A fertilization method for improving lodging resistance and grain quality of maize in cold regions
A fertilization method and anti-lodging technology, which can be used in fertilization methods, calcareous fertilizers, fertilization devices, etc., can solve problems such as unfavorable regional agricultural economy and sustainable development of corn industry, increased lodging risk of densely planted corn groups, and unbalanced soil nutrient structure. , to optimize the rhizosphere microbial community structure, reduce the risk of lodging, and promote the effect of absorption and transformation
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Embodiment 1
[0065] A fertilization method for improving the lodging resistance and grain quality of maize in cold regions. The semi-arid maize ecological zone in the west of the Songnen Plain is selected, and sandy loam fields with shallow plowing layers, poor soil foundation fertility or general water and fertilizer retention performance are selected. Follow the steps below:
[0066] a. After the completion of the corn site preparation, a 65cm ridge was erected, and the biochar particles (270kg / hm 2 ) and chemical fertilizers (containing N≥46% quick-acting urea 60kg / hm 2 , containing N≥46% slow-release urea 90kg / hm 2 , containing N≥18%, P 2 o 5 ≥46% diammonium phosphate 165kg / hm 2 , including K 2 O≥50% potassium sulfate 90kg / hm 2 ), 20cm below the sowing row.
[0067] b. Before sowing, seed fertilizer (diammonium phosphate 45kg / hm 2 , calcium magnesium zinc fertilizer containing CaO≥16%, MgO≥6%, Zn≥0.2% 225kg / hm 2 ) after mixing evenly, at the time of sowing, apply the seed fert...
Embodiment 2
[0072] A fertilization method for improving the lodging resistance and grain quality of corn in cold regions. The semi-humid corn planting ecological zone in the eastern Sanjiang Plain is selected, and the plow layer is deep, the soil foundation is relatively fertile, or the silt loam and clay loam fields are specifically followed by the following steps conduct:
[0073] a. After the completion of corn site preparation, a 130cm ridge was erected, and biochar particles (195kg / hm 2 ) and chemical fertilizers (containing N ≥ 46% quick-acting urea 45kg / hm 2 , containing N≥46% slow-release urea 60kg / hm 2 , containing N≥18%, P 2 o 5 ≥46% diammonium phosphate 150kg / hm 2 , including K 2 O≥50% potassium sulfate 75kg / hm 2 ), 25cm below the sowing row.
[0074] b. Before sowing, seed fertilizer (diammonium phosphate 30kg / hm 2 , calcium magnesium zinc fertilizer containing CaO≥16%, MgO≥6%, Zn≥0.2% 120kg / hm 2 ) after mixing evenly, when sowing, apply the seed fertilizer at the hor...
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