To ensure successful growth of grass poison, it's important to select the right soil. While the choice of soil isn't overly strict, grass poison thrives best in thick, fertile, and sandy soils near water sources. These conditions can significantly enhance both the yield and quality of the crop.
Soil preparation is crucial for optimal growth. The ideal soil should be loose and slightly acidic. Before planting, the soil must be disinfected and enriched with organic fertilizer. A base application of 1500-2500 kg of well-decomposed manure per mu, along with 75 kg of phosphate fertilizer and 15 kg of urea, is recommended. The planting beds should be 100-150 cm wide, 25 cm high, and 25 cm apart to allow proper root development and air circulation.
Choosing the right seedlings is essential. Currently, varieties like Jixin, Xinxing, Fengxiang, Juzao, Chunxiang, May Incense, and Mingbao are considered ideal. It's important to select healthy, disease-free seedlings from a reputable nursery rather than using those from the field.
Transplanting should be done during the middle to early part of September when the weather is more favorable for root establishment. If possible, transplant on rainy days or in the early evening to reduce stress on the plants.
When transporting seedlings, it's important to control watering and fertilization before shipment. Seedlings should be aired out to prevent damage. If transportation is necessary, remove some older leaves or leave petioles about 7-10 cm long. Place them in a water-pulp bag to maintain moisture. Upon arrival, rinse the roots with water and plant them as soon as possible to minimize transplant shock.
For planting, arrange 4-6 rows with a spacing of 20-25 cm between plants, resulting in approximately 1.2 to 1.6 million plants per acre. Before planting, soak the roots in a 5-10-10-6 acetic acid solution for 2-6 hours to promote root development. Plant at a depth that allows the roots to be shallow but not exposed, ensuring good drainage and preventing silt buildup.
After planting, it’s important to provide consistent care. Water the plants 1-2 times daily in the morning and evening for the first 2-3 days, then water once after that. If planting on sunny days, provide shade for the first few days. After 4-5 days, gradually remove the shade over 7-8 days. Once the seedlings have settled, apply 7.5 kg of urea per acre. A final watering should be done before winter. When temperatures drop below 4°C to 5°C, cover the plants with straw, 10-20 cm thick, to protect them from frost and ensure survival through the cold season.
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