ẢNH HƯỞNG CỦA PHÂN BÓN ĐẾN NĂNG SUẤT LẠC XUÂN TRÊN ĐẤT 1 VỤ LÚA HUYỆN QUANG BÌNH, HÀ GIANG

Experiment has carried out in Quang Binh district, Ha Giang province where 25% of paddy land cannot access to water irrigation in spring season. The objective of field experiment is to improve peanut yield through fertilization. The field experiment has set up with 10 treatments, of which 9 treatments have formularized by three levels of phosphorous 60:75: 90 kg P2O5/ha and three level of potassium 60:75:90 kg K2O/ha on the base of 40 Kg N/ha and 700 kg FYM/ha and farmer practice as control treatment. Research results indicated that fertilization have highly contributed to peanut yield and improved yield from 18-77% as compare with farmer practices. The highest yield obtained 2.6 ton/ha based on the fertilizer rate: 40 kgN/ha + 90 kgP2O5/ha + 90 kgK2O/ha. Its parallel farmer’s income also increased from 2.6-10.7 millions VND.