Nguyễn Thị Hiền, Nguyễn Thị Dần, Nguyễn Thị Loan (trang 109-115)
Từ khoá: hiệu lực, kali, lạc, đất bạc màu, Hà Bắc, Bắc Giang
Summary
Effect of potassium fertilizer for spring ground nut on degraded gray soil in Bac Giang province
Application of K fertilizer increase the growth, groundnut production and up take of N, P, K in its stem and leaves. Ground nut production has increased from 160kg to 570kg per hectare by application of K fertilizers. It has increased protein content of peanut. Oil content almost is unchangeable in the nut although the soil is applied K fertilizer but production of oil increased owning to increasing of peanut yield.