a) When the corolla length is 1.6 to 1.9 mm, 12 to 14 days before the flowering period, the heads a...

Every cubic meter of biogas is equivalent to the low calorific value of 0.91 kg of agricultural di...

The 3% salt and fish flesh are crushed, shaped, heated and boiled to a gelled product. The shape a...

The main raw materials: dumplings, white wine. Equipment and equipment: cylinders, pots, sieves, p...

Proteins are the main constituent materials of organisms, and the three-dimensional structure of pr...

China's tilapia culture has developed rapidly in the past ten years. China has become the world...

Pepper is rich in Va, Vc and other nutrients, and has a fragrant and spicy taste. It has the functi...

International oil prices have risen three times a day, and the energy crisis has spread across the ...

The panicle-necked cricket, commonly known as hanging neck and neck ridge, is one of the main dise...

Single-cell algae, short cell algae, due to tiny algae, also known as microalgae. The unicellular a...

The process of changing laying hens from laying to laying hens is called turning. A good grasp of ...

According to local fruit farmers' practical experience, in the summer grape growing season, sev...