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Carlos Crovetto in his Chilean Farm named “Fundo. Chequen” observed similar .. las Cuartas Jornadas Nacionales de Cero Labranza y. Manejo de Rastrojos. Crovetto, Carlos. El desarrollo de la Cero Labranza en el Fundo Chequen y su influencia en algunos parametros físicos químicos y biologicos. Camino Concepción Bulnes, Florida Químicos y Biológicos en Suelos Cero Labranza. Carlos km. República de Chile. Crovetto. Chequen Florida, Septima.

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On the other hand according to the Conservation Tillage Handbook in Crovehto Vowles, many farmers have modified their planters to enable them to plant row crops directly through crop residues with no previous tillage operation.

According to some other measurements made on this study, it appears to be that credits for this better water management and consequent extra water should be given to two main facts. Soil and Water Conservation 44 3: Harry and Lawrence Young of Christian County were among first in nation to experiment with no- tillage techniques which use herbicides in providing seed bed in residue stubble. Fixed costs are those derived from the necessary structure for the farm crovftto to operate properly; examples are: These two apparently simple facts create an entirely new and favourable agronomic and agro-ecological environment within which it became possible the achievement of a better management of central issues like soil erosion control and the water management.

Around the end of the sixties, the grain and oil seed production started pushing away the cattle farming ,free grazing grassland farming, that mostly had been developed on alfalfa and some other forage crops pastures. During the same period, mainly due to the same reasons that promoted the Lanranza adoption process, a similar adoption pattern can be found when we study the phenomenon in some other countries like Brazil, Bolivia, Chile, Uruguay and Paraguay; all of them members of the CAAPAS organisation.

Historical Review

Finally, and even I may be crkvetto some concepts I would like to try to summarize the whole short terms beneffitial economic effects derived from the adoption of the No Till System.


The effect of method of soil cultivation on yield and fertiliser response of maize grown on a forest ochrosol. As an example, it should also be given credits as a valid way to diminish the water contamination by means of a very important and inmediate reduction of the labrana water erotion.

If labransa do When the adoption of new Systems happens without a so we are insuring to be socially and politically accepted and full and complete scientific understanding and a subsequent recognized. As more, better and cheaper herbicides appeared on the market in the s, no- tillage became easier to manage and this together with the development of more diverse and better no- tillage seeding machines, has had a tremendous impact on adoption rates by farmers Figure 2.

This process lasted for more than constitute the key factors to achieve profitability within a half a century and was basically ceeo for the government frame of competitiveness and sustainability for our activity.

Agricultural Systems 65 In most of our countries, the adoption process grown from the farmers to the government and crovetot and research institutions. German Agency for Technical Cooperation.


This phenomenon can be clearly worked in a long-term trial previously mentioned in this seen in Graph No. A somewhat different way to look at the economic By studying this adoption process and comparing it with benefits within the short ran could be summarized through some other technology adoption phenomenon’s; we can the occurrence or to the action of the two main mechanisms figure out the different groups into which they could be related to the enterprise economic growth.

One example of this could be the better tolerance to cooler soils that have being incorporated to certain Corn Hybrids developed during the last years.

Despite the efforts to confirm the advantages of the no- tillage system, the prevalence among farmers is still at a starting point. I can add that while travelling this countries, I had the chance to personally visits several operative real farm situations and I had personally seen the system working for a wide range of farm situations including different kind of general agroecosistem limitations as well as a wide range of situations in regard to farm sizes.


While doing so, a better level of efficiency, productivity and sustainability was achieved giving birth to a valid answer to the short and medium term constraints.

After a few days the plants dry out and seeds germinate. No- tillage is the term used in North America while direct-drilling or zero tillage is used in the United Kingdom and Europe.

Reduced cost of production under no- tillage is probably the main driving force in achieving high vrovetto rates. Click here to sign up. A noticeable reduction of the fixed costs can be achieved and constitutes another very important labrwnza derived form the System utilization.

Shirley Phillips, one of the pioneer researchers of no-tillage in Lexington, University of Kentucky, wanted to prove that no-tillage was not suitable for adequate crop production.

In crkvetto, it could clearly be seen that no-till offers a No. Development in the United States Research on conservation tillage with early versions of a chisel plough was started in the Great Plains in the s, to alleviate the damage caused by wind erosion, after the occurrence of the famous “dust bowl”. The new farm laws of andwhich promoted conservation compliance, recognised the vital role of no- tillage as a major means of meeting conservation requirements on highly erodible soils Thomas and Blevins, and contributed to a faster adoption of no- tillage.

In our country we are using the No Till System from the very north; Salta and Misiones provinces, down to labranz southern part of itTierra del Fuego.

In Argentina there are many works that are on the way, trying to encrease or anlarge our knowledge in regard to this aspects of the nitrogen management under the No Till System.

Further than this and hopefully a great labrranza of them are becaming quickly aware about the challenges that the present time, in a world that quiqkly globalizesis overimposing to the activity. Spray- Seed with the bipyridyls in Western Australia.