Pertumbuhan Dan Produksi Tanaman PAK CHOY (Brassica chinensis L.) Dengan Pemb…

The lowness of pak choy production is occurred because the decrease of soil quality. This are caused by the continious exploitation, the unbalance using of organic fertilizer, the pest and disease attack, the difficulty to get the prime seed variety wich have dangerous disease resistance, the high temperature, and the difficulties for the farmer to accept and to apply the new technology. That p…