JPS646017Y2 - - Google Patents

Info

Publication number

JPS646017Y2

JPS646017Y2 JP16318181U JP16318181U JPS646017Y2 JP S646017 Y2 JPS646017 Y2 JP S646017Y2 JP 16318181 U JP16318181 U JP 16318181U JP 16318181 U JP16318181 U JP 16318181U JP S646017 Y2 JPS646017 Y2 JP S646017Y2

Authority

JP

Japan

Prior art keywords

ground

planting

elevation control

planting device

floats

Prior art date

1981-10-29

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 230000007246 mechanism Effects 0.000 claims description 28
• 241000209094 Oryza Species 0.000 claims description 10
• 235000007164 Oryza sativa Nutrition 0.000 claims description 10
• 238000006073 displacement reaction Methods 0.000 claims description 10
• 235000009566 rice Nutrition 0.000 claims description 10
• 230000001105 regulatory effect Effects 0.000 claims description 3
• 230000008844 regulatory mechanism Effects 0.000 claims description 3
• 230000009471 action Effects 0.000 description 4
• 230000005540 biological transmission Effects 0.000 description 3
• 230000033228 biological regulation Effects 0.000 description 2
• 238000003971 tillage Methods 0.000 description 2
• 241000196324 Embryophyta Species 0.000 description 1
• 230000001174 ascending effect Effects 0.000 description 1
• 230000008859 change Effects 0.000 description 1
• 230000008878 coupling Effects 0.000 description 1
• 238000010168 coupling process Methods 0.000 description 1
• 238000005859 coupling reaction Methods 0.000 description 1
• 230000007423 decrease Effects 0.000 description 1
• 238000001514 detection method Methods 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 230000007935 neutral effect Effects 0.000 description 1