1.2 ព័ត៌មានលម្អិតពីបុគ្គលសំខាន់ៗ និងស្ថាប័នដែលចូលរួមក្នុងការវាយតម្លៃ និងចងក្រងឯកសារនៃបច្ចេកទេស

ឈ្មោះគម្រោងដែលបានចងក្រងឯកសារ/ វាយតម្លៃលើបច្ចេកទេស (បើទាក់ទង)

Book project: Making sense of research for sustainable land management (GLUES)

1.3 លក្ខខណ្ឌទាក់ទងទៅនឹងការប្រើប្រាស់ទិន្នន័យដែលបានចងក្រងតាមរយៈ វ៉ូខេត

តើពេលណាដែលទិន្នន័យបានចងក្រង (នៅទីវាល)?

23/06/2016

អ្នកចងក្រង និង(បុគ្គលសំខាន់ៗ)យល់ព្រមទទួលយកនូវលក្ខខណ្ឌនានាទាក់ទងទៅនឹងការប្រើប្រាស់ទិន្នន័យដែលបានចងក្រងតាមរយៈវ៉ូខេត:

បាទ/ចា៎

1.4 សេចក្តីប្រកាសស្តីពីចីរភាពនៃការពណ៌នាពីបច្ចេកទេស

តើបច្ចេកទេសដែលបានពណ៌នានេះមានបញ្ហាដែលផ្តោតលើការធ្លាក់ចុះគុណភាពដី, បើដូច្នេះវាមិនអាចត្រូវបានប្រកាសថាជាបច្ចេកទេសនៃការគ្រប់គ្រងប្រកបដោយចីរភាពទេ?

ទេ

2.1 ការពណ៌នាដោយសង្ខេបពីបច្ចេកទេស

និយមន័យបច្ចេកទេស:

Minimum tillage is a one-pass operation combined with sowing, using a classic Russian seeder modified for seedbed preparation and soil mixing. It can include shallow stubble cultivation after harvesting.

2.2 ការពណ៌នាលម្អិតពីបច្ចេកទេស

ការពណ៌នា:

Minimum tillage is a key element of the "adapted Soviet cropping system", which aims at more sustainable land use but based on predominantly local technologies. For successful implementation of minimum tillage, adaption of the whole cropping system is required, including crop rotation. Rotation includes a succession of cereal crops (e.g. spring wheat), legumes (peas), and oil seed crops. Stubble cultivation in autumn is best performed with the "Catros" compact disc harrow for a quick, shallow operation. Seedbed preparation is carried out using a classic Russian seeder modified with wing shares for shallow seedbed preparation including soil mixing. In general, the performance of this drill is very close to that of a cultivator.

Minimizing tillage, saves time and fuel, and also helps to reduce evaporation, as well as protecting the soil against erosion. Shallow tillage with disc harrows after harvest ensures better stubble mixing and stimulates the germination of weed seeds. The adapted seeder, SZS 2.1, works with wing shares that open the soil and place the seed. Thus traditional deep tillage operations for the preparation of the seedbed can are omitted: that helps to reduce costs. With respect to crop protection, the first and most important element is to implement a full crop rotation. To control late germinating weeds and seeds of the previous crop, a disc harrow is used for shallow cultivation – this can be supplemented by the application of a non-selective herbicide if there is germination - to avoid the risk of flowering before the hard frost sets in. Fertilization becomes more important, because of the decreased mineralization rate under minimized soil tillage, especially at the beginning of the conversion of the cropping system.

The Technology including crop rotation was tested in the field in 4 test plots with 4 repetitions at the test site in Poluyamki. Results showed that the intensity of soil tillage and seeding methods used had a great influence on crop establishment and expected yields. It was demonstrated that minimizing tillage leads to higher water use efficiency and highest yields. Positive effects were also observed regarding soil structure and soil fertility already after 3 years. Minimized soil disturbance led to higher aggregate stability, which leads to a lower risk of wind erosion, increased soil organic carbon storage and soil fertility as well as available soil water content. The adapted Soviet system is more profitable, due to higher gross margins.

