CAJ | 학술논문

[目的]对河北农业大学筛选出的野生栽培品种"邯郸"狗牙根草坪进行不同氮肥用量研究,以期为该品种在冀中南地区的推广应用提供理论依据和技术指导.[方法] 试验采用随机区组设计,氮肥施用量设4个水平,分别为高(N2 9 g/m2)、中(N2 6 g/m2)、低(N2 3 g/m2)和对照4个处理,3次重复,共12个小区,每个小区面积为1 m2.所有小区磷钾肥施用量为P2O5 4 g/m2和K2O 4 g/m2.在狗牙根生长季节(5~10月),按上述施肥量于每月22日施肥一次,年施肥6次.草坪修剪高度4 cm,修剪频率视草坪生长快慢而定.对草坪进行适量灌溉以保持无干旱胁迫.草坪质量评分按国际NTEP 9分制评分标准[1],草屑积累量测定采用烘干法.[结果]结果表明,在华北地区进行"邯郸"狗牙根草坪栽培,对中高质量要求的狗牙根草坪,以中氮(N2 6 g/m2)处理的草坪效果较好.[结论]施用氮肥可以有效提高狗牙根草坪的色泽和密度,明显改善草坪质量,延长狗牙根草坪的绿色期;草坪修剪积累的草屑量随施氮量的增加也随之增加.
[목적]대하북농업대학사선출적야생재배품충"함단"구아근초평진행불동담비용량연구,이기위해품충재기중남지구적추엄응용제공이론의거화기술지도.[방법] 시험채용수궤구조설계,담비시용량설4개수평,분별위고(N2 9 g/m2)、중(N2 6 g/m2)、저(N2 3 g/m2)화대조4개처리,3차중복,공12개소구,매개소구면적위1 m2.소유소구린갑비시용량위P2O5 4 g/m2화K2O 4 g/m2.재구아근생장계절(5~10월),안상술시비량우매월22일시비일차,년시비6차.초평수전고도4 cm,수전빈솔시초평생장쾌만이정.대초평진행괄량관개이보지무간한협박.초평질량평분안국제NTEP 9분제평분표준[1],초설적루량측정채용홍간법.[결과]결과표명,재화북지구진행"함단"구아근초평재배,대중고질량요구적구아근초평,이중담(N2 6 g/m2)처리적초평효과교호.[결론]시용담비가이유효제고구아근초평적색택화밀도,명현개선초평질량,연장구아근초평적록색기;초평수전적루적초설량수시담량적증가야수지증가.
[Objective]The paper aimed to study effects of Nitrogen rate on the growth and turf quality of wild cultivars " Handan " bermudagrass selected by Agricultural University of Hebei which expected to provided theoretical basis and technical guidance for popularization and application of this variety in middle and south Hebei Province. [Method] Test designed at random, amount of nitrogen fertilizer designed as high "N2 9 g/m2 ",middle "N2 6 g/m2 "and low "N2 3 g/m2"and control of 4 treatments, 3 times repeat, total 12 area of 1 m2. Amount of nitrogen fertilizer of all the area were: P2O5 4 g/m2 and K2O 4 g/m2. In the growth season of bermudagrass ( May-October ), 22th of every month were fertilized, 6 times a year. mowing height of turf was 4 cm and mowing frequency depended on the growth speed, adequate irrigation in order to keep no-drought stress. Turf quality score were followed by international NTEP 9 scores standard, clipping yields were measured by drying method. [Result] The results showed that bermudagrass cultivated in North China, regarding the middle-high quality bermudagrass, middle nitrogen treatment had the better effects. [Conclusion] Nitrogen fertilizer can effectively enhance color and density, improve turf quality, prolonged the green period of bermudagrass turf; Clipping yield increased significantly with nitrogen applied rate increased.