The wheat seedling stage is a critical period for determining the number of panicles by growing roots, pods, and other nutritional organs. Doing a good job in winter management plays an important role in promoting strong wheat seedlings. The standard of the wheat seedlings is: the wheat seedlings are dwarfed, and the leaves are thick and thick, moderate in length, and tender in leaves. The main stalks of the spring winter cultivars show 5 leaves 1 heart to 6 leaves 1 heart, 2 to 3 tillers per plant, 4 to 6 secondary roots, 500,000 to 600,000 stems per mu, and Stems can be seen 6 leaf 1 heart to 7 leaves, 3 to 4 per plant, secondary root 6 to 8, the number of stems per acre population of about 600,000. To achieve this standard must pay close attention to winter management.
Early Miaofei attack early
The 3 leaf stage is the weaning period of wheat, so the wheat weaning fertilizer should be applied in the 2 leaf stage and should be applied to the disease. The nitrogen-deficient seedlings are thin and erect, and the tillers are reduced. They can be combined with irrigating in irrigated water. The superphosphate 20-30 kg per mu is used to chase after the ditch. The sooner the effect of chase, the better. In particular, late sowing of wheat, but also to make immediate use of Miao Fei, so as to make up for late fertilizer, fertilizer to promote early-onset.
Chemical regulation promotes dignity
Paclobutrazol sprayed in the 3 to 4 leaf stage of wheat can promote the dwarfing and thickening of wheat seedlings and increase the number of tillers and secondary roots. Generally, it can increase production by about 10%, especially at the 3-leaf stage. It is advisable to spray 50 kg per gram of paclobutrazol solution with 100-150 g/L, that is, 15% paclobutrazol WP with 33-50 g water and 50 kg spray per acre. Note that wheat sprouts are growing vigorously, and high doses are used when the density is high. The growth is general. When the density is low, it is not suitable to use paclobutrazol when it is low in dose and weak in growth.
Shi Hao La fat roots
As the saying goes: "Winter gold, spring silver, spring fat Lashi into gold." Enough to explain the importance of applying wax to wheat. The wax fertilizer is generally applied before and after the winter solstice. It can apply 1000-1500 kilograms of pig cow manure per acre. It can root the soil and increase the temperature and prevent cold. It can also supplement the deficiency of the base fertilizer, increase the available nutrients in the soil, and partially absorb the winter wheat seedlings. Use, but mostly for spring growth needs. Wax fertilizer can consolidate effective delivery, increase the rate of tillering and succession, promote the differentiation of young panicles, and fight for large grains and spikes.
The cultivator suppressed pressure
Wheat cultivating, usually three times at the seedling stage, that is, once at the beginning of the tillering stage, should be shallow to promote rooting and promote pods; years before the peak tillering stage, can squat 5 to 6 cm to control the population; once in the early spring, shallow to promote Spring hair. Cultivating can also eliminate field weeds, loosen the soil, and reduce the consumption of water, fertilizer, and gas. Seedlings planted too early, the leaves of the seedlings are slender, the tillers are insufficient, and the main stem and part of the big raccoon enter the Erlang period before winter. Such Wang Miao is often weak after the pre-wang, in the winter case of continuous 5 hours minus 8 ~ 10 °C low temperature frostbite, should be appropriate repression, in order to inhibit the growth of wheat seedlings and stems, control prosperous. The repression should be carried out in the morning on a sunny day. When there is frost or dew, the repression should not be carried out to avoid injury. After repression, the fish should be scratched and poured in winter water. At the same time, 10 to 15 kg of ammonium per acre should be applied. If necessary, spray a 0.2% to 0.3% chlormechanin solution to prevent prolonged growth and prevent freezing injury. Through repression, promote early birth and low births, and form strong seedlings through the winter.
Prevent pests and help increase yield
The pests that endanger wheat mainly include wheat bran, wheat spider mites and powdery mildew, rust, and head blight. The disease can be controlled with triadimefon, disinfectant, and bactericide. Prevention of head blight should be applied during flowering. At the same time, clean up the ditch system so that the three ditch can communicate with each other. In the rainy years, water drainage and drainage can be improved to increase the resistance of the wheat seedlings so as to reduce the occurrence of diseases. In paddy fields, intercropping wheat fields, in particular, to open field furrows, combined with clear gully, covering seedlings and earthworms.
1.uncut sheet for urine test low price
2.uncut sheet for urine test high quality
3.uncut sheet for urine test rapidly
4.uncut sheet for urine test OEM design welcome
The benefit to purchase rapid uncut sheet for urine test strip :
To help you saving the shipping cost
To help you being the manufacture
To help you saving the import tax as the materials
Our factory can supply more than 30 kinds of rapid test sheets
Package: aluminum foil package
Advantage: vacuum package can protect the effect of moisture
Uncut Sheet,Uncut Sheet Strips,Rapid Uncut Sheet,Uncut Sheet Urine Strips
Changchun LYZ Technology Co., Ltd , https://www.lyzinstruments.com