I am not in authority to say something on agriculture, however, here's the research I just found:

"Title Growing high yielding cereal crops - What has the agronomist and the farmer learned?
Description Research Update - Irrigation - September 2003
Authors Rob Fisher, Senior Agronomist, Department of Primary Industries
Kerang, VIC, Ph: 03 5452 1266, rob.fisher@dpi.vic.gov.au
Ross Heywood, Farmer, Congupna, VIC
Presented Deniliquin, NSW

Take home messages
Get the layout, rotation and weed control right
Use the correct variety
Have a full moisture profile before sowing
At least one top dressing for Nitrogen
Don't skimp on Phosphorus, have around 40 units in the "bank"
Have between 120-200 plants/sq.m depending on sowing date
Aim at 800 shoots/sq.m with 600 as a minimum at Z30
Aim at 600 heads/sq.m
Irrigate when the crop requires it, with consideration of growth stages.
It is one thing to try and reach high yields (7 tonnes plus) in plot trials, it is another to do it on farm. Over the last few years in Northern Victoria farmers have been unable to reach high yields in any consistent manner.

The following is a joint effort between Department of Primary Industries Agronomists and The Victorian Irrigated Cropping Council to try and determine the reasons.

This paper examines both the full bay trials at an irrigated heavy clay site near Kerang, and a VICC members (Ross Heywood) attempt to achieve this in the paddock. The highest yield for the Kerang trial was 7.3t/ha whilst the Heywood yield was 8.7 t/ha

The Basics
One thing that has been seen consistently over the last few years is that unless the agronomic basics are correct, high yields are impossible.

Firstly the irrigation layout must be good. Usually this means slopes of 1:1500 or steeper are required. Certainly the crop needs to be able to be drained within 15 hours of an irrigation (Wheat Check Recommendations).

Crops can be grown on heavy soils but Gypsum and stubble retention should be considered. These practices will improve soil structure. However a word of caution, do not expect responses in the short term and be wary of just using the organic carbon or the Calcium/Magnesium ratio as your measures.

Good rotational practices and therefore lack of root diseases need to be the norm, not the exception.

A major reason for failure is lack of weed control. While tillage is a useful tool on some soil types, correct rotational use of herbicides can be of use. With either method, the key is to have as little competition as possible for the crop in its early stages."

This is taken directly from the site. The author and the website are listed. Please check.

http://www.grdc.com.au/growers/res_upd/irrigation/i03/high_yielding_cere...

Dear Kate,

I think the information you provided to the village is very helpful. As what we have discussed together with Kimsorn previously, the mode of making this high-value crop cultivation will be done using organic matter.
If you can find or give us information about organic farming, it will help us a lot.

Best regards,

Junjun

Hello there,
Again, I can not give professional advise about growing high yield crops but this web site (link below) can offer some useful advise regarding farming and environmental issues. The link below takes you directly to a page that gives a good overview of organic farming methods which could be useful for training.

http://www.defra.gov.uk/farm/organic/systems/method.htm

Best Wishes,
Rachel

Dear Rachel

Thank you so much for your text and attachment very importent document. I will print and translate for community member today. I would like to inform to all nieghbors of Moung Russey that, Dr. Larry is arrived in Moung Russey from United State on 2th August 2007. He is with his daughter 19 year old, and he brough two new laptop for youth group with complete lesson of English language too.
He will meet with woman affair, chief of commune and woman suffer from Pol Pot regime provide English lesson to group of youth and review of Business plan. We hope to send you all with picture soon.

Best Regards

Kimsorn Sa
LR

Dear All friends of Moung Russey

As in my letter post on the web explored about the traveling of Dr. Larry and his daughter to Cambodia. During three day staying in Moung Russey and Battambang province he brough 2 new laptop that donated by his Aunt is 93 years old for youth learning. He working hard in teaching to youth group about English and facilitate the group to develop business plan for Ecotourism here. He nad his daughter came to discuss with chief of commune and woman representative, visit community too. You can find all activity picture I post in village photo. I would invite you all to come and talk about how we develop ecotourism properly

I hope to see you all soon

Best regards

Kimsorn Sa
Moung Russey LR
P.O. Box 296 Battambang city, Cambodia
Tel: 855 12 53 05 48
E-mail: 012530548@mobitel.com.kh, kimsorn_sa@yahoo.com

Dear Kimsorn,

I am very happy that Dr. Larry took some time off with your community and donated a laptop courtesy of his aunt. Those contributions will definitely boost the village more and will enhance your communication as well as information background.
We hope this is a good start for the village of Moung Russey!

