Special compound microbial fertilizer for corn top dressing
A technology of compound microorganisms and microbial strains is applied in the field of compound microbial fertilizers for corn topdressing, which can solve the problems of insignificant increase in yield, increase in pesticide residues, and increase in soil PH value, and achieve a significant synergistic effect and a delayed activation state. The effect of nutrients and activation of phosphorus and potassium elements
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Embodiment 1
[0034] 1. Strain screening
[0035] A wheat rhizosphere soil sample was taken, and an autonomous nitrogen-fixing bacterium, Bacillus megaterium C 2 ( Bacillus megaterium C 2 ), the formula of Ashubei medium (nitrogen-free) is: glucose 10.0g, K 2 HPO 4 ·3H 2 O 0.5 g, NaCl 0.2 g, CaCO 3 1.0g, MgSO 4 ·7H 2 O0.2 g, agar 17.0 g, pH 7.0, dilute to 1 L with deionized water.
[0036] Take the wheat rhizosphere soil sample, and screen out a high-efficiency potassium-dissolving bacterial strain jelly sample through the primary screening of the size of the potassium-dissolving transparent circle produced on the medium containing potassium ore and the re-screening of the size of the potassium-decomposing ability of the liquid shake flask fermentation Bacillus XK ( Paenibacillus mucilaginosus XK), the medium containing potassium ore is: sucrose 10.0g, MgSO 4 7H 2 O0.5g, (NH 4 ) 2 SO 4 0.2g, NaCl0.1g, CaCO 3 0.1g, potassium feldspar powder 5.0g, agar 20.0g, distilled wat...
Embodiment 2
[0047] 1. Strain screening
[0048] A wheat rhizosphere soil sample was taken, and an autonomous nitrogen-fixing bacterium, Bacillus megaterium C 2 ( Bacillus megaterium C 2 ), the formula of Ashubei medium (nitrogen-free) is: glucose 10.0 g, K 2 HPO 4 ·3H 2 O 0.5 g, NaCl 0.2 g, CaCO 3 1.0g, MgSO 4 ·7H 2 O0.2 g, 17.0 g agar, pH 7.0, dilute to 1 L with deionized water.
[0049] Take the wheat rhizosphere soil sample, and screen out a high-efficiency potassium-dissolving bacterial strain jelly sample through the primary screening of the size of the potassium-dissolving transparent circle produced on the medium containing potassium ore and the re-screening of the size of the potassium-decomposing ability of the liquid shake flask fermentation Bacillus XK ( Paenibacillus mucilaginosus XK), the medium containing potassium ore is: sucrose 10.0g, MgSO 4 7H 2 O0.5g, (NH 4 ) 2 SO 4 0.2g, NaCl 0.1g, CaCO 3 0.1g, potassium feldspar powder 5.0g, agar 20.0g, distilled w...
Embodiment 3
[0060] 1. Strain screening
[0061] A wheat rhizosphere soil sample was taken, and an autonomous nitrogen-fixing bacterium, Bacillus megaterium C 2 ( Bacillus megaterium C 2 ), the formula of Ashubei medium (nitrogen-free) is: glucose 10.0 g, K 2 HPO 4 ·3H 2 O 0.5 g, NaCl 0.2 g, CaCO 3 1.0g, MgSO 4 ·7H 2 O0.2 g, 17.0 g agar, pH 7.0, dilute to 1 L with deionized water.
[0062] Take the wheat rhizosphere soil sample, and screen out a high-efficiency potassium-dissolving bacterial strain jelly sample through the primary screening of the size of the potassium-dissolving transparent circle produced on the medium containing potassium ore and the re-screening of the size of the potassium-decomposing ability of the liquid shake flask fermentation Bacillus XK ( Paenibacillus mucilaginosus XK), the culture medium containing potassium ore is: sucrose 10.0g, MgSO 4 7H 2 O0.5g, (NH 4 ) 2 SO 40.2g, NaCl0.1g, CaCO 3 0.1g, potassium feldspar powder 5.0g, agar 20.0g, distil...
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