High rates of nitrogen on tea: effects on productivity and plant nutritional status
1989
Owuor, P.O. (Tea Research Foundation of Kenya, Kericho)
The profitability of tea as a cash crop is highly dependent on the maximum production within a unit area at reasonable costs. It is therefore necessary to know levels beyond which agronomic practices lead to economic losses. There has been a need to determine fertilizer response curves and to work out fertilizer rates which would help farmers in Kenya to make maximum profits. Three experiments were carried out with high rates of nitrogenous fertilizers to find their effects on tea production. Results are discussed and it is found that response to nitrogen was higher at lower rates and depended on the maturity of different tea clones
显示更多 [+] 显示较少 [-]