Best regards,

Junjun

Dear Junjun and Nieghbor

Thank you Junjun for your coming back with ideal of problem solution. I hope other neighbors will continue to talk and help me in preparing session plan for young farmer by providing agriculture project. Please kindly suggest us how to be good start for project and who we can find source and experiences?

I hope to hear from you soon

Best regards

Kimsorn Sa
Moung Russey LR
and Coordinator of CYDC
P.O. Box 296 Battambang city, Cambodia
Tel: 855 12 530548
E-mail: kimsorn_sa@yahoo.com, 012530548@mobitel.com.kh

Thank you for work everyone. I will soon come back to see what to do for the task.

Dear all friends

I feel you left from Moung Russey issue so long time, I would like to invite all of you come back and help the community to make fund raising for training center developing for youth training and technical training on high yield production.

I used to got your much help before and now please continue with our update information here.

I hope to hear from you soon

Best regards,

Sa Kimsorn

Moung Russey LR
P.O. Box 296 Battambang city,Cambodia
Tel: 855 12 530548
e-Mail: 012530548@mobitel.com.kh, kimsorn_sa@yahoo.com

The key to growing high yield crops is healthy soil. Use organic, no-till methods. Do not use chemicals. Healthy soil produces healthy crops.

GARDENS/MINI-FARMS NETWORK
USA: TX, MS, FL, CA, AR, NM; Mexico, Rep. Dominicana, Côté d’Ivoire, Nigeria, Nicaragua, Honduras, Kenya, Malawi, Mozambique, Haiti, England, India, Uzbekistan
minifarms@gmail.com
Workshops in organic, no-till, permanent bed gardening, mini-farming and mini-ranching,using bucket drip irrigation, worldwide, in English & Español

Proven Practices for Profitable Gardening/Farming

These are based on the internet, US & international agriculture magazines, experiences teaching agriculture in many countries, research data and farmer experiences in those countries and a demonstration garden. They are ecologically sustainable, environmentally responsible, socially just and economically viable. There is unlimited, documented proof. There are 90,000,000 no-till hectares worldwide.

Fukaoka Farm, Japan, has been no-till [rice, small grains, vegetables] for 70 years. At the time of my visits, an Indian farmer has been no-till [vegetables] for 5 years, a Malawi farmer has been no-till [vegetables] on permanent beds for 25 years and a Honduras farmer has been no-till [vegetables & fruit] on permanent beds on the contour (73° slope] for 8 years. Ruth Stout [USA] had a no-till garden for 30 years and 7,000 people visited her garden.

No technique yet devised by man has been anywhere near as effective at halting soil erosion and making food production truly sustainable as 0-tillage (Baker)

1. Restore the soil to its natural health. Contamination: inorganic pesticides, insecticides & fertilizers
2. Maintain the healthy soil: Healthy soil produces healthy crops with highest yields and prevents most disease, pest, weed and erosion problems.
3. Increase the soil’s organic matter every year.
4. Little or no external inputs [It is not necessary to buy anything, from anybody.
5. Leave crop residue on top of soil. No burning. You are burning up fertilizer. Do not plow it into the soil.
6. Plant green manure/cover crops to increase the soil organic matter. Seeds are available in every country.
7. Plant the new crop in the crop residue by opening up a row or a place for the seed.
8. Plant every field every year [no fallow land]
9. 0-tillage: no plowing, no digging, no cultivating. No hard physical labor required so children and the elderly can farm easily. After two or three years the yields can double while reducing the labor by half as compared to traditional farming. One farmer can farm ten acres alone using hand tools only [Honduras]
10. Tree crops: fruit, nuts, coffee [shade-grown], etc. Use perennial cover crops
11. Permanent paths [walking]
12. Permanent beds. They were used 2000 BC in Guatemala, Mexico and many other coun-tries. 15-25% of the land is in paths and that saves 15-25% of the seed, water and labor but yields will be higher. Hand tools: machete, weed cutter, seeding hoe. Local blacksmith should make them.
13. Soil always covered. Never leave the soil bare.
14. No compost making. Use the organic matter for mulch. If there is an excess, pile it up and use later.
15. SRI - system of rice intensification
16. SRI for other crops: sugar cane, finger millet, cotton.
17. Bucket drip irrigation should be used during the dry season and in areas of low rainfall: Imported bucket drip kits are US$15. A bucket drip line can be made locally from poly tubing [US$3, Nicaragua]. One will irrigate a row of crops 33 meters long using only 20 liters of water per day. Water can be from a stream, pond or well. A drip kit returns $20 per month to the farmer [FAO study].

