2) Sprayed by different kind of calcium nutrient
喷施钙肥
3) fertilizer use
化肥施用
1.
Chinese grain production and fertilizer use were temporally and spatially analyzed in terms of the experimental data and the results of investigation.
根据试验研究资料与调查结果，对中国粮食生产与化肥施用进行了时空宏观分析。
4) fertilizer application
肥料施用
1.
21 representative vegetable field with different cropping system and time were selected,based on vegetable production and fertilizer application investigated from suburb of Zhengzhou city,and the soil chemical and physical property and nitrate nitrogen concentration in vegetables were determined,the results showed that nitrogen provided by organic nutrient accounted for 47.
在对郑州市郊区蔬菜生产与肥料施用状况进行抽样调查的基础上,选择不同蔬菜种植时间、不同蔬菜种植模式的21个典型样点,对土壤理化性状和蔬菜硝酸盐含量进行测定,结果发现:蔬菜有机肥提供的氮质量分数为47。
2.
Fertilizer application and nutrient balance from 1985 in Yanzhou were discussed in this paper, the results showed that chemical fertilizer consumption was increasing from 1985 to 1993, yet, it changed little after 1993 Wheat yield increased stablely from 1985 to 1997,and decreased after 1997.
以兖州市为例,分析了1985年以来高产粮区的肥料施用和养分平衡状况。
6) Chemical fertilizer application
化肥施用
1.
Abusement of chemical fertilizer application resulted in soil degradation and threaten sustainable agricultural development.
不当的化肥施用将导致土壤发生各种形式的退化 ,严重威胁着农业的持续发展。
补充资料：钙肥
| 钙肥 calcium fertilizer 具有钙（Ca）标明量的肥料。施入土壤能供给植物钙，并有调节土壤酸度的作用。钙肥的主要品种是石灰，包括生石灰、熟石灰和石灰石粉。石膏及大多数磷肥，如钙镁磷肥、过磷酸钙等和部分氮肥如硝酸钙、石灰氮等也都含有相当数量的钙。钙肥效果与土壤类型有关。在缺钙土壤施用石灰，除可使植物和土壤获得钙的补充外，还可降低土壤pH值，从而减轻或消除酸性土壤中大量铁、铝、锰等离子对土壤性质和植物生理的危害。石灰还能促进有机质的分解。石灰施用量因土壤性质（主要是酸度）和作物种类而异。多用作基肥，常与绿肥作物同时耕翻入土。但施用过多会降低硼、锌等微量营养元素的有效性和造成土壤板结。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条