000			03272naa a22004217a 4500
001			G81302
003			MX-TxCIM
005			20220811215802.0
008			220811s2004 at ||||| |||| 10| 0 eng d
020			_a1 920842 21 7
040			_aMX-TxCIM
041			_aeng
072		0	_aE16
072		0	_aF01
090			_aCIS-4328
100	1		_aHossain, M.I. _93016
245	1	0	_aUse of raised beds for increasing wheat production in rice-wheat cropping systems
260			_aGosford (Australia) : _bGosford (Australia) : _c2004.
340			_aComputer File|Printed
500			_aDraft
520			_aThe combined effects of tillage options, nitrogen management and levels on wheat yield (Triticum aestivum L.) as a winter crop on raised beds has increased productivity in the temperate world but has not been investigated in lesser developed countries, like Bangladesh. Therefore, a study was conducted during 3 wheat seasons at the Regional Wheat Research Center experimental field in Rajshahi NW Bangladesh, to compare the effects of tillage options, nitrogen levels and management strategies on wheat. In a strip-split plot design, two tillage systems were tested: manually prepared, permanent bed (PB) and conventionally tilled on the flat (CTF). Within each tillage system, two nitrogen management practices were used: broadcast, (BC) and furrow placement (FP) between wheat rows. Three N levels (50, 100 and 150% of recommended N) representing 60, 120 and 180 kg N/ha were used. PB increased wheat yield by 18% when compared with CTF. Predictably, wheat yields responded to N fertilizer rates in all years over all treatments. There were no statistical differences between the two nitrogen managements in 2 out of 3 years, i.e. BC and FP. Using raised beds at 150% N rate, yield was statistically higher in all years. Using raised beds at 50% N rate, yield was statistically equal to 150% conventionally tilled in all years. The data indicate that by using raised beds compared to conventional tillage, nitrogen uptake and efficiency can be increased. The maximum N uptake by the grain and straw was recorded in PB where the highest dose of N was applied. Permanent bed tillage systems also showed substantial water saving (32%) over the CTF treatments. Thus, in warmer areas where water resources are often limited and nutrient uptake and efficiencies are low, the use of raised beds in a permanent bed cropping system would be a distinct advantage.
546			_aText in English
591			_a0503|AL-Wheat Program
650		7	_91832 _aTillage _2AGROVOC
650		7	_92912 _aNitrogen _2AGROVOC
650		7	_91310 _aWheat _2AGROVOC
650		7	_91066 _aCrop yield _2AGROVOC
650		7	_91813 _aLodging _2AGROVOC
700	1		_aMeisner, C.A. _93649
700	1		_aDuxbury, J.M. _92592
700	1		_aLauren, J.G. _928119
700	1		_aRahman, M.M. _920531
700	1		_aMeer, M.M. _928426
700	1		_aRashid, M.H. _91451
711	2		_94324 _aInternational Crop Science Congress _n(4th : _dSeptember 26 – October 1, 2004 : _cBrisbane, Australia)
773	0		_dGosford (Australia) : The Regional Institute, 2004. _tNew directions for a diverse planet: Proceedings of the 4th International Crop Science Congress _wG81984 _z1 920842 20 9
942			_cBP _2ddc _n0
999			_c45725 _d45725