The test site in Poluyamki is located in the dry steppe of the border region next to Kazakhstan, where, due to the climatic conditions, no natural afforestation occurs, and the planted windbreaks don’t grow vigorously due to the prevailing aridity. The annual precipitation is under 300 mm a year. Probably the greatest climatic influence factor is the precipitation - in terms of quantity and space/ time distribution and, due to high summer temperatures, the high rates of evapotranspiration. The total yearly precipitation rate is the primary yield-limiting factor in all steppe regions. The ratio between precipitation and evaporation is negative. In the late weeks of spring, prolonged droughts must be expected in 5-year cycles, limiting germination and crop establishment. The soils are classed among those of cool-tempered grasslands. Due to their physical and chemical characteristics, these soils (Chernozems and Kastanozems) have high agronomic potential.

2.3 ​រូបភាពនៃបច្ចេកទេស

2.5 ប្រទេស/តំបន់/ទីតាំងកន្លែង ដែលបច្ចេកទេសត្រូវបានអនុវត្ត និងបានគ្រប់ដណ្តប់ដោយការវាយតម្លៃនេះ

2.6 កាលបរិច្ឆេទនៃការអនុវត្ត

ប្រសិនបើមិនច្បាស់ឆ្នាំ សូមបញ្ជាក់កាលបរិច្ឆេទដែលប្រហាក់ប្រហែល:

• តិចជាង 10ឆ្នាំមុន (ថ្មី)

2.7 ការណែនាំពីបច្ចេកទេស

សូមបញ្ជាក់តើបច្ចេកទេសត្រូវបានណែនាំឱ្យអនុវត្តដោយរបៀបណា:

• ពេលកំពុងពិសោធន៍

មតិយោបល់ (ប្រភេទនៃគម្រោង ។ល។):

Already during the Soviet land use periode temporal,especially after the Virgin land campagne (1954-'63)efforts were made to minimize soil tillage intensity to obtain from conventional ploughing system. An important scientific thinker for this innovative farming systems was T. C. Malcev. But at this time the new approaches for minimized tillage systems were not seriously implemented in Russia. Only in the last decade a significant trend towards minimum soil tillage can be recodnized in the Russian agriculture

3.1 គោលបំណងចម្បង (១​ ឬច្រើន)​ នៃបច្ចេកទេសនេះ

• ធ្វើឱ្យប្រសើរឡើងនូវផលិតកម្ម
• កាត់បន្ថយ, បង្ការ, ស្តារឡើងវិញនូវការធ្លាក់ចុះគុណភាពដី

3.2 ប្រភេទដីប្រើប្រាស់មួយប្រភេទ (ច្រើនប្រភេទ) ដែលបានអនុវត្តបច្ចេកទេស

មតិយោបល់:

Major land use problems (compiler’s opinion): The decrease of soil organic carbon content in the soils and loss of topsoil depth has led to a decrease in soil fertility. Additionally, the negative soil water balance due to the high summer temperatures and evaporation, and the high spatial and temporal variability of precipitation, is a serious problem relating to the lack of soil water.
Major land use problems (land users’ perception): The land users who were involved in the studies and implemented the new farming practices have a similar opinion. But there are still a lot of farmers that underestimate the ecological risks of soil degradation resulting from conventional/ traditional soil management.

