It was researched that the numbers and biomass of soil microorganisms in different development stage of Chinese Fir plantation in Shanxia Farm of Sub-tropical Forestry Center, CAF in Fenyi Country, Jiangxi Province. T...It was researched that the numbers and biomass of soil microorganisms in different development stage of Chinese Fir plantation in Shanxia Farm of Sub-tropical Forestry Center, CAF in Fenyi Country, Jiangxi Province. The trend of the numbers and biomass of soil microorganism, the numbers of bacteria and the content of available N, P was decreased from juvenile to medium plantation, and increased from medium to mature plantation. But it was not found the trend from the numbers of fungi and actinomycetes, the content of available K,total N, P, K, in different development stage of Chinese Fir plantation.展开更多
Microorganism impacts greatly on the translation and the availability of phosphorus in the soil. Inoculating the medium with Ca3 (PO4)2 and lecithin as the only P source respectively with the strains of bacterial fe...Microorganism impacts greatly on the translation and the availability of phosphorus in the soil. Inoculating the medium with Ca3 (PO4)2 and lecithin as the only P source respectively with the strains of bacterial fertilizer in our laboratory, 9 strains of phosphorus-dissolving bacteria were selected. The contents of available phosphorus increased from 33.082 mg\5kg\+\{-1\} to 344.820 mg\5kg\+\{-1\} in the medium with Ca3(PO4)2 and increased from 0.870 mg\5kg\+\{-1\} to 43.123 mg\5kg\+\{-1\} in the medium with lecithin. The pH of all cultures of the medium with Ca3(PO4)2 were lower than that of CK. While in cultures of the medium with lecithin, the pH values of 7 strain cultures were lower than that of CK and the other 2 strains were higher. The pH varied in 5.0~7.5.展开更多
The effects of different kinds of bacterial fertilizer on the growth of pinus massoniana were studied.The results showed that as a fast growing tree species,1 year old P.massoniana could growth faster by using bacteri...The effects of different kinds of bacterial fertilizer on the growth of pinus massoniana were studied.The results showed that as a fast growing tree species,1 year old P.massoniana could growth faster by using bacterial fertilizer,especially by using Bacillus and Pseudomonas. Ten months after fertilizing Bacillus and Pseudomonas, the average increment of height reached 30.34% and 21.29%,the average basal area increased by 36.40%and 22.56%,and the crown breadth increased by 46.21%and 31.84% respctively.展开更多
文摘It was researched that the numbers and biomass of soil microorganisms in different development stage of Chinese Fir plantation in Shanxia Farm of Sub-tropical Forestry Center, CAF in Fenyi Country, Jiangxi Province. The trend of the numbers and biomass of soil microorganism, the numbers of bacteria and the content of available N, P was decreased from juvenile to medium plantation, and increased from medium to mature plantation. But it was not found the trend from the numbers of fungi and actinomycetes, the content of available K,total N, P, K, in different development stage of Chinese Fir plantation.
文摘Microorganism impacts greatly on the translation and the availability of phosphorus in the soil. Inoculating the medium with Ca3 (PO4)2 and lecithin as the only P source respectively with the strains of bacterial fertilizer in our laboratory, 9 strains of phosphorus-dissolving bacteria were selected. The contents of available phosphorus increased from 33.082 mg\5kg\+\{-1\} to 344.820 mg\5kg\+\{-1\} in the medium with Ca3(PO4)2 and increased from 0.870 mg\5kg\+\{-1\} to 43.123 mg\5kg\+\{-1\} in the medium with lecithin. The pH of all cultures of the medium with Ca3(PO4)2 were lower than that of CK. While in cultures of the medium with lecithin, the pH values of 7 strain cultures were lower than that of CK and the other 2 strains were higher. The pH varied in 5.0~7.5.
文摘The effects of different kinds of bacterial fertilizer on the growth of pinus massoniana were studied.The results showed that as a fast growing tree species,1 year old P.massoniana could growth faster by using bacterial fertilizer,especially by using Bacillus and Pseudomonas. Ten months after fertilizing Bacillus and Pseudomonas, the average increment of height reached 30.34% and 21.29%,the average basal area increased by 36.40%and 22.56%,and the crown breadth increased by 46.21%and 31.84% respctively.