Title: Workgroup Agrotechnology Results of the questionnaires Peter von Fragstein und Niemsdorff University
1Workgroup Agro-technology Results of the
questionnaires Peter von Fragstein und
Niemsdorff University of Kassel
2Questions of the survey
- Important crops
- Legumes
- Green manures
- Intercrops
- Field vegetables
- Cultivars
- Crop rotations
- Nutrient managment
- Ecological infrastructure
- Soil protection
- Tools for
- Soil tillage
- Seeding planting
- Harvesting
- Post harvest
- Research topics
3Most import crops
Counts shares of crop categories N 154
4Questions of the survey
5Most important crops
8 of 15 species are mentioned 88 of 100
8 of 14 are mentioned 83 of 100
6Most important crops
8 of 15 species are mentioned 88 of 100
8 of 14 are mentioned 83 of 100
7Rotational management
(EC Decl. 2092/91 2.1. The fertility and the
biological activity of the soil must be
maintained or increased, in the first instance,
by (a) cultivation of legumes, green manures
or deep-rooting plants in an appropriate
multi-annual rotation programme...).
8Frequency of duration in organic crop rotations
of the partner countries (N 93)
9Frequency of share of non-legumes in organic
crop rotations of the partner countries
10Example for a vegetable oriented rotation
11Example for a field crop rotation
12Structure in organic vegetable crop rotations of
the partner countries (N 15)
L Legumes V Vegetables AC Arable crops
13Frequency of rotations of different length in
all partner countries
endangered by pressure of pathogens
14Rotational management
Critical points
- Loss of soil fertility building components and N
multiplying effect of rotations More need for
nutrient import through purchased manure,
composts or even processed slaughterhouse waste
material - (How organic is such a system?)
- 20 of 93 ( 22 ) examples free of legumes
- Rotations of 2 or 3 years appropriate to the
definition of an multi-annual rotational
programme? (Expected accumulation of soil borne
diseases, increase of incompatabilities, loss in
biodiversity) - 21 of 93 ( 23 ) shorter than 4 years
15Nutrient management
16Nutrient management
17Nutrient management
Comment23 different brand names out of 30
replies from 14 partner countries Nutrient
supply throughrotational management and
manure/compost applicationNeed for continuous
soil analyses (frequency debatable)
Incomplete Insufficient basis !!!
Export loss of nutrients more in focusN / P /
K / Ca / (Mg)
Replace extracted nutrients in time with regard
to slow release fertilizers in OA
18Ecological Infrastructure
- 2 of 14 replies precise figures (4 to 20 )
- 12 of 14 replies under discussion or not answered
- Rural development
- Landscape management
- Agro-tourisme
19Soil protection through cover crops
50 64 57 86
20Soil protection through undersowing
12 21 07 79
21Soil protection through mulching
43 71 64 21
22Machines for soil tillage in organic farms of
the partner countries
replies
23Essence of the survey
- Rotational management has to be reassessed in
many cases in order to meet the requirements of
good organic practice (and the guidelines of EC
Decl. 2092/91) - Number of years, share of legumes as main cover
crops, distribution of legumes within the course - Nutrient supply through purchased fertilizers
- More focus on extracted nutrients not replaced
by on-farm nutrient sources - Machines in use
- The level of mechanisation within the New Member
Countries can be expected to approach the levels
of Old Member Countries in a reasonable time
24Essence of the survey
- Rotational management have to be reassessed in
many cases in order to meet the requirements of
good organic practice (and the guidelines of EC
Decl. 2092/91) - Number of years, share of legumes as main cover
crops, distribution of legumes within the course - Nutrient supply through purchased fertilizers
- More focus on extracted nutrients not replaced
by on-farm nutrient sources - Machines in use
- The level of mechanisation within the New Member
Countries can be expected to approach the levels
of Old Member Countriesin a reasonable time
25Essence of the survey
- Rotational management have to be reassessed in
many cases in order to meet the requirements of
good organic practice (and the guidelines of EC
Decl. 2092/91) - Number of years, share of legumes as main cover
crops, distribution of legumes within the course - Nutrient supply through purchased fertilizers
- More focus on extracted nutrients not replaced
by on-farm nutrient sources - Machines in use
- The level of mechanisation within the New Member
Countries can be expected to approach the levels
of Old Member Countriesin a reasonable time
26Essence of the survey
- Ecological infrastructure
- Link between agricultural practice and nature
conservation has to be sharpened
27Thank you
for
your interest