3.3 ព័ត៌មានបន្ថែមអំពីអ្នកប្រើប្រាស់ដី

ការផ្គត់ផ្គង់ទឹកនៅកន្លែងអនុវត្តបច្ចេកទេស:

• ទឹកភ្លៀង

ចំនួនសារដែលដាំដំណាំក្នុងមួយឆ្នាំ:

• 1

សូមបញ្ជាក់:

Longest growing period in days: 110, Longest growing period from month to month: May-October

3.4 ក្រុម SLM ដែលបច្ចេកទេសស្ថិតនៅក្នុង

• កាត់បន្ថយការរំខានដល់ដី

3.5 ការសាយភាយនៃបច្ចេកទេស

បញ្ជាក់ពីការសាយភាយនៃបច្ចេកទេស:

• ត្រូវបានផ្សព្វផ្សាយត្រឹមតំបន់មួយ

ប្រសិនបើបច្ចេកទេសត្រូវបានសាយភាយពាសពេញតំបន់ណាមួយ សូមកំណត់ទំហំផ្ទៃដីអនុវត្តន៍:

• 0.1-1 គម2

មតិយោបល់:

Total area covered by the SLM Technology is 0.13 m2.
The total investigation area of the SLM Technology “Minimum Tillage” refers to the test site areas: 1. Poluyamki, Mikhaylovskiy Rayon: 13ha ; 2. Pervomayskiy, Mamontovskiy Rayon: 10ha and 3. Komsomolskiy, Pavlovskiy Rayon: 3ha all managed by Minimum Tillage. This questionnaire is related to the test site in Poluyamki, Mikhaylovskiy Rayon

3.6 វិធានការ SLM ដែលបញ្ចូលនូវបច្ចេកទេស

មតិយោបល់:

Type of agronomic measures: better crop cover, mulching, green manure, mineral (inorganic) fertilizers, rotations / fallows, minimum tillage, non-inversion tillage

3.7 កំណត់ប្រភេទនៃការធ្លាក់ចុះគុណភាពដីសំខាន់ៗដែលបច្ចេកទេសនេះបានដោះស្រាយ

មតិយោបល់:

Main causes of degradation: soil management (Conventional (intensive) soil tillage by phloughing), crop management (annual, perennial, tree/shrub) (Bare fallow (without any vegetation cover)), wind storms / dust storms (Strong wind and storm (local name: Sukhovey) from the south-western central-Asiatic semi-desert regions cause a higher risk of wind erosion especially on traditional cropland without plant cover), droughts (The frequently occurring early-summer drought periods are particularly problematic for agricultural production)
Secondary causes of degradation: education, access to knowledge and support services (The linkages between research, education, extension services and end users need to strengthened, for better knowledge creation and transfer. Need for more efficient and qualified advisory service), Capital for investments (Lack of capital for investment in modern adapted agricultural technologies)

3.8 ការពារ កាត់បន្ថយ ឬស្តារឡើងវិញនៃការធ្លាក់ចុះគុណភាពដី

បញ្ជាក់ពីគោលដៅរបស់បច្ចេកទេស ដែលផ្តោតទៅការធ្លាក់ចុះគុណភាពដី:

• ការការពារការធ្លាក់ចុះគុណភាពដី
• ការកាត់បន្ថយការធ្លាក់ចុះគុណភាពដី

4.1 គំនូសបច្ចេកទេសនៃបច្ចេកទេសនេះ

4.2 លក្ខណៈពិសេសនៃបច្ចេកទេស/ ពណ៌នាពីគំនូរបច្ចេកទេស

Soviet Seeder SZS 2.1 with wing shares for shallow soil mixing and seed bed preparation.
Location: Poluyamki. Altai Krai
Date: 20.05.2015

Technical knowledge required for field staff / advisors: high
Technical knowledge required for land users: high
Main technical functions: improvement of topsoil structure (compaction), increase in organic matter, increase of infiltration, increase / maintain water stored in soil, sediment retention / trapping, sediment harvesting
Secondary technical functions: control of raindrop splash, control of dispersed runoff: retain / trap, control of dispersed runoff: impede / retard, control of concentrated runoff: retain / trap, control of concentrated runoff: impede / retard, improvement of surface structure (crusting, sealing), improvement of subsoil structure (hardpan), stabilisation of soil (eg by tree roots against land slides), increase in nutrient availability (supply, recycling,…), reduction in wind speed, increase of biomass (quantity)

