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- What is the cost of using nitrogen fertilizer on a rice crop? 水稻使用氮肥的成本是什么?
- Abstract: The SPAD - 502 chlorophyll meter appears promising for rapid, on-farm analysis of crop nitrogen status. 文章摘要: 叶绿素仪（SPAD-502）的出现使通过无损伤的田间速测对作物进行氮营养诊断成为可能。
- The SPAD-502 chlorophyll meter appears promising for rapid,on-farm analysis of crop nitrogen status. 摘要 叶绿素仪(SPAD-502)的出现使通过无损伤的田间速测对作物进行氮营养诊断成为可能。
- Whether placement of nitrogen fertilizer below the layer of crop residue will reduce nitrogen immobilization is not clear. 对于把氮肥施在植物残体覆盖层以下是否会减少氮的固定，这个问题目前尚不清楚。
- Gravelle et. al., 1988).Such a fertilization program maximizes crop response and utilization of the nitrogen fertilizer. 这样我们就能制订出既能使作物增产又能提高氮肥利用率的施肥计划。
- Use the SPAD-502 chlorophyll meter to rapid,on-farm analysis crop chlorophyll status and nitrogen fertilizer recommendation. 摘要 利用叶绿素仪SPAD-502进行田间快速测定,并对作物进行氮肥推荐。
- Shan Y H,Leng S H,Hui F H,Zhu G R.A study on the branch productivity of rape regulated by nitrogen fertilizer[J].Oil Crop China,1995,17(4):23-26. [2]单玉华;冷锁虎;惠飞虎;朱耕如.;氮肥对油菜分枝生产力的调节作用[J]
- Changes of starch and protein in developing barley grain and its respondance to nitrogen fertilizer[A].Barley Committee of Chinese Crop Science Society. (中国作物学会大麦专业委员会)。
- The crop yield can increase continuously by fertilization in reason;the effect of fertilization was nitrogen fertilizer, phosphate fertilizer and potassium fertilizer in turn. 合理施肥可以持续提高农作物产量,其施肥效果依次为氮肥、磷肥、钾肥；
- Should nitrogen fertilizer be applied after injected swine manure? 如何树立种猪引入的科学理念?
- The amount of nitrogen fertilizer had been steadily increased along with the development of the indica-japonica cross varieties during the last 15 years. 过去15年中随着籼-粳杂交品种的发展，氮肥用量持续增长。
- Excessive application of nitrogen fertilizers results in tardy bearing. 施用过量的氮肥结果使树延迟结果。
- There was a record wheat crop last year. 去年小麦收成创最高记录。
- These plants need no nitrogen fertilizers and leave the soil rich in nitrogen. 这样的植物不需要施用氮肥，并且还给土壤留下了丰富的氮。
- Utilization efficiency of nitrogen fertilizer and Kalium were enhanced. 促进番茄对氮和钾的吸收。
- I got a new coat in that store last week. 上礼拜我在那家店买了一件新外套。
- That was infinitely better than his last film. 这比他上一部电影不知胜过多少倍。
- Chaling County Nitrogenous Fertilizers P. 茶陵县氮肥厂。
- Anhua County Nitrogenous Fertilizer Fact. 安化县氮肥厂。
- Anren County Nitrogenous Fertilizers Pla. 安仁县氮肥厂。
