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Organic matter and nitrogen returns to soil by different cropping systems rotations on a vertisol in the Indian semi-arid tropics

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Relation http://oar.icrisat.org/652/
 
Title Organic matter and nitrogen returns to soil by different cropping systems rotations on a vertisol in the Indian semi-arid tropics
 
Creator Abdurahman, M D S
 
Subject Soil Science
 
Description Organic matter plays an important role in soil management and crop production:
It is the natural source of mineral N. The results of the experiments carried out show the
importance of quantifying the organic matter inputs to the soil by different cropping
systems rotations. The results show that in the absence of N fertilizers, S/PP S/PP can
deposit in the soil a substantial (2395 kg ha-') amount of root organic matter on the other
hand the non-leguminous system StSAF S+SAF contribute 1652 kg ha1 of root organic
matter to the soil. But if the crops are given adequate N fertilizer the results show that
almost similar mounts of root can be deposited even by the non-leguminous system. The
sane findings were observed in the case of N content of the roots deposited to the soil by
the different crops in the different systems. Legumes can also contribute to the organic
matter of the soil by way of fallen dry leaves, which if incorporated into the soil
mineralize and conitributes ubstantial amounts of N.
 
Date 1996
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/652/1/62043.pdf
Abdurahman, M D S (1996) Organic matter and nitrogen returns to soil by different cropping systems rotations on a vertisol in the Indian semi-arid tropics. PhD thesis, Acharya N G Ranga Agricultural University.