The evaluation of two cultivation methods to over‐sow perennial clovers into kikuyu .
The aim of the study was to evaluate two over‐sowing practises in terms of seasonal dry matter yield,when kikuyu is over-sown with a mixture of perennial white (Trifolium repens) and red (T.p ratense) clovers.Perennial white clover (T.repens cv,s Haifa or Dusi) or red clovers ( T.p ratense cvs Cherokee or Kenland) were over‐sown at 5 kg ha-1 and 6 kg ha-1,r espectively,into existing irrigated kikuyu pasture using two methods.Each of the methods consisted of different combinations of three implements.They were a mulcher (1,6 meter Nobili with 32 blades),a rotavator (1.55 meter Celli with 36 blades),and Cambridge land roller used during May to prepare seedbeds.Fertiliser was applied to raise the phosphorus level to 35 mg kg-1,potash level to 80 mg kg-1,and the pH (KCL) to 5.5.No nitrogen was applied.Dry matter (DM) production, growth rate and the botanical composition were determined.The clover content of the pasture ranged from 5.2％ to 20.7％ with the mulcher method compared to 15％ to 60％ with the rotavator method.
white clover red clover over‐sow mulcher methods rotavator methods
P.R.Botha R.Meeske H.A.Snyman
Department of Agriculture Western Cape,Outeniqua Research Farm,P.O.Box 249,George,6530,South Africa. Department of Animal,Wildlife and Grassland Sciences,University of the Free State,P.O.Box 339,Bloem
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）