soil-hardness meter 土壤硬度计
soil hardness tester 土壤硬度计
Determination of forest soil hardness 森林土壤坚实度的测定
soil hardness increase 由土壤硬度增加率 ; 土壤硬度增加率
soil-hardness 土壤硬度
Tillage methods affect soil hardness during crop growing.
2.耕作模式影响到作物生育期间土壤的紧实度。
参考来源 - 集约化生产模式下耕作对土壤物理性质的影响及效应分析The recreational activity caused the thickness of litter and humus layer soil water content and the soil pH decreased,and soil hardness increased.
游憩冲击造成4个主要子景区的土壤枯枝落叶层厚度和腐殖质层厚度减少、土壤含水率减少、土壤硬度增加、土壤pH值增加。
参考来源 - 森林游憩对泰山风景名胜区土壤和植被的冲击及游憩环境承载力研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Cover crops can improve the water holding ability of soil; however, its effect on soil hardness depends on the moisture content of soil.
覆盖作物可改善土壤持水能力，但是对土壤硬度的影响与土壤含水率有关。
Scraper with double-sided knife with high-strength wear-resistant materials, board, according to the different soil hardness, the control point of the blade buried.
刮板带双面用高强度耐磨材料刀板，可根据土壤硬度的不同，控制铲刀入土角度。
After the said solutions are mixed by a mixer and sprayed by a sprayer, the soil is rolled with a bulldozer and a roll to obtain appropriate soil hardness for civil engineerings.
用搅拌机和喷洒机将该第一和第二溶液混合和喷洒后，用推土机和辗压机将泥土辗压即可得到适用于土木工程用的土壤硬度。
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