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2013-05-23 12:21
求翻译:The major land use in New Zealand is pastoral farming of sheep and cattle. These managed pastures are highly productive, with increased pasture production being the major goal for the pastoral farmers in order to achieve the highest per hectare animal productivity. The fertility of pasture soils can be substantially al是什么意思?![]() ![]() The major land use in New Zealand is pastoral farming of sheep and cattle. These managed pastures are highly productive, with increased pasture production being the major goal for the pastoral farmers in order to achieve the highest per hectare animal productivity. The fertility of pasture soils can be substantially al
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2013-05-23 12:21:38
在新西兰的主要土地用途是牛羊的畜牧业。这些托管的牧场是高效率,增加牧草生产牧区农民的主要目标,以实现最高的,每公顷动物生产力。牧场土壤的肥力,可以大幅改变,主要是通过粪便和尿液中的沉积,并随后将其改造和土壤中的运输(装料容器等1990b。海恩斯和威廉姆斯1993年)由放牧牲畜。据估计,新西兰农业土壤每年接收从动物排泄物的回收1.58万吨,生物固氮(BNF)的0.9-1.1亿公吨,0.33万公吨肥料N的约300万公吨,约0.01-0.015万吨从大气沉降(装料容器2004年)。在集中放牧的牧场系统(例如,奶牛和羊牧场),动物上的N -丰富的豆科植物为基础的牧场放牧,但没有
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2013-05-23 12:23:18
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2013-05-23 12:24:58
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2013-05-23 12:26:38
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2013-05-23 12:28:18
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