Autumn plowing isn't enough; simply tilling isn't sufficient. Rice straw is a mass of carbon, and if there isn't enough nitrogen from the microorganisms that decompose it, spring rot will occur.

Chicken manure is a cheap and abundant way to supplement that nitrogen. This video explains how many kilograms to add per 10 ares, what happens if you add too much, why the price of chicken manure can vary tenfold, and three ways to obtain it cheaply.

#AutumnPlowing #ChickenMunch #IncorporatingRiceStraw #SpringRootPrevention

[Also Recommended]
▼ Autumn Plowing Timing, Depth, and Tractor Settings by Horsepower
秋おこしの正解は「地温15度」と「乾燥」！効果を最大化する深さ・速度・石灰窒素の使い方
▼ Is Autumn Plowing Really Necessary? Reasons why both the "do it" and "don't do it" camps are right
秋起こしは本当に必要？「やる派」と「やらない派」の決定的な違い

【Timestamps】
▼ Video Content
00:00 Opening
01:31 【Chapter 1】Why does it reappear even after proper plowing in autumn?
03:18 【Chapter 2】The key to dissolving straw is "3 kg of nitrogen." Three reasons why chicken manure is chosen.
06:38 【Chapter 3】Five pitfalls of chicken manure. How many kg is "too much"?
11:23 【Chapter 4】The same chicken manure can cost 10 times more. Three ways to get it cheaply.
14:45 Summary

【Video Details】
This video explains the reasons and precautions for adding chicken manure to autumn plowing after rice harvesting, based on research materials from Yamaguchi, Ibaraki, and Niigata prefectures, and research results from the National Agriculture and Food Research Organization (NARO). Chapter 1 addresses the reason why rice straw rots again in the spring even after being tilled in the fall: "nitrogen deficiency by microorganisms." Rice straw is a mass of carbon, and the microorganisms that decompose it need nitrogen to build their bodies, so tilling alone is not enough to promote decomposition. Chapter 2 discusses the amount of nitrogen needed. 3-4 kg per 10 ares is a guideline, and 20 kg of calcium cyanamide is a standard, but chicken manure with a C/N ratio of 10 or less can perform the same role at a lower cost. 100-150 kg of fermented chicken manure is a guideline. However, the effectiveness of nitrogen varies by 10 times depending on the brand, so we will introduce a calculation formula to estimate the amount needed from the total nitrogen indicated on the bag: "N% × N% ÷ 10". Chapter 3 covers five pitfalls: variations in composition, the fact that nitrogen from the fall does not become base fertilizer for the following spring (rice uses less than 5%), rot and lodging due to over-fertilization, decreased taste, accumulation of phosphorus, potassium, and calcium, and the solution of "fertilization design that subtracts the amount added". Chapter 4 discusses price. The powdered chicken manure at home improvement stores is cheap, starting at around 100 yen for 15 kg; the real cost is the effort of opening the bags. I'll introduce three routes: bulk/flexible containers, direct pickup from poultry farms, and the Ministry of Agriculture, Forestry and Fisheries' matching site.

[Editor's Note]
While researching chicken manure, the most surprising figure was that "less than 5 percent of the nitrogen added in the fall is used by the rice plants." Autumn chicken manure isn't fertilizer for next year; it's nitrogen stored in the soil by dissolving the straw. Misunderstanding this will throw off your spring fertilization plan.

Another thing that made me think was the accumulation of phosphorus and potassium. It's not the chicken manure itself that's bad, but the problem with applying textbook fertilizers without subtracting the amount added. I've come to realize again the importance of having your own rice paddy plan.

Because it's an inexpensive material, the results vary greatly depending on how you use it. I hope this video will be helpful in planning your autumn plowing this year.

This channel features Tome-san, who is studying rice farming, explaining his research in an easy-to-understand way. Farmers and anyone interested in agriculture, please subscribe to our channel and check it out!

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#ricefarming #ricecultivation #agriculture #autumnplowing #autumntillage #chickenmanure #ricestrawinplowing #armpitcontrol #soilpreparation #PR