000 04003nam a22004097a 4500
001 G80069
003 MX-TxCIM
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008 121211s ||||f| 0 p|p||0|| |
040 _aMX-TxCIM
072 0 _aE16
072 0 _aF03
082 0 4 _a633.1147
_bBED
100 1 _aIsmailov, I.
_uInternational caucasian conference on cereals and food legumes. Abstracts
110 0 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT)
_9978
111 2 _cTbilisi (Georgia)
_d14-17 Jun 2004
245 0 0 _aLoss accounting in forecasting yield of cereal crops
260 _aTbilisi (Georgia)
_bCIMMYT :
_c2004
300 _ap. 423-424
340 _aPrinted
500 _aAbstract only
520 _aAgricultural production volume should correspond to the possibility of its realization, i.e. be deterrnined by demand. .{). ¿ ¿p (1), where W and S p are the production volume and demand in the planned year. The yield loss issue is a significant problem of the agrarian sector. Yield losses encompass all the technological cycle of crop production and are associated with essential damages to the producer. Therefore, in forecasting the production volume, losses should be accounted at every stage of pro- duction. The following requirements should be met in forecasting the production output: F.U=¿T.N.lj (2), Where f is the grain crop area, ha; u is yield, t/ha; t is the number of grain consumers, standard unit (su); n is the average annual rate of consumption, t/su; i is the indicator of an item of losses in the cycle "production-sale":j = 1.2. n. Grain losses may be grouped by their causes as follows: production technology violations or losses of the biological yield; imperfection of the machinery used in grain crop management; uncoordinated activities of producers and processing industries; natural losses. The planted area, given the losses, may be expressed by the following equation: Fyo =fr-1T.N.IEiu,iy,imp,ino,ic,ixp,i3,iucj (3) Where iu is the ratio accounting for biological yield losses; i y is the ratio accounting for losses at harvesting; imp is the ratio of losses at loading/ unloading, transportation and packing; i no is the ratio of the pre-processing damage; ic -the ratio of losses at drying; ixp- the ratio of product losses at storage; 13 -the ratio of a share of the given pro- duct's reserve ( i 3 > 1 ); i uc -the ratio of pro- duct losses upon utilization, i.e. Upon storage, sale, etc. As a result of the logical and theoretical analysis, it may be concluded that in forecasting cereal yields an account of product losses in all the above categories should also be made in addition to the direct consumption. Thus, the forecasted area of an agricultural crop with regard to the above- said shall be: r Fn =Fy()+¿fj (4) Where S f is the area accounting for all category yield losses. To reduce grain yield losses, the following scope of measures should be considered: .The measures directed at elimination production technology violations or biological yield losses through careful compliance with all crop management practices and dates; .Increasing production of grain crops by utilizing high-yielding varieties adapted to the environment; .Improving machinery used in grain growing; .Ensuring coordination between the producers and processing industries by elaborating and organizing effective pattems of utilizing farm machinery and technical maintenance services; .Reducing natural losses through elaboration and introduction of novel progressive storage technologies.
546 _aEnglish
591 _a0409|AGRIS 0401|AL-Wheat Program
593 _aJuan Carlos Mendieta
595 _aCPC
650 1 0 _91023
_aBiology
_gAGROVOC
650 1 7 _aCrop yield
_gAGROVOC
_2
_91066
650 1 0 _aSeed production
_91253
650 1 0 _aTechnology
_gAGROVOC
_91988
650 1 7 _aVarieties
_gAGROVOC
_2
_91303
650 1 0 _aWheat
653 0 _aCIMMYT
650 1 0 _91151
_aHybrids
_gAGROVOC
700 1 _aBedoshvili, D.
_eed.
942 _cPRO
999 _c7312
_d7312