How much is the price of beans per jin now? How to prevent and control rust in the process of planting?

Bean is a vegetable rich in nutrients, taste crisp, practice more, deeply loved by consumers. Beans are widely planted in northern China, can be sold all year round, the ability to adapt to the planting environment is very strong.

1. How much is the price of beans now?

Now bean prices have risen steadily, the price is about 2.5 - 6 yuan a catty, there are certain differences around, the price will be affected by the variety of beans, listing time, market conditions, origin, etc. According to the relevant website we can learn that Anhui Anqing City Longshiqiao vegetable wholesale market bean price is 2.35 yuan a catty; Bayannur City Sijiqing agricultural products wholesale market bean price is 3 yuan a catty; Beijing Fengtai District Xinfadi agricultural products wholesale market bean price is 4 yuan a catty; Fujian Fuding Fujian Zhejiang border farmers center market bean price is 5.5 yuan a catty.

2. How to prevent rust in bean planting process?

The pathogen of bean rust overwinters as teliospores on the diseased parts. In the south, the urediospores become the primary infection source of the disease. Although the teliospores exist, they are not important in the annual cycle of the disease. Spring conditions are suitable for the germination of teliospores to produce basidiospores, spread the damage by air flow, and produce pathogens on the diseased parts for repeated infection. At the beginning of rust disease, the leaf spots are yellow-green, round, slightly concave, and gradually brown round spots, 1.3 ~ 4 mm in diameter, with yellow-green halo rings. The spots have brown to black-brown small spots, and finally the brown parts fall off and form perforations. With the development of rust disease, there are rust spores densely gathered together on the back of the leaves, like yellow-white to light brown coarse velvety mold. When the spring sowing plants are budding or early flowering, the mature leaves near the ground are infected first and gradually spread upward. The urediospore pile is produced on both sides of the leaf, nearly round, initially white small blister spots, gradually grayish brown, mature from the top rupture, release reddish brown powdery urediospores. Under suitable conditions, the urediospore pile can form outside the urediospore pile. The urediospore pile on the leaf has or does not have yellow halo, but also can produce light brown withering spots with dark brown edges, single withering spots are round or nearly round, primary green withering water loss shape, naturally do not rupture perforation, multiple withering spots connected often amorphous. On the pale and yellow leaves, green islands are formed around the urediospores. The yellow halo is the most common symptom.

1. Implement crop rotation and crop rotation. In rainy season, do a good job in clearing ditches and draining vegetable fields to prevent ponding in low depressions.

2. Put an end to interplanting late beans in early bean fields. Late beans and early-sown seriously ill fields should be separated by a certain distance and strictly prevented from being closely adjacent.

3, beans reasonable density, ensure good ventilation, set up a good support in time. Do a good job of cleaning the vegetable garden, after harvest will be cleaned and burned.

4. Avoid excessive application of nitrogen fertilizer in the early stage.