Response of Phosphorus Uptake and Accumulation of Spring Maize and Soil Phosphorus Pool to Different Phos-phorus Activator
Under the light sierozem soil condition, a study was made with pot experiments on the effects of different phos-phorus activator on the shoot and root biomass of spring maize, the phosphorus uptake and accumulation and the dynamic contents of soil total phosphorus and available phosphorus. The results showed that the application of organic-inorganic com-pound fertilizer was beneficial to the growth of maize, and could significantly improve the shoot and root phosphorus uptake and accumulation compared with the monosodium glutamate fermentation liquid and commercial humic acid. The effects of different phosphorus activators on the dynamic content of the soil total phosphorus were little. However, the difference of the dynamic content of the soil available phosphorus was relatively large. The soil phosphorus release promoting effect of the monosodium glutamate fermentation liquid was greater than that of the organic-inorganic compound fertilizer, and the soil phosphorus release promoting effect of organic-inorganic compound fertilizer was greater than that of the commercial humic acid. Therefore, both monosodium glutamate fermentation liquid and organic-inorganic compound fertilizer were good phospho-rus activators, but with the monosodium glutamate fermentation liquid an attention must be paid to the reasonable application method to achieve the target effect.
Spring maizeDry biomassPhosphorus uptake and accumulationSoil total phosphorusSoil available phospho-rusPhosphorus activator
NETL
NSTL
万方数据
维普
