fertilizers. so can the chemical fertilizers mean you don t need animals to foam and you can get big harvests even in soils that lack what they need to deliver these harvests the theory that he had a record. every day of a cause chemical fertilisers unlike sugar it s a lot of energy easily accessible but short lived that s being it you can t run a marathon on sugar alone. meant to be there forever that s why we can t fertilize them with think that you re slow or you ll die. and right now we will put you know 100 kilos of nitrogen and between 40 and 60 of those kilos go somewhere else in the environment they re not taken up by the crop. monoculture and chemical fertilizers constitute a threat to the soil becomes passive and the nutrients end up in oceans lakes and
agriculture a very very sustainable. one condition for sustainable food production is biological diversity right no and in the future could species which ecosystems even life insurance of humanity. i lay it was a state in the law ecosystems even in healthy soil and there are more species than is necessary at any given time and also have enough that down the scale you it provides a buffer in times of stress seen as in the full capacity on the hand and for example climate change that you cannot stand. the meat always come on biological diversity is of enormous importance. i would argue that it is an insurance for the future and forsee. the. hold with
affects all soil organisms especially earthworms who are immensely important to the fertility and structure of the soil in the humus they transport minerals and nutrients from deep down to the surface. in healthy soil this means tons of earthworms and countless miles of their tunnels unfortunately they re in decline. without the earthworm the humus and the ecosystem lose their most brilliant engineer. first learns to not like synthetic fertilizers they do not like as decides they do not like fungicide they do not like herbicides they do not like monocultures they do not like bare soil they need proper residue they need
this is intermediate wheat grass which produces the grain current and it is a relative of wheat it s kind of a cousin of wheat. and it looks like wheat but it has a very important difference we eat is an annual that you need replant every year and has relatively shallow roots kerns has very deep roots and is a perennial sort of grows year after year after year protects the soil builds soil or ghana matter takes up nutrients very efficiently and provides a lot of carbon or soil or solar granik matter for organisms in the soil to eat. by moving the ecosystem the agro ecosystem into a perennial state we think we will not only conserve the saul resource but make
. you are you are putting yourself soil as anything about disposable from the surface wrong takes a long long time to become arable land head and i believe that the rock has to crumble it can take thousands of years before you can grow crops and it they ve got to sort of soar in the good being of the smoke and of late. almost going to loop and they would if we share the planet s arable land to each person look at about 2000 square metres of let the world s population is growing you know rapidly destroying the soil so that figure won t apply in the long run we re getting. sardi s the most important. measure of the world he content 80 percent of the by your most of the world for his readers or valuing system if there were around and if we don t take care of a team he would d argenton then the quality of the production draw in and then we