In response to the current situation in our province in which the main herbs are broadcast in the spring, the climate environment and the pests, the following technical measures should be identified:。
Be careful with the good species. Selection of herd varieties adapted to local natural conditions and to local market needs, and purchase and retention of trade instruments through formal channels。
Soil conservation. To ensure that the soil is suitable for plots that are arid or in poor condition, before planting, irrigate, then plough, and soar. The land is soaked that it is flat and sowed in time to avoid running. A combination of deep-farming with bottom fertilizer usually results in one ton of fertilizer per acre, or 50 kg of compound fertilizer, which can be applied more frequently on marginal plots。
And sowing in time. The soybean herds are used as an example, with the pre-spring effort to sow the surface soil when it is unfrozen (the yellow river delta region can use top planting), with an appropriate increase. The grass-breeding period, such as grass-facing, curry, etc., usually occurs after the first half of april, at 15°c and above. Chrysotile seeds generally need to be tanned or immersed in warm water before seeding, which can be broadcasted or planted。
Tight weed control. Planting grass can be used to cut the earth's layers between the fields and to cut the roots of the grass for mechanical weeding, while at the same time acting as a shield against spring droughts. In the event of extensive grass-cutting, weed elimination is carried out with the use of special herbicides for the early recovery of weeds before they reach and rise. Malignant weeds, such as pigs, are recommended for treatment with herbicides before sowing. When sprayed, wind and rain are avoided。
Early pest prevention. In spring, weeds are broadcast with fewer diseases and are generally treated primarily as pests. Adsorption pests, including aphids, masts, blind vermin, can be treated with americium, americium, pyrethroids and dosages are recommended on a commercial basis. Chewing pests, including leaf moths, locusts, etc., can be treated using agents such as methamiacin benzoate, vermin, pyrethroids, acetamine phosphorus, etc., at doses recommended by the commodity。
Precaution. Close attention is paid to weather changes and, in due course, irrigation of unfrozen water to mitigate freezing. Conditional areas or small plots of land can be used to prevent freezing, for example, by covering membranes or straws。
(reporter chen jian jing & & )