Better crop cover
Material/ species: Crop rotation without bare fallow
Mulching
Material/ species: stubble cultivation with disc harrow or harrow weeder
Quantity/ density: 1/year
Green manure
Material/ species: pea
Mineral (inorganic) fertilizers
Material/ species: fertilization with calcium ammonium nitrate
Quantity/ density: yearly
Remarks: (100kg/ha (spring wheat and rape), 50kg (pea)
Rotations / fallows
Material/ species: wheat-pea-wheat-raps
Minimum tillage
Material/ species: Catros (disc harrow) and Seeder СЗС2.1 (wing shares)
Remarks: Catros (depth: 10 cm) after harvest (autumn) and Seeder in May)
Non-inversion tillage
Material/ species: Catros (disc harrow) and Seeder СЗС2.1 (wing shares)
Remarks: Catros (depth: 10 cm) after harvest (autumn) and Seeder in May)

4.6 សកម្មភាពថែទាំ

	សកម្មភាព	ប្រភេទវិធានការ	ពេលវេលា/ ភាពញឹកញាប់
1.	Stubble cultivation	ក្សេត្រសាស្ត្រ	september
2.	Seeding	ក្សេត្រសាស្ត្រ	late april/early may
3.	Seeding (extension)	ក្សេត្រសាស្ត្រ
4.	Pest management	ក្សេត្រសាស្ត្រ	period of vegetation
5.	Pest management (extension)	ក្សេត្រសាស្ត្រ
6.	Harvest	ក្សេត្រសាស្ត្រ	september

4.7 កំណត់ថ្លៃដើមសម្រាប់ការថែទាំ/ សកម្មភាពរបស់បច្ចេកទេស (ក្នុងរយៈពេលមួយឆ្នាំ)

	បញ្ជាក់ពីធាតុចូល	ឯកតា	បរិមាណ	ថ្លៃដើមក្នុងមួយឯកតា	ថ្លៃធាតុចូលសរុប	% នៃថ្លៃដើមដែលចំណាយដោយអ្នកប្រើប្រាស់ដី
កម្លាំងពលកម្ម	labour	ha	1,0	4,34	4,34	100,0
សម្ភារៈ	machine use	ha	1,0	37,4	37,4	100,0
សម្ភារៈ	fuel	ha	1,0	47,34	47,34	100,0
សម្ភារៈដាំដុះ	seeds	ha	1,0	25,3	25,3	100,0
ជី និងសារធាតុពុល	fertilizer	ha	1,0	30,83	30,83	100,0
ជី និងសារធាតុពុល	pesticides	ha	1,0	9,42	9,42	100,0
ថ្លៃដើមសរុបសម្រាប់ការថែទាំដំណាំតាមបច្ចេកទេស					154,63

មតិយោបល់:

The costs refers to 1ha land of the test field in Poluyamki.

4.8 កត្តាសំខាន់បំផុតដែលមានឥទ្ធិពលដល់ការចំណាយ

ពណ៌នាពីកត្តាប៉ះពាល់ចម្បងៗទៅលើថ្លៃដើម:

The highest cost factors of minimum tillage are equipment, fuel, fertilizer and seeds. Compared to the conventional deep ploughing often without fertilizer application, fertilizer and pesticides are the main additional cost factors.

5.1 អាកាសធាតុ

5.2 សណ្ឋានដី

5.3 ដី

5.4 ទឹកដែលអាចទាញមកប្រើប្រាស់បាន និងគុណភាពទឹក

5.6 លក្ខណៈនៃអ្នកប្រើប្រាស់ដីដែលអនុវត្តបច្ចេកទេស

សូមបញ្ជាក់ពីលក្ខណៈពាក់ព័ន្ធផ្សេងទៀតអំពីអ្នកប្រើប្រាស់ដី:

Land users applying the Technology are mainly Leaders / privileged
There are generally less woman than men in rural regions caused by rural-urban migration. Furthermore, jobs in the agricultural sector are not so attractive for woman.
Population density: 10-50 persons/km2
Annual population growth: negative

