What kind of fertilizer is good for Ophiopogon japonicus base fertilizer (base fertilizer application method)

Effect of Ophiopogon japonicus base fertilizer

Ophiopogon base fertilizer has a significant effect on the growth of Ophiopogon root system, tuber expansion, and overcoming red root disease. It can enhance the disease resistance of the plant and promote its growth, development and yield.

Ophiopogon japonicus base fertilizer selection

Ophiopogon japonicus has a large demand for fertilizer, and sufficient base fertilizer is the key to high and stable yields. Fertilization should be mainly organic fertilizer, supplemented by nitrogen, phosphorus and potassium fertilizers. Pay attention to applying thin fertilizers frequently, and do not use concentrated fertilizers or raw fertilizers, which are not good for root growth.

How to apply Ophiopogon japonicus base fertilizer

The best time to apply Ophiopogon japonicus base fertilizer is when planting. Evenly spread organic fertilizer when deep plowing the soil, and then plow it to mix it thoroughly with the soil.

Apply 70 kg of optimized formula fertilizer of Ophiopogon japonicus, about 75 kg of oil cake, and 1.5 cubic meters of pig and cattle manure or pile and slag fertilizer per mu. Apply them when renovating the soil, and apply the base fertilizer deeply and throughout the entire layer.

How much base fertilizer should be added

The amount of organic fertilizer in the base fertilizer of Ophiopogon japonicus is 60,000-75,000 kg/ha. The organic fertilizer must be fully decomposed and uncontaminated. Raw fertilizer cannot be applied directly.

How to apply fertilizer to Ophiopogon japonicus

1. Ophiopogon japonicus should be fertilized three times a year. The first time is during the seedling stage, that is, before June, when 2000 kg of decomposed human and animal manure or 12 kg of ammonium sulfate should be applied per 667 meters.

2. The second flowering period of Ophiopogon japonicus from June to July is also the period of tuber growth. At this time, combine weeding and apply more fertilizers containing phosphorus and potassium, such as decomposed pig, cattle and sheep manure, compost, wood ash and superphosphate. When it enters the flowering period, growth regulators such as paclobutrazol can be used, with a dosage of 50 grams per 667m2, mixed with 50 kg of water, and a trace amount of potassium dihydrogen phosphate for spraying.

3. The third time of wintering fertilizer should be applied in early September, with 2000 kg of decomposed manure and 30 kg of superphosphate per 667 m2 to promote tuber growth.