papertrans
发表于 2025-3-21 16:59:19
书目名称Nitrogen in Soils of China影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0666688<br><br> <br><br>书目名称Nitrogen in Soils of China读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0666688<br><br> <br><br>
序曲
发表于 2025-3-21 23:06:35
http://reply.papertrans.cn/67/6667/666688/666688_2.png
Rankle
发表于 2025-3-22 03:55:40
Transformation and management of manure nitrogen,tilizer industry, consumption of fertilizers has been raised dramatically, while the relative contribution of organic manure to the total input of nutrients, especially N, has declined continuously. Nevertheless, the absolute amount of nutrients applied as organic manure has increased significantly.
otic-capsule
发表于 2025-3-22 07:33:32
Forms and amount of nitrogen in soil, of N in soil is essential for understanding the N supply characteristics of a soil and for the efficient management of fertilizer N. In this chapter, a brief account of the forms, distribution and amounts of N in the soils of China is presented.
Acetaldehyde
发表于 2025-3-22 11:00:37
Fixation and release of ammonium,son 1959; Stevenson and Dhariwal 1959). Fixed ammonium may account for as much as 50% of the total N in the top metre of some soils, and the fixation and release of ammonium plays a prominent role in the internal cycle of N in soils.
打谷工具
发表于 2025-3-22 12:54:27
Nitrogen management and environmental and crop quality, Dalian, reviewing the progress in the related research fields in China (EBESIN 1983). This chapter will discuss the problems for environmental quality caused by N loss from fertilizer applications to field crops, their counter measures, and the interrelationships between field N management, crop quality and animal health.
Champion
发表于 2025-3-22 19:58:39
http://reply.papertrans.cn/67/6667/666688/666688_7.png
泥土谦卑
发表于 2025-3-23 01:06:43
Denitrification,ion so that the terminal product is N2 rather than gaseous N oxides (Picard and Faup 1980; Roger .. 1976). In this way, it is possible to prevent the water body from being polluted by nitrate and ensure that the atmosphere is not contaminated with gaseous N oxides.
DUST
发表于 2025-3-23 03:31:53
Ammonia volatilization,s negligible (Denmead .. 1977), but it was as high as 47% of the applied N when the fertilizer was applied to the floodwater after transplanting rice, when the weather was sunny and the winds were strong (Fillery .. 1984).
博识
发表于 2025-3-23 09:17:34
Biological nitrogen fixation,ural production throughout the world. Dou (1989a) estimates that N input through BNF was greater than fertilizer N input in Australia, New Zealand and USA. In China, N input through BNF in 1987, though much less than fertilizer input, still amounted to 14.5% of the total input in agriculture (Table 14.9).