Special-purpose fertilizer for corn and application thereof
A corn-specific fertilizer and fertilizer technology, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of reproductive growth frustration, white corn seedlings, and impact on yield, etc., and achieve the effects of improving retrograde resistance, increasing yield, and increasing investment.
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Embodiment 1
[0030] Based on the effective content of nitrogen, phosphorus and potassium, the fertilizer weight composition is: N:P 2 o 5 : K 2 O: Zn=1: 0.7: 0.4: 0.08, hydrogen kun (HQ) consumption is 2.0% of N fertilizer weight and dicyandiamide (DCD) consumption is 3.0% of N fertilizer weight, unit area consumption N: 150kg hm -2 , P 2 o 5 : 105kg hm -2 , K 2 O: 60kg hm -2 , Zn is 12kg hm -2 . That is, N is 150kg hm -2 , P is 46kg hm -2 , K is 49.8kg hm -2 , Zn is 12kg hm -2. It should be noted that the above amounts are calculated by elements, and corresponding conversions are required in specific applications. In addition, according to the difference in the soil nutrient background of the cultivated land, the amount of fertilizer can fluctuate within the range of ±15%.
[0031] Among them: the fertilizer selected for N is urea, P 2 o 5 The fertilizer selected is diammonium, K 2 The fertilizer used by O is potassium sulfate, and Zn is zinc sulfate.
[0032] Applicatio...
Embodiment 2
[0034] The difference from Example 1 is that the fertilizer composition is shown in the following table:
[0035] Fertilizer ratio, N:P 2 o 5 : K 2 O:Zn=1:0.31:0.33:0.08
[0036] Table 1 Fertilizer consumption per hectare (kg / hm 2 )
[0037] Preface
[0038] Note: The source of Zn can be the tailings slag of Kazuo Molybdenum Mine in Liaoxi, Liaoning, which can save costs. The above units are K g.
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