Distribution 发表于 2025-3-26 23:39:32

Frederick A. Leckie,Dominic J. Dal Bello the specific details of mineral fertilizer use. Although plants receive a natural supply of nitrogen, phosphorus and potassium from organic matter and soil minerals, this is not usually sufficient to satisfy the demands of crop plants. The supply of nutrients must therefore be supplemented with fertilizers, 978-90-481-6459-2978-1-4020-2536-5

Gene408 发表于 2025-3-27 04:36:13

http://reply.papertrans.cn/88/8796/879527/879527_32.png

发微光 发表于 2025-3-27 09:11:26

http://reply.papertrans.cn/88/8796/879527/879527_33.png

分开如此和谐 发表于 2025-3-27 09:53:57

http://reply.papertrans.cn/88/8796/879527/879527_34.png

玩忽职守 发表于 2025-3-27 15:18:27

Frederick A. Leckie,Dominic J. Dal Bellofic details of mineral fertilizer use. Although plants receive a natural supply of nitrogen, phosphorus and potassium from organic matter and soil minerals, this is not usually sufficient to satisfy the demands of crop plants. The supply of nutrients must therefore be supplemented with fertilizers,

含铁 发表于 2025-3-27 18:45:30

http://reply.papertrans.cn/88/8796/879527/879527_36.png

Patrimony 发表于 2025-3-28 01:36:10

Frederick A. Leckie,Dominic J. Dal Bellofic details of mineral fertilizer use. Although plants receive a natural supply of nitrogen, phosphorus and potassium from organic matter and soil minerals, this is not usually sufficient to satisfy the demands of crop plants. The supply of nutrients must therefore be supplemented with fertilizers,

灌输 发表于 2025-3-28 04:19:58

http://reply.papertrans.cn/88/8796/879527/879527_38.png

Ferritin 发表于 2025-3-28 07:42:50

http://reply.papertrans.cn/88/8796/879527/879527_39.png

miracle 发表于 2025-3-28 10:44:35

http://reply.papertrans.cn/88/8796/879527/879527_40.png
页: 1 2 3 [4] 5 6
查看完整版本: Titlebook: Strength and Stiffness of Engineering Systems; Dominic J. Bello,Frederick A. Leckie Textbook 2009 Springer-Verlag US 2009 Dal Bello.Engine