5.7 ទំហំផ្ទៃដីជាមធ្យមនៃដីផ្ទាល់ខ្លួន ឬជួលគេដែលបានអនុវត្ត​បច្ចេកទេស

5.8 ភាពជាម្ចាស់ដី កម្មសិទ្ធប្រើប្រាស់ដី និងកម្មសិទ្ធប្រើប្រាស់ទឹក

ភាពជាម្ចាស់ដី:

• រដ្ឋ
• ឯកជន មិនមានកម្មសិទ្ធ

កម្មសិទ្ធិប្រើប្រាស់ដី:

• ជាក្រុម (មានដែនកំណត់)
• កិច្ចសន្យាជួល

កម្មសិទ្ធប្រើប្រាស់ទឹក:

• អាស្រ័យផលសេរី (មិនមានការកំណត់)

មតិយោបល់:

state: 45%, the data refer to the Altai Krai

5.9 ការប្រើប្រាស់សេវាកម្ម និងហេដ្ឋារចនាសម្ព័ន្ធ

6.1 ផលប៉ះពាល់ក្នុងបរិវេណអនុវត្តបច្ចេកទេសដែលកើតមាន

ផលប៉ះពាល់លើសេដ្ឋកិច្ចសង្គម

ផលិតផល

ចំណូល និងថ្លៃដើម

ផលប៉ះពាល់ទៅលើសេដ្ឋកិច្ចសង្គមផ្សេងៗ

ផលប៉ះពាល់ទៅលើវប្បធម៌សង្គម

ផលប៉ះពាល់ទៅលើអេកូឡូស៊ី

វដ្តទឹក/លំហូរ

ដី

ជីវចម្រុះ៖ ដំណាំ, សត្វ

ការកាត់បន្ថយហានិភ័យនៃគ្រោះមហន្តរាយ និងគ្រោះអាកាសធាតុ

ផលប៉ះពាល់ទៅលើអេកូឡូស៊ីផ្សេងៗ

6.2 ផលប៉ះពាល់ក្រៅបរិវេណអនុវត្តបច្ចេកទេសដែលកើតមាន

6.3 ភាពប្រឈម និងភាពរួសនៃបច្ចេកទេសទៅនឹងការប្រែប្រួលអាកាសធាតុ និងគ្រោះអាកាសធាតុ/ គ្រោះមហន្តរាយ (ដែលដឹងដោយអ្នកប្រើប្រាស់ដី)

ការប្រែប្រួលអាកាសធាតុ

ការប្រែប្រួលអាកាសធាតុ

	រដូវកាល	ប្រភេទនៃការប្រែប្រួលអាកាសធាតុ/ព្រឹត្តិការណ៍	លក្ខណៈឆ្លើយតបនៃបច្ចេកទេសទៅនឹងការប្រែប្រួលអាកាសធាតុ
សីតុណ្ហភាពប្រចាំឆ្នាំ		កើនឡើង	ល្អ

គ្រោះអាកាសធាតុ (មហន្តរាយ) ​

គ្រោះមហន្តរាយធម្មជាតិ

	លក្ខណៈឆ្លើយតបនៃបច្ចេកទេសទៅនឹងការប្រែប្រួលអាកាសធាតុ
ព្យុះភ្លៀងតាមតំបន់	ល្អ
ព្យុះកំបុតត្បូងតាមតំបន់	ល្អ

គ្រោះមហន្តរាយអាកាសធាតុ

	លក្ខណៈឆ្លើយតបនៃបច្ចេកទេសទៅនឹងការប្រែប្រួលអាកាសធាតុ
រាំងស្ងួត	ល្អ

ផលវិបាកដែលទាក់ទងនឹងបរិយាកាសផ្សេងៗទៀត

ផលវិបាកដែលទាក់ទងនឹងបរិយាកាសផ្សេងៗទៀត

	លក្ខណៈឆ្លើយតបនៃបច្ចេកទេសទៅនឹងការប្រែប្រួលអាកាសធាតុ
កាត់បន្ថយពេលដាំដុះ	មិនល្អ

មតិយោបល់:

The increase of air temperature and wind lead to an increase of the evapotransporation rate and consequently, as well as rainfall decrease and droughts, to a decrease of soil water content that is one of the most important limiting factor in crop production. The minimization of soil tillage intensity helps to reduce the evapotranspiration rate and thus leads to a higher soil water content. The stubble slow down the wind, that protect the soil against erosion and reduce the evapotranspiration rate.

