The sowing of winter wheat is an important agricultural task in this festival, and the area involved is very wide. The suitable sowing date varies from place to place, just like the farmer's house cloud: “cold dew to frost, planting wheat is panic.†Winter wheat is a wintering crop with a long growth period. It takes a long period of time from autumn to new year, greening, jointing, heading, grouting and yield formation, especially the sowing to greening, which is the cold and arid climate in winter and spring. In order to ensure the winter wheat safely and smoothly return to green, and then lay the foundation for high yield, only by grasping the basic link of sowing, it is necessary to cultivate a tidy, strong and resistant wheat seedling group. To this end, the application of fertilization is an obvious and feasible key measure.
The high yield of winter wheat is not negligible. The effect of applying fertilizer is mainly to provide the required nutrients for the wheat seedlings. When the seedlings just came out, the roots developed weakly, and the ability to absorb fertilizer and water was very poor. However, in the northern wheat area, when the winter wheat was planted, the soil temperature was already low, and the soil's own nutrient release was slow, and there was a possibility that the supply would not be available. Although the demand for nutrients in winter wheat seedlings is small, it is very sensitive and strict, and it needs to supply less and better nutrition. Therefore, the role of the seed fertilizer is to ensure that the wheat seedlings are young and vigorous, and they will survive the winter and return to green in time. This is one of the keys to high yields of winter wheat. When this kind of fertilizer applied to refined wheat seedlings can be improved drought cold tolerance, to achieve the purpose of cultivation of seedlings.
What fertilizer is applied to the fertilizer? The most needed fertilizer is phosphate fertilizer. The need for phosphate fertilizer is very urgent. It is sensitive to the reaction of phosphate fertilizer, and the seedling stage is the critical period of phosphorus nutrition. At this time, if the supply of phosphorus is insufficient or severe phosphorus deficiency, both seedlings and seedlings will appear. In the face of drought and cold, and froze to death seedlings problem; and over the seedling stage, even after the fix P fertilizer at this time can not compensate for the loss caused.
Therefore, the appropriate ratio of nutrient to nutrient distribution should be based on phosphorus, with a small amount of nitrogen. Fertilizer varieties can be compound fertilizer or single fertilizer. For example, the commonly used varieties of fertilizers in the northwest and north China wheat regions are diammonium phosphate. In the binary compound fertilizer, diammonium phosphate and nitrophosphate can be used. In the middle and lower reaches of the Yangtze River, the most commonly used varieties are low concentrations. Calcium phosphate and an appropriate amount of ammonium sulfate are preferred. However, urea, ammonium bicarbonate and ammonium chloride are not suitable for seed fertilizer. Since the suitable nutrient distribution ratio of the seed fertilizer is less than the phosphorus and nitrogen, it is generally not necessary to use the high nitrogen compound fertilizer as the seed fertilizer, so as to avoid the problem of the seedlings being weak or burning.
How much is the amount of fertilizer applied? The amount of fertilizer should not be too much. It is necessary to master the principle of less and finer and promote the application of precision. Diammonium phosphate is suitable for 5 kg / mu. Although its quantity is not much, it can play the role of “ four or two pounds â€; calcium superphosphate should be 8 kg / mu; ammonium sulfate should not exceed 5 kg / mu.
Finally, the application method of the seed fertilizer and the location of the fertilization are also very important. Regardless of whether the machine is broadcasted or the animal is broadcasted, the seed fertilizer cannot be directly contacted with the wheat, and the fertilizer should be applied to the two or three centimeters below the oblique direction of the wheat. It is safe to separate the wheat from the conventional fertilizer.
LED Grow Light Bar Description
LED Grow Light Bar is design with 6 to 10 bars. Input power at 600W to 1000W. It is special Design, Each bar can be detachable, it is easy for installation and transportation. It is also the best solutions with packaging to save freight cost.
The LED Grow Light Bar make with customized bars, It is make with high quality Samsung LED Chip, photon flux up to 1800-2800 μmol/s. Lamp efficacy up to 2.7 μmol/J. Dimmable can be widely used in seed starting, Bloom and VEG. Full spectrum for all growth stages. More than 50% higher PPFD compared with HID lamps.
LED Grow Light Bar Advantages
DIMMABLE LED GROW LIGHT
Customized 6 /8 /10Bars
ETL approved Efficacy up to 2.7 μmol/J
PPF: 2000 μmol/s
Full Spectrum
Light Source: Samsung 3030 & Osram 3535
Available Stock
Dimming Option: MW 0-10V Dimming
Certificate: ETL / CE / ROHS
3 Years Warranty
IP65 Waterproof
LED Grow Light Bar Specifications
Product Name
640W LED Grow Light
Model Number
ZYSJ-BZ640
Wattage
640W
PPF
1700 μmol/s
Efficacy (PPE )
2.7 μmol/J
Input Voltage
100-277VAC 50/60HZ
LED Brand
Samsung Warm White and Osram Red Light
Color
Full Spectrum
Driver Brand
MeanWell Driver
Lamp Size
1200x1180x70mm
Lamp Weight
11.5 Kg
Material
Aluminum
IP Rating
IP65
Lifespan
50,000 Hours
Certificate
ETL, FCC, CE, RoHS
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