McSorley R, Gallaher R N
J Nematol. 1996 Dec;28(4S):655-60.
The effects of a yard waste compost on densities of plant-parasitic nematodes and forage yield of maize (Zea mays) were determined over three seasons in two sites in north Florida. In each test, the experimental design was a randomized complete block with five replications and three treatments: 269 mt/ha of a yard waste compost C:N ratio = 35:1 to 46:1) applied to the soil surface as a mulch, 269 mt/ha of compost incorporated into the soil, and an unamended control. Of the nematodes found in these sites, Paratrichodorus minor was affected most by compost treatments, with densities at harvest reduced by a compost treatment on at least one sampling date in all three seasons (P </= 0.05). Meloidogyne incognita was not consistently affected by compost application. Densities of Criconemella spp. and Pratylenchus spp. were reduced by compost treatment much more often in the third season than in the first two seasons of the study (P </= 0.05). Forage yield of maize was increased (P </= 0.05) by both compost treatments in every test, with yield increases ranging from 10% to 212% over yield levels in unamended control plots and varying with season (P </= 0.05). Use of yard waste compost on agricultural sites may provide a beneficial amendment for crop production and a convenient means for disposal of a common waste product from urban areas. Effects of this compost with high C:N ratio on nematodes were long-term, often not appearing until the third season of the study.
在佛罗里达州北部的两个地点，历时三个季节测定了庭院废弃物堆肥对植物寄生线虫密度和玉米（Zea mays）饲草产量的影响。在每次试验中，试验设计为随机完全区组，重复5次，有3种处理：269公吨/公顷的庭院废弃物堆肥（碳氮比=35:1至46:1）作为覆盖物施于土壤表面，269公吨/公顷的堆肥混入土壤，以及不施肥对照。在这些地点发现的线虫中，微小拟毛刺线虫受堆肥处理影响最大，在所有三个季节的至少一个采样日期，堆肥处理使收获时的线虫密度降低（P≤0.05）。南方根结线虫受堆肥施用的影响并不一致。在研究的第三个季节，环线虫属和短体线虫属的密度比前两个季节更常因堆肥处理而降低（P≤0.05）。在每次试验中，两种堆肥处理均使玉米饲草产量增加（P≤0.05），产量增幅比未施肥对照地块高10%至212%，且随季节变化（P≤0.05）。在农业用地使用庭院废弃物堆肥可为作物生产提供有益的改良措施，并为处理城市常见废弃物提供便利手段。这种高碳氮比堆肥对线虫的影响是长期的，通常直到研究的第三个季节才显现出来。
