肥料最大效率期 maximum efficiency stage of fertilization

肥料最大效率期 maximum efficiency stage of fertilization


相关考题:

EffiCieNCy fACtoR:对于分组交换业务为有效因子,代表数据有效因子,可理解() A.EffiCieNCy fACtoR=1-误码率B.激活因子C.传输效率因子D.其他

红细胞外期(exoerythrocytic stage)

红细胞内期(erythrocytic stage)

效率工资(Efficiency wage)

感染期(infective stage)

燃气轮机热效率(thermal efficiency ofgas turbine)

下列选项中对植物营养最大效率期叙述正确的有()。A、此时需要养分的绝对数量最多B、营养吸收速率最快C、肥料的作用最大D、作物增产效率最高

在植物生长发育中有一个时期,植物需要养分的绝对数量最多,吸收速率最快,肥料的作用最大,增产效率最高,此时期称为()。A、植物营养的阶段性B、植物营养最大效率期C、植物的营养临界期D、植物营养的选择性

所谓三E原则,不包括()。A、Effectiveness效益B、Efficiency效率C、Economy经济D、Equity公开

体外受精(In vitro fertilization)

Fertilization

植物营养最大效率期

施肥制度 fertilization system

施肥 fertilization

冬小麦对氮素的最大效率期在()期,玉米在()。

营养最大效率期

EffiCieNCy fACtoR:对于分组交换业务为有效因子,代表数据有效因子,可理解()A、EffiCieNCy fACtoR=1-误码率B、激活因子C、传输效率因子D、其他

最大指示空速用海里/时表示.()A、The maximum instruction airspeeds are shown in nm per hour.B、The maximum indicated airspeeds are shown in nm per hour.C、The maximum instruction airspeeds are shown in knots.D、The maximum indicated airspeeds are shown in knots.

单选题The industrial psychologist's function differs from that of the efficiency experts in that the former _____.Aplaces great emphasis on maximum productionBcares little about the increase of productionCis mainly concerned with workers' satisfactionDworries a lot a out those workers in poor working conditions

单选题Which of the following statements is true concerning the overall efficiency of air compressors?()AHigh pressure compressors are more efficient than low pressure compressorsBMechanical efficiency divided by compressor efficiency will equal the overall efficiency of the compressor unitCTwo stage compressors are generally more efficient than single stage compressorsDThe volumetric efficiency is decreased in multistage compressors

名词解释题阶段营养期 different nutritional stage

名词解释题肥料最大效率期 maximum efficiency stage of fertilization

名词解释题静态效率(Static efficiency)

名词解释题zygotene stage (偶线期)

名词解释题leptotene stage (细线期)

单选题To obtain maximum efficiency, two stage air compressors are usually ().Ahorizontally mountedBnever fitted with intake filtersCfitted with intercoolersDoperated in an unloaded condition at all times

名词解释题营养最大效率期