忘川河
发表于 2025-3-26 22:32:24
http://reply.papertrans.cn/67/6667/666659/666659_31.png
一再困扰
发表于 2025-3-27 04:03:21
http://reply.papertrans.cn/67/6667/666659/666659_32.png
spondylosis
发表于 2025-3-27 06:55:56
Nitrogen gains and losses in sugarcane (, sp.) agro-ecosystems on the coast of Peru,o the system . irrigation water from rivers and deep wells. 1.2% of the total N in the soil is in available form during the growing season. N extracted by the aerial part of the plants ranges from 210–246 kg N ha. crop.; .. 70% of this is removed in the harvest, and most of the remainder is lost . pre-harvest burning.
音乐等
发表于 2025-3-27 13:11:48
http://reply.papertrans.cn/67/6667/666659/666659_34.png
adroit
发表于 2025-3-27 15:57:39
http://reply.papertrans.cn/67/6667/666659/666659_35.png
incite
发表于 2025-3-27 20:10:06
http://reply.papertrans.cn/67/6667/666659/666659_36.png
Harrowing
发表于 2025-3-28 00:05:54
http://reply.papertrans.cn/67/6667/666659/666659_37.png
谦虚的人
发表于 2025-3-28 03:57:20
http://reply.papertrans.cn/67/6667/666659/666659_38.png
过度
发表于 2025-3-28 07:08:54
http://reply.papertrans.cn/67/6667/666659/666659_39.png
仔细阅读
发表于 2025-3-28 11:47:11
http://reply.papertrans.cn/67/6667/666659/666659_40.png