Latest Technical Points for Fertilization Management of Houttuynia cordata

Houttuynia cordata was originally a wild vegetable growing in many places in the south. Because it is loved by a particularly large number of people, some people began to seize the business opportunity and cultivate Houttuynia cordata. Growing Houttuynia cordata, like growing other vegetables, requires appropriate and careful management during the growth period, especially since growth mainly depends on fertilizer nutrients for promotion, so it is necessary to learn how to fertilize and at what stage fertilization produces better results.

1. Fertilizer Requirements

Since the main harvest is its rhizome, and its rhizome grows deep and is widely distributed, and most plants grow in connected patches, fertilization should be comprehensive, and the fertilization site should reach a depth where all rhizomes can absorb it. In addition, more potassium fertilizer should be applied, and less nitrogen fertilizer and phosphorus fertilizer. Rooting requires more fertilizer and a longer fertilization period, so farmyard manure is best. The amount of fertilizer applied must be sufficient.

2. Fertilization Methods

Generally, base fertilizer can be applied by broadcasting over the whole field combined with plowing to mix it into the soil. This way, the fertilization range is wide, which can help make the soil of the whole field fertile and facilitate continuous absorption. For topdressing, most of the time a compound quick-acting fertilizer can be broadcast directly on the surface, and it is fine without covering with soil, to avoid damaging the root system or causing the roots to age. In addition, fertilization can be combined with weeding and intertillage, which needs to be mixed into the soil and then does not need to be covered with soil again. Also, during the vigorous growth period, potassium dihydrogen phosphate can be sprayed on the leaves.

3. Fertilization

1. Base Fertilizer

Before sowing, apply it during land preparation. After application, rotary tillage should be used for careful mixing. For base fertilizer, apply farmyard livestock manure or compost of leaves and straw. Do not apply poultry manure, as its concentration is high and it damages the roots. Generally, the application rate per mu is 2000 jin of farmyard manure, applied evenly. After applying the base fertilizer, one watering should be coordinated within a week to facilitate absorption.

2. Topdressing

The first time is used after emergence when 2 leaves have grown and the plant height is 5 to 10 cm. Mainly apply nitrogen fertilizer, such as urea, generally by opening furrows between planting rows and applying it in the furrows. Urea nitrogen fertilizer has high fertilizer efficiency. Generally, apply about 25 jin per mu, which can mainly promote leaf growth of the seedlings. The second topdressing is used around Qingming, when the rhizome grows most vigorously. At this time, the rhizome will rapidly grow downward, so at this time apply farmyard manure plus a small amount of phosphorus fertilizer, and apply a small amount of potassium dihydrogen phosphate as a foliar supplement. In the later period, observe whether there is a fertilizer deficiency. If there is a deficiency, topdressing can be applied multiple times. Moreover, Houttuynia cordata likes fertilizer, and multiple topdressings can make the root system thick, white, and tender. However, fertilization must be stopped one month before harvest to avoid waste.

If you want vegetables to grow well, they all need fertilizer to escort them, and the same is true for growing Houttuynia cordata. It likes fertilizer and requires a large amount of it. If its fertilizer needs can be met, then the growth quality and yield of this Houttuynia cordata will be more than half guaranteed.