论文部分内容阅读
1993年底，全市柑桔面积达3．9万hm2，产量12．7万t，分别占果树总面积和总产量的54．6％和79．4％；但单产低仅为455．0kg（全省581．8kg）。低产主要原因之一是柑桔病虫草防治不当，果园生态受破坏，使效益低下。为此，三明市植保站、果树站于1994～1996年联合开展了“柑桔病
By the end of 1993, the citrus area of the city reached 39,000 hm2 and the output was 127,000 tons, accounting for 54.6% and 79.4% of the total fruit tree area and total output, respectively; however, the yield per unit area was only 455.0kg Province 581.8kg). One of the main causes of low yield is the improper prevention and control of diseases and insect pests of citrus fruits, the damage of orchards’ ecological environment and the low benefits. To this end, Sanming plant protection station, fruit tree station in 1994 to 1996 jointly launched the "citrus disease