Matters needing attention of applying pig manure to the root of growing sugar orange
The amount of fertilizer applied in different periods of sugar orange:
Base fertilizer: 10 kg chicken manure or pigeon manure or 2.5 kg peanut bran or 25 kg pig manure, add 0.35 kg calcium superphosphate, 0.25 kg potassium chloride or 0.30 kg potassium sulfate.
Pre-bud fertilizer: 0.25 kg urea, 0.25 kg calcium superphosphate, 0.20 kg potassium chloride or 0.25 kg potassium sulfate.
Stable fruit fertilizer: 0.16 kg urea, 0.20 kg superphosphate, 0.15 kg potassium chloride or 0.18 kg potassium sulfate.
Strong fruit fertilizer: 0.35 kg urea, 0.15 kg calcium superphosphate, 0.3 kg potassium chloride or 0.35 kg potassium sulfate.
It should be noted that citrus trees are moderately tolerant to chlorine, so potassium chloride and potassium sulfate should be applied alternately to avoid excessive chloride ion.
Sugar orange can apply more organic fertilizer such as rotten pig manure, chicken manure and so on. Before retting chicken manure, pig manure and other organic manure, use 15% Lesben granule 500 grams / ton, evenly sprinkle on the dung surface after retting, can effectively kill dung insects and other underground pests.
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Selection of nursery land for cultivation of orange rootstock seedlings with sugar
Nursery land should choose places with convenient transportation, good water supply and good power supply, which are slightly farther away from the orange orchard or separated by natural barriers, so as to reduce dangerous diseases and insect infections. It is required that the terrain is flat, the slope does not exceed 5 degrees, and there is no air and water pollution nearby. The soil is deep.
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Can you pile up pig manure by digging roots during dormancy?
Q: is it possible to pile up pig manure by digging roots during dormancy? Answer: from the biological characteristics of sugar orange trees, there is no relatively clear so-called dormancy period. The so-called dormant period, as you may understand, means that the plant enters the flower bud differentiation stage after the beginning of winter.
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