1) nitrogen and phosphorus budgets
氮磷收支
1.
niloticus,stocked and captured in enclosures was low in nitrogen and phosphorus budgets.
niloticus）混养海水围隔氮磷收支的研究结果表明，投饵和施肥是围隔氮磷收入的主要来源，而底泥积累则占氮磷支出的绝大部分，放养的苗种和收获的养殖产品在氮磷收支中所占的比例很小；对虾与非鲫混养较单养对虾能够明显提高对饵料和肥料中氮磷的有效利用率，但由于混养时投饵和施肥量较单养时多，混养与单养在饵肥料中损失的氮磷量和围隔底泥中氮磷积累量方面实际差别并不大。
2) nitrogen and phosphorus budget
氮磷收支
1.
Basing on the measurement of ingestion, growth, excretions, and faecal production rate of Penaeus Vannamei in aquaria, nitrogen and phosphorus budgets of shrimp, in relation to water temperature, body weight, were established.
采用实验生态的研究方法，查明不同温度和体重条件下南美白对虾的摄食率、生长率、排泄率和排粪率的变化，建立个体氮磷收支模型，并根据研究结果及有关资料对我省沿海对虾养殖产生的环境氮磷负荷及其来源、性质和比例作出评估。
3) nitrogen and phosphorus recovery
氮磷回收
1.
The experiments investigated the effects of aeration and crystallization on pH、SP and the efficiency and the cost of nitrogen and phosphorus recovery.
以北京市海淀区某猪场废水为进水,依托常温厌氧-改进A2/O工艺进行了吹脱结晶试验,研究了曝气吹脱对水样pH值和溶解性总磷浓度的影响,以及氮磷回收的效率和经济性。
4) nitrogen budget
氮收支
1.
Relationship between the nitrogen budget and diet types in juvenile of Oreochromis niloticus;
尼罗罗非鱼幼鱼氮收支与饲料组成关系
2.
Primary study on the nitrogen budget of Penaeus chinensis;
中国对虾(Penaeus chinensis)氮收支的初步研究
3.
Effects of ration on growth and nitrogen budgets of several important marine-cultured fishes
摄食水平对几种重要海水养殖鱼类生长和氮收支的影响
5) carbon and nitrogen budgets
碳氮收支
1.
The experimental studies on the carbon and nitrogen budgets in Pseudeuphausia sinica;
中华假磷虾碳氮收支的实验研究
补充资料：国际收支基本收支差额
国际收支基本收支差额是指一定时期内经常项目与长期资本金融项目借方总额与借方总额之差。
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