In the process of corn planting, top dressing watering is prone to misunderstandings. Next, I will summarize the misunderstandings of corn top dressing watering for everyone. Misunderstanding 1: Chase when there is fertilizer, and pour when there is water In the seedling stage before jointing, if topdressing and watering are not carried out according to the actual conditions of drought, moisture content, seedling strength, etc., the seedlings on the ground are often lengthened, and the roots in the ground are difficult to pierce deeply, and the seedlings are lost. The opportunity to squat the seedlings for exercise will bury hidden dangers for future plant lodging. Excessive top-dressing watering during the filling period will increase investment and waste fertilizer. It will also cause corn to be greedy and late maturing, and suffer the undesirable consequences of frost. Misunderstanding 2: Fatty and water are mostly used for food After the beginning of jointing, topdressing in the second hole, and timely medium tillage. After the booting starts, a second top dressing and field cultivation are carried out. The third hole top dressing is carried out during grouting, and the total amount of these three top dressings should not exceed 30 kg. Each top dressing amount can grasp the principle of lightness, middle weight and lightness: 30% of the total fertilization at the jointing stage, 60% of the total fertilization at the booting stage, and 10% of the total fertilization at the filling stage. Urea is suitable for top dressing. Misunderstanding 3: Pay attention to nitrogen, phosphorus and potassium, and despise micro-fertilizers Micro-fertilizer has a great impact on the growth and development of crops. Take zinc fertilizer as an example, corn is very sensitive to its reaction. Experiments have shown that: applying zinc fertilizer to corn can increase the number of grains per ear by 50-80 grains, increase the thousand-grain weight by 15-30 grams, reduce the bald tip rate by about 50%, and increase the yield per mu by 8%-15%. Misunderstanding 4: Topdressing and cultivating are not needed after heading After corn heads, there are many plots due to insufficient base fertilizer application or low quality, and the effect of top dressing has been exhausted, and the nutrients in the soil can no longer meet the growth needs of corn. It is urgent to apply some nitrogen and phosphorus fertilizers to prevent premature aging, promote grain filling and full grain, and increase thousand-grain weight. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone 10000Hz High Frequency LiDAR Module 10000 Hz is one of our 2021 new solutions products,which can be widely used in drone postioning, car anti-collision, intelligent traffic monitoring etc. with high accuracy. We support customized service of different frequency(100hz,200hz,300hz,400hz,1000hz,5000hz,10000hz etc.), you can choose the suitable design. And the LiDAR module is a small size with 43*35*21mm, customers can be integrated to their measure device easily. If you meed any documents(PDF files etc.) of JRT high frequency LiDAR distance sensor, please contact us now. lidar laser,LiDAR,High Frequency LiDAR Module,10000Hz LiDAR Module Chengdu JRT Meter Technology Co., Ltd , http://www.rangingsensor.com
Some key features may help:
Accuracy: ±3~5cm(<50m) /±1%(>50m)
Range: 0.1-200m
Resolution: 1cm
Frequency: 100/200/400/1k/5k/10khz
Laser type: 905nm,Class I
Size: 43*35*21mm
Weight: 20g
Input voltage: 8-36V