[Scientific foundations for nutrtion of fodder crops and methods for increasing of their capacity on irrigated lands of south and south-east of Kazakhstan: Diss., Dr.Sc. (Agr.)]
1999
Orazbayev, S.A. (The Kazakh State agrarian university (Kazakhstan))
Nutritive requirement of fodder crops' rotation for high yield production is defined. It is found that limiting factor of yield for fodder beet and Sudan grass is nitrogen, for alfafa - phosphorus and potassium. On meadow chestnut soils high yields of fodder crops are provided by application of nitrogen and phosphorus fertilizers at a rate N(270)P(50)K(90) for fodder beet, of phosphorus and nitrogen - N(180)P(50)K(90) for silage corn, of nitrogen - N(180) - for Sudan grass, of phosphorus and potassium - N(30)P(220)K(90) - for barley+alfalfa. On light sierozems a positive balance is marked with maximum application of N(570)P(540)K(620) per rotation with application of 180 kg/ha and 270 kg/ga of phosphorus and K(200). Maximum conventionally net profit is earned with application of N(60)P(270)K(200) for alfalfa and N(120)P(120)K(100) for fodder crop.
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