It is necessary to choose heat-resistance, disease-resistance, and early-maturing varieties in order to use unripe varieties of high-temperature, rainy or dry summers to adversely affect the growth and development of summer cabbage. Should choose to under the conditions of high temperature and lon-----
Greenhouse planting needs to control the temperature and humidity inside, as well as the light intensity, and transform the environment inside into an all-environment environment suitable for plant growth. Here we will introduce the control of the moisture in the greenhouse. The technology of wat-----
The technical core of soil testing and formulating fertilization mentioned in agriculture and forestry production is to regulate and solve the contradiction between crop demand fertilizer and soil fertilizer supply. What elements need to be supplemented in crops, how much they need to be supplemen-----
Answer: The quinclorac is a hormonal herbicide. It mainly achieves the purpose of herbicide by inhibiting the growth of plants, and causes phytotoxicity to crops when the amount is large. The mechanism of action of paclobutrazol is also to inhibit the growth of crops and achieve the purpose of cont-----
[Prescription] South Banlangen 940g Daqingye 400g Jinqi silver plate 660g Gangmei 860g Mountain sesame 460g Acetaminophen 24g Andrographis 40g Hydrochloride morpholinium 24g Maleic acid chlorpheniramine 1g [Method] The above nine flavors, take Jinshao Yinpan, Daqingye-----
purpose Successfully screened coumarin in vanilla extracts and foods with convenient techniques without sample extraction, filtration, dilution or separation. background Coumarin is a natural compound found in a variety of plants, including fragrant beans, foxgrass and certain varieties of cinna-----
1 pond condition Select ponds near the sea, with convenient drainage and drainage, and fresh water sources, and carry out renovations, siltation, and slopes. The slope ratio is generally more than 1:3. The pond area is not limited, and the average single pond is above 1.2ha, or imitate the natura-----