Affected by the El Nino phenomenon and the Arctic Oscillation, the southwestern China has recently witnessed persistent high-temperature and low-rain weather. Among them, the average precipitation in Yunnan Province is 29% lower than the average for many years, and the temperature is 1.7°C high
Heavy dry land should not be blindly fertilized">Continue Reading →
The chiller is a water cooling device that provides constant temperature, constant current, and constant pressure cooling water equipment. The working principle is to first inject a certain amount of water into the water tank of the machine, and then cool the water through the refrigeration system,
1. Corn tofu can be cold or cooked. It has a unique flavor and rich nutrition. It is a popular green health food. Method: Use common high-quality corn (can not use waxy corn, because of stickiness, not easy to make) into the grinding crushing, each broken into 4 to 8 petals sieve peeled and fine p
Choose fresh and tender, dense pumpkin and bitter gourd, wash and remove the gourd, cut the pumpkin and bitter gourd slices about 1 cm thick and place them on a bamboo drying rack and expose them every 3-4 hours. Must turn over the sun one time. Exposure after 2 to 3 days. The processing method o
Dried pumpkin, bitter gourd, cowpea dry processing tech…">Continue Reading →
First, the basic principle A certain amount of microorganisms, inoculated in a suitable fresh liquid medium, cultured at a suitable temperature, the logarithm of the number of bacteria as the ordinate, the growth time as the abscissa, the curve is called the growth curve.
Experiment 27 Determination of Escherichia coli growth …">Continue Reading →
The autumn of wheat should be given a good seven Seeding is the basis for wheat production. Therefore, timely planting and proper sowing of wheat are especially important. In order to do a good job in autumn sowing, cultivate strong pre-winter seedlings, establish a reasonable group structure, an
Grab the foundation for good harvests when you don’t …">Continue Reading →
Kidney beans are resistant to high temperatures, hi light, more drought tolerant, and impatience. In the spring, greenhouses and other facilities are used for cultivation. To improve the quality of the market, early-maturing, high-yield and high-efficiency products are introduced. 1, choose a goo
Early maturing and high-yielding cultivation techniques…">Continue Reading →