Vol. 1 (4) : July-August 2010 issue
Green Farming Vol. 1 (4) : 390-392 (July-August, 2010) (New Series)
Placement behaviour of delinted cotton seed in pneumatic planting
P.S. MAHALEa1*, B.P. MISHRAb2, G. MAJUMDARa3, A.R. RAJUa4 and A.K. KAMBLEc5
aDivision of Crop Production, Central Institute for Cotton Research, Shankarnagar, Nagpur - 444 010 (M.S.)
bFaculty of Agricultural Engineering, Indira Gandhi Krishi Vishwavidyalaya, Zora, Raipur - 492 012 (C.G.)
cFaculty of Agricultural Engg., Dr. Panjabrao Deshmukh Vidyapeeth, Krishinagar, Akola - 444 104 (M.S.)
Designation : 1Res. Associate, 2Head (FMP, Raipur), 3Sr. Scientist (C.I.C.R. Nagpur), 4Senior Scientist, 5Asstt. Professor
Subject : Agronomy and Crop Production
Paper No. :
Total Pages : 3
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Revised accepted :
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Citation :
P.S. MAHALE, B.P. MISHRA, G. MAJUMDAR, A.R. RAJU and A.K. KAMBLE. 2010. Placement behaviour of delinted cotton seed in pneumatic planting. Green Farming Vol. 1 (4) : 390-392 ; July-August, 2010 (New Series)
ABSTRACT
Pneumatic planting seed metering concept is based on the suction pressure developed in the seed metering system. The laboratory study on the suction pressure in the pneumatic disc for holding cotton seed (Gossypium hirsutum L.) under positive pressure over the seed metering orifices were carried out. The suction pressure of 1800 Nm-2 held the desired number two cotton seed per hill through metering orifices with no skip (0 %), double (93 %) and multiple (7 %). The pneumatic disc with positive pressure hole of size 12 mm gave maximum evenness (98 %), percentage frequency (97 %) for hill spacing with standard deviation (0.416) and coefficient of variation (1.56 %). The seed metering disc with a size of seed metering orifice of 2.5 mm gave maximum percentage frequency of 93 % for the desired number of cotton seed. The increase in suction pressure increases the number of seeds per hill.
Key words :
Delinted cotton, Gossypium hirsutum, Pneumatic planting.
