摘要
为研究化学除草技术对桉树幼林抚育的影响。选择桉树巨尾桉一年生萌芽林作为试验林,选用3种除草剂进行了对比分析,分别为30%自主化工厂草甘膦、10%草舒和30%林得力草甘膦,在3种浓度(150 mL、200 mL、250 mL)下分别与15 kg水充分混合,共设计9个处理,在土壤、肥力等条件相同的地块进行了试验,对不同化学除草剂、不同使用浓度下桉树幼林杂草死亡率、杂灌死亡率进行了比较。结果表明:①杂草死亡率:10%草舒除草效果最好,且随着浓度的增加,杂草死亡率随之升高,最高达到96.2%;②杂灌死亡率:随着不同除草剂浓度的增加,杂灌死亡率随之升高,3种除草剂杂灌清除效果未呈现明显差异性(P>0.05);③喷药成本:以每亩林地为准,3种化学除草剂喷药成本由低至高的顺序分别为30%自主化工厂草甘膦、0%林得力草甘膦、10%草舒。通过综合对比认为,在不考虑喷药季节的情况下,采用200 mL浓度10%草舒+15 kg水混合或200 mL浓度30%林得力草甘膦+15 kg水混合方案,桉树幼林除草抚育效果最佳。
This paper analyzes the effect of chemical weeding technology on young Eucalyptus plantation tending.The annual sprout forest of Eucalyptus grandis was selected as the experimental forest,and three herbicides were selected for comparative analysis,namely,30%glyphosate from independent chemical plants,10%Caoshu and 30%Lindeli glyphosate.Under three concentrations(150ml,200ml and 250ml),they were fully mixed with 15kg water respectively.A total of nine treatments were designed.The experiments were conducted on plots with the same soil and fertility conditions.Different chemical herbicides,and the mortality of weeds and miscellaneous irrigation in young Eucalyptus forests under different concentrations were compared.The results showed that:①Weed mortality:10%Caoshu had the best weed control effect.With the increase of concentration,the weed mortality increased,up to 96.2%;②Mortality rate of miscellaneous irrigation:With the increase of different herbicide concentrations,the mortality rate of miscellaneous irrigation increased,and the clearance effect of three herbicides by miscellaneous irrigation did not show significant difference(P>0.05);③Spraying cost:based on each mu of forest land,the spraying cost of the three chemical herbicides from low to high is respectively 30%glyphosate from independent chemical plants,0%Lindeli glyphosate and 10%Caoshu.Through comprehensive comparison,it is considered that the weeding and tending effect of young eucalyptus trees is the best when the mixture of 200ml 10%Caoshu+15kg water or 200ml 30%Lindelic glyphosate+15kg water is used without considering the spraying season.
作者
冯军利
孙启军
刘继峰
Feng Junli;Sun Qijun;Liu Jifeng(Culaishan Forest Farm of Tai'an City,Tai'an,Shandong 271000,China)
出处
《绿色科技》
2022年第19期123-126,共4页
Journal of Green Science and Technology
关键词
化学除草剂
桉树幼林抚育
10%草舒
草甘膦
chemical herbicide
Young Eucalyptus forest tending
10%Caoshu
glyphosate