Ken Hargesheimer minifarms@gmail.com

When Soil is Plowed
Dr. Elaine Ingham, describes an undisturbed grassland—where a wide diversity of plants grow, their roots mingling with a wide diversity of soil organisms—and how it changes when it is plowed.
A typical teaspoon of native grassland soil contains between 600 million and 800 million individual bacteria that are members of perhaps 10,000 species. Several miles of fungi are in that teaspoon of soil, as well as 10,000 individual protozoa. There are 20 to 30 beneficial nematodes from as many as 100 species. Root-feeding nematodes are quite scarce in truly healthy soils. They are present, but in numbers so low that it is rare to find them.
After only one plowing, a few species of bacteria and fungi disappear because the food they need is no longer put back in the system. But for the most part, all the suppressive organisms, all the nutrient cyclers, all the decomposers, all the soil organisms that rebuild good soil structure are still present and trying to do their jobs.
But tillage continues to deplete soil organic matter and kill fungi. The larger predators are crushed, their homes destroyed. The bacteria go through a bloom and blow off huge amounts of that savings-account organic matter. With continued tillage, the "policemen" (organisms) that compete with and inhibit disease are lost. The "architects" that build soil aggregates are lost. So are the "engineers"—the larger organisms that design and form the larger pores in soil. The predators that keep bacteria, fungi, and root-feeding organisms in check are lost. Disease suppression declines, soil structure erodes, and water infiltration decreases because mineral crusts form. Dr. Elaine Ingham, BioCycle, December 1998. (From ATTRA News, July 06)

This works. Build a demonstation bed and prove it to everybody. I am ready to help.

Ken Hargesheimer

Dear Kimsorn,

Ken's post is very helpful to your community. We have already made some progress in high-value crops production and this suggestion will further boost your knowledge. :-)

Best regards,

Junjun

Dear Ken and Junjun

Thank you so much for your keep in touch with all information, now I working closely with youth group and women household. I sure through your effort will main feed to community and our work here. I wish to hear more from our friencs on working process, I would like you all support me on how to make smoothly on project development.

best regards,

Kimsorn Sa

Dear All Nieghbor
I would like to thank for Ken and Junjun to still active on Moung Russey. Now the youth agriculture group is forming and facilitated in 3 villages in Moung Russey, they are preparing their plan of need areas for finding support.

I would like you share some ideas on this process because our team is working in volunteer.

Best regards,

Kimsorn

The below is quot from ArtVenture sent to me and I wish all niebors who can help me in complete the proposal form please give me the e-mail address I will sent you.

Kimsorn

Dear Sa Kimsorn

Happy New Year.

Thank you for returning the Project Introduction Form. I have gone through it and think we may be able to help CYDC with funding (I must stress that our Board reserves the right to partially fund projects). In this regard, I have attached our Grant Request Application Form for you to complete and return to me.

Once I have the completed application form I will then prepare a detailed report, based on the information provided, and present it to our Board for funding consideration.

I look forward to hearing from you soon.

Kind regards
Toni

________________________________

From: Kimsorn Sa [mailto:cydc.org_kh@yahoo.com]
Sent: Wed 26/12/2007 14:02
To: O'Brien Toni - ArtVenture
Cc: 012530548@mobitel.com.kh
Subject: CYDC completed form

Dear Toni O'brien

I'm sorry to delay in responding to your e-mail sent to me for completing form on CYDC information, because I'm out office. I would like to sent you with the completing form about CYDC, please kindly find in attachment herewith. Please don't he sitate to ask me for any information you need from CYDC.

I hope to hear back form you soon, and waiting to make coperation with Artventure in future.

Thank you for your take attention and assistance

Best regards,

Sa Kimsorn
CYDC direstor
P.O. Box 296 Battambang city, Cambodi
Tel: 855 12 530548
E-mail: cydc.org_kh@yahoo.com 012530548@mobitel.com.kh

Dear Ken and all nieghbors

I would like to inform that Mr. Ken sent the many kind of seed for organic farm pilot with youth now arrived on my hand today. I hope to conduct meeting with group of youth next week for explain organic and show kind of seed sent to their group.

I met Mr. Earl Bridges one friend of Mr. Ken in Phnom Pen on 26 Jan 2006 at his office NGO. He is very nice person and he introduce some friend to me and he wish to visit the target group in Moung Russey soon for meet some people and observe situation there.

I hope all other nieghbors come to help me in sharing ideas for youth group development assistant with skill towards self reliance.

Best regards,

Sa Kimsorn
LR and Director
of CYDC
P.O. Box 296 Battambang city, Cambodia
Tel: 855 12530548
E-mail: kimsorn_sa@yahoo.com, cydc.org_kh@yahoo.com