At the moment, it is the time when farmers buy spring sowing seeds. How to help farmers choose corn seeds is a key issue related to whether they can increase production and increase income. If the corn variety chooses the right path, it can increase the emergence rate, reduce pests and diseases, and provide a good guarantee for harvesting. Here are some of the following selection techniques for farmers' reference.
Selection of a place
According to the high temperature of the selected land, it is advisable to choose late-maturing varieties or mid-late maturing varieties with long growth period; suitable for mid-late maturing varieties in the flat growth period;
According to the soil fertility, the plots with good soil fertility should be selected for high-yield varieties of fertile water; for plots with poor soil fertility, it is advisable to choose varieties that are resistant to inferiority.
Second, according to the previous selection
If the former glutinous rice is soybean, the soil fertility is better, and high-yield varieties should be selected; if the former glutinous corn grows well and has high yield, the variety can be continued; if the former glutinous corn is infected with a certain disease, it should be avoided when the seed is selected. Diseased variety. In addition, in a certain plot, after three or four years of continuous breeding of a variety, there will be a lack of land and variety degradation, and new varieties should be replaced.
Three varieties vary from person to person
Farmers with relatively fine farming can choose varieties that require high levels of farming; farmers who do not have fine farming should choose varieties that are not strict with farming.
4. Select the variety according to the disease
The more prominent disease is corn rough disease, which is mainly related to soil, soil nutrients are not balanced, and the ground temperature is not normal. Such plots should not be planted in the sea 9 and Denghai 9 is suitable for plotting soils with balanced nutrients and high maturity in the soil. Plants grow robustly and yield high yields.
Five estimates precipitation and accumulated temperature to select varieties
The general experience is that the amount of snowfall in the winter is small and the winter is not cold. In the second year, the rainfall will be more in summer, and the accumulated temperature will not be high. It is not recommended to breed varieties with long growth period to prevent insufficient accumulation of temperature and affect maturity. On the other hand, if the snowfall in winter is large in the winter and the winter is very cold, the summer rainfall is generally less in the summer and the accumulated temperature is higher. When selecting the variety, the drought resistance of the variety should be emphasized, and the variety with long growth period can be planted. You can plant some mid-late maturing varieties appropriately.
Six select seeds according to appearance
The reliable quality seeds generally have the following characteristics: 1 The package is sealed once, with the name and detailed address of the seed company and the contact number. 2 The date of manufacture, purity, clarity, moisture and bud rate on the seed label are clear. 3 The shape, size and color of the seeds are neat and uniform.
Dna Sample Processing Instrument,Dna Extractor Clinical Analytical Scientific Instrument,Sample Processing System For Dna,Dna Automated Sample Processing System
Nanjing Superyears Gene Technology Co., Ltd. , https://www.superyearsglobal.com