The planting density experiment consists of four density treatments: 1 620 trees/hm2,2 475 trees/hm2,2 925 trees/hm2,and 3 510 trees/hm2.
试验通过对南岭山地杉木密度试验林17年的连续观测,得到了在高立地指数等级条件下密度为:1620株/hm2、2475株/hm2、2925株/hm2、3510株/hm2,4种密度杉木试验林连续17 a的生长的观测值,用以分析不同密度对杉木林分生长的影响。
Seed coating and direct seeding cultivation density experiment of coldly paddy rice was carried out.
进行水稻种子包衣直播栽培密度试验研究,结果表明:寒地水稻种子包衣直播栽培密度以播种800粒/m2(折合用种量200kg/hm2)增产效果较好,比对照增产760。
Test method for density and relative density of plastics
GB/T1033-1986塑料密度和相对密度试验方法
Test methods for density and relative density of fiber reinforced plastics
GB/T1463-1988纤维增强塑料密度和相对密度试验方法
testing method for density of pulpwood and woodchips
纸浆原木和刨花密度试验方法
Refractory materials-Determination of true density
GB/T5071-1997耐火材料真密度试验方法
Light oil products of coal carbonization--Test method of density
GB/T2281-1996焦化轻油类产品密度试验方法
Refractory ceramic fibre products-Determination of bulk density
耐火陶瓷纤维制品 体积密度试验方法
low intensity test reactor
低中子通量密度试验性反应堆
Study on Seed Coating and Direct Seeding Cultivation Density of Coldly Paddy Rice
寒地水稻种子包衣直播栽培密度试验
Experiment on planting density of new maize variety Dekarl 008
玉米新品种迪卡008种植密度试验
Application of electronic balance in the paraffin-coated method to determining soil density
电子天平在蜡封法密度试验中的应用
water pressure test for strength and tightness
水压强度和密封性试验
air pressure test for strength and tightness
气压强度及气密试验
mullen Bursting strength tester
密廉式破裂强度试验机
oil pressure test for strength and tightness
强度和密封性油压试验油压及强度密封试验
oil pressure test for tightness
油密试验油压密封试验
testing method of the density and specific gravity for plastics
塑料的密度及比重试验方法
Dense shaped refractory products-Determination of permeability to gases
致密定形耐火制品透气度试验方法
Test methods of wooden activated carbon-Determination of Apparent density
木质活性炭试验方法 表观密度的测定