Ziyunying, also known as hairy vetch, is an annual leguminous crop that forms a symbiotic relationship with nitrogen-fixing bacteria in its roots. These bacteria can convert atmospheric nitrogen into a form that plants can use, making Ziyunying an excellent green manure crop. According to field tests, the average yield of Ziyunying during its flowering period is around 5-8 kilograms per mu (approximately 0.67 acres). When planted in rice fields during winter, it significantly reduces the need for chemical fertilizers and helps increase rice yields. Studies have shown that every 2000 kg of fresh Ziyunying grass can provide about 10-12 kg of urea equivalent and contribute to an additional 25-40 kg of rice per mu. In addition, it enriches soil nutrients, improves soil fertility, and enhances long-term agricultural productivity.
Another benefit of Ziyunying is that it can be used as silage, which helps solve the problem of insufficient green fodder in early spring. Its tender seedlings are also edible and considered a delicious vegetable. To ensure successful cultivation, the following key points should be observed:
First, timely sowing is essential. Ziyunying thrives in cooler climates and can be sown about 25 days before the end of the late rice harvest, typically at a rate of 1.5 kg per acre. Before planting, the rice field should be dried to prevent waterlogging, and if the field is too dry, it should be watered lightly. Seeds should be sun-dried, rubbed, and soaked to improve germination. Sun-drying helps activate enzymes in the seeds, increasing their germination rate. The rubbing process removes the waxy coating on the seed surface, allowing better water absorption. This can be done by mixing the seeds with coarse sand and rubbing them by hand or using a rice mill to gently polish the seeds until the outer layer becomes smooth. Soaking the seeds for 12–24 hours can further soften the seed coat and promote uniform germination. After soaking, the seeds should be dried before sowing to avoid poor sprouting due to excessive moisture.
Second, inoculation with rhizobia is crucial. Once the seeds begin to germinate, they should be treated with rhizobial bacteria. A mixture of 0.5 kg of *Melilotus vulgaris* rhizobia with 7.5 kg of Ziyunying seeds can be used to cover 5 acres of land.
Third, proper fertilization is important. Phosphorus and potassium fertilizers should be the main sources, while nitrogen should be used sparingly. After harvesting late rice, apply 10–15 kg of superphosphate and 1,000 kg of organic manure to encourage early nodulation and seedling growth. Around the Winter Solstice, apply 3–4 kg of potash or 50 kg of wood ash to enhance cold resistance in the seedlings. After the Spring Equinox, applying 3–5 kg of urea can help accelerate leaf growth and boost the yield of fresh biomass.
Fourth, effective field management is necessary. After the late rice harvest, drainage ditches should be dug promptly to maintain proper moisture levels without waterlogging, especially in the later stages. Common diseases include powdery mildew, which can be controlled with a 0.05% solution of fungicides like propiconazole or carbendazim. Pests such as locusts and thrips can be managed with dimethoate. For *Mythimna separata*, a mixture of 90% trichlorfon (100 grams), 150 ml of rice vinegar, and 5 grams of saccharin in 75 kg of water can be sprayed. During the flowering stage, it’s important to retain the field to prevent thrip damage and improve pod setting. Also, take measures to prevent livestock from grazing on the crop.
Fifth, timely green manuring is recommended. Usually, this is done 15–20 days before transplanting. Applying 25–40 kg of lime per acre helps decompose the Ziyunying biomass and neutralize soil acidity.
Wuhua County Agricultural Disease and Pest Control Station
Vegetarians Size 00 Empty Capsule
Vegetarians Size 00 Empty Capsule,Gelatin Empty Pills Capsules Vegan,Colorful Vegan Empty Pills Capsules,Size 00 Empty Pills Capsules Vegan
Ningbo Jiangnan Capsule Co., Ltd. , https://www.jncapsule.com