Nguyễn Văn Tạo và ctv*
*Viện Nghiên cứu Chè, ctv có Nguyễn Văn Niên
Từ khoá: liều lượng, bón phân, lân, chè, giống chè PH1, Phú Hộ, Phú Thọ
The period and phosphate dosage for commercial tea plantation (variety PH1) at Phu Ho station, Phu Tho province
Tea is known to prefer acidic soils of pH 4.5-5.5, but the pH of Vietnam tea field has declined to levels closer to 4.0. To correct this level of low pH, powdered lime or symmetrical inorganic fertilizers are used. Thus, to increase the fertilizer use efficiency of phosphate one possible means is to improve the methods and period of time phosphate application.