6.4 ការវិភាគថ្លៃដើម និងអត្ថប្រយោជន៍

តើផលចំណេញ និងថ្លៃដើមត្រូវបានប្រៀបធៀបគ្នាយ៉ាងដូចម្តេច (ទស្សនៈរបស់អ្នកប្រើប្រាស់ដី)?

តើផលចំណេញ និងការថែទាំ/ ជួសជុលត្រូវបានប្រៀបធៀបគ្នាយ៉ាងដូចម្តេច (ទស្សនៈរបស់អ្នកប្រើប្រាស់ដី)?

6.5 ការទទួលយកបច្ចេកទេស

មតិយោបល់:

100% of land user families have adopted the Technology without any external material support

The 3 farms/ sites where minimum tillage was tested were already interested in conservation technologies and were able to invest in new machinery, which is not representative of the whole Kulunda region. There is a moderate trend towards spontaneous adoption, but this trend depends on different natural and socioeconomic factors, like precipitation or the economic situation and financial power of the farmers.
There is a trend towards spontaneous adoption of the Technology, but this trend depends on different natural and socioeconomic factors like the precipitation or conditions an economic situation of the financial power of the farms. For example the drier the conditions, the more sense is to minimize the tillage. But there is a need to invest in new machinery. An advantage of the tested Adapted Soviet System in contrast to the Modern Soviet System is the less need for new machinery through the use of old Soviet machinery.

6.7 ភាពខ្លាំង/ គុណសម្បត្តិ/ ឱកាសនៃបច្ចេកទេស

ភាពខ្លាំង/ គុណសម្បត្តិ/ ឱកាស​ ទស្សនៈរបស់បុគ្គលសំខាន់ៗ
Increase of soil aggregate stability and improved soil structure thus better erosion control and protection of soil organic matter will improve soil fertility and water holding capacity
Minimization of evaporation losses through the mulch layer
Protection of soil organisms thus ensuring natural soil forming processes
Lower input costs (materials, fuel, labour, time) and quicker field operations.
A great advantage of the tested ‘minimum tillage’ in contrast to ‘no till‘ is that the former needs no new machinery because of the use and adaptation of old Soviet machinery.

6.8 ភាពខ្សោយ/ គុណវិបត្តិ/ ហានិភ័យនៃបច្ចេកទេស និងវិធីសាស្ត្រដោះស្រាយ

ភាពខ្សោយ/ គុណវិបត្តិ/ ហានិភ័យ ទស្សនៈរបស់អ្នកចងក្រងឬបុគ្គលសំខាន់ៗ	តើបច្ចេកទេសទាំងនោះបានដោះស្រាយបញ្ហាដូចម្តេច?
Need for comprehensive system knowledge and risk of significant crop losses in case of incorrect implementation	Knowledge transfer, Capacity building and extension services, State support (subsidies for new technologies)
Application of chemical herbicides leads to higher costs and possible ecological risks	Selective spraying using the “Amaspot” system that is based on infrared detection of weeds.
Higher requirements for fertilizers, especially at the beginning, due to lower mineralization rates and less nutrient availability compared to conventional cultivation	Higher fertilizer application in the first years after conversion.
Challenging straw management that leads to higher risk of fungal infestation and poorer field crop emergence	Good straw management: effective straw chopping and spreading as well as stubble cultivation for an optimal straw/ soil ratio.

7.1 វិធីសាស្ត្រ/ ប្រភពនៃព័ត៌មាន