four main functions, ...
Read More »Definisi Ikan Hidup
Ikan hidup merupakan ikan yang memiliki tingkat kesegaran tinggi. Ditinjau dari peranan ikan sebagai bahan pangan, maka umumnya penanganan yang dilakukan terhadap ikan hidup dimaksudkan agar ikan tetap memiliki kesegaran terbaik. Dengan demikian penanganan yang diberikan harus mampu menghindari ikan dari stress, baik selama pengangkutan maupun ditempat penampungan atau pemasaran. Pemasaran ikan dalam keadaan hidup dapat dilakukan terhadap beberapa jenis ...
Read More »Water Chemistry Parameters Tool
Chemical parameters of the water can not only be measured using digital equipment, but there is also a water quality measurement method using titration methods or staining. Here below is the equipment used in the measurement of water quality parameters by titration can be seen in Table 17. Table 18. Equipment used for the measurement of water quality by titration
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