Maybe,we could return to the OP,which was that Hitler attacked the SU for food ,raw mateials and living space ,implying that after the war,the Ukraine would be some German Eldorado (we all know Hitler's visions),the OP being very adroitely hyjacked by the General,I will repeat some of my questions ,specifically on the agriculture section.
1)Tooze writes that following the German experts,Germany needed 8 million ha farmland extra,some 100000 farms .
Where would Germany find al these men and woman for these farms,where already before the war,young people were leaving the countryside?
2)The costs for machines,fertilizers,housing,etc,would be prohibitive for these new farmers,unless,...all would be paid by the state (=the taxpayer)
3)How would these new farmers compete with the farmers of the old Reich ? Only,if their products would be cheaper(which is dubious,considering the transportcosts,of course,one can think that the taxpayer,again,would pay).If the agriculture colonisation of the Ukraine would be a successfull story,it would result in the end of the agriculture in the old Reich,with very dangerous political consequences.
5)If the farmers in the Ukraine would have to produce without subsidies,the result would be the same as happened in the US after 1880:farmer revolts;or,they would leave the farms and the colonisation would stop;
And,IMHO,is is the same for the economical colonisation .
6)Saying that if the Germans were able to obtain during the war food and raw materials from the Ukraine,they could after the war colonize the Ukraine economically and agriculturally,is not proving a basic knowledge of economy .
7)About the manganese ore of Nikopol :I have read in his memoirs,that Speer was supporting the military in the ar gument with Hitler(who was refusing the withdrawal from Nikopol),by saying that Nikopol was not essential for the German war economy .Adolf,of course,was not pleased .