In the late stage of late rice growth, especially after the booting, with the gradual decline of temperature, the root absorption function is declining day by day, while the panicle is still in the stage of nutrient enrichment and needs sufficient nutrient supply. If there is a process through fertilizing the soil, if the leaf noodle fertilizer is applied through the roots to supplement the nutrient and the rice stems and leaves are directly absorbed and utilized, the fertilizer is less and the effect is quicker. The types of foliar fertilizers and fertilization on late rice are:

1, nitrogen fertilizer Late rice growth in the late period of nitrogen deficiency, yellow leaf premature aging, seed setting rate decreased. Spraying 1% of urea and 4000 times of 802 mixture at the booting stage and the beginning of filling can prolong the life of functional leaves, and the effect of increasing production is obvious. Spraying time is preferably 8 to 10 AM or after 5 PM.

2. Phosphate fertilizer Spraying phosphorus at late growth stage of late rice can increase seed setting rate and 1000-grain weight and promote ripening. Generally, 2% calcium superphosphate solution is sprayed from the heading to the filling stage. The preparation method is as follows: Take 2 kg of high-quality superphosphate, crush it, pour it into 100 kg of water, stir it well, filter it after soaking for 24 hours, and spray 60 kg of filtrate per acre. In the nitrogen-depleted field block, 50 kg of urea and 0.5 kg of urea can be sprayed in the prepared phosphate fertilizer solution.

3. Potassium fertilizer sprayed once at the booting stage and full heading stage of late rice can promote heading and increase seed setting rate. Take 5 kg of fresh grass ash, add 100 kg of fresh water soaked (fully stirred) for 24 hours, and take the clarified liquid for spraying, each time about 50 kg of fertilizer solution per acre. 1% potassium chloride solution or 2% potassium nitrate solution can also be used.

4, potassium dihydrogen phosphate Potassium dihydrogen phosphate is a high concentration of binary compound fertilizer, sprayed on late rice, can enhance the cold resistance, increase grain gain and increase production. Usually in the booting stage, heading period of each spray once, each time with 150 grams of potassium dihydrogen phosphate per acre, add 50 kg of water spray. When heading reaches 20%, use 150g of potassium dihydrogen phosphate per acre plus 1-2g of 9200 per acre (if it is powder, it is better to dissolve with alcohol or high white spirit first), add 50kg of water evenly to spray cloth, and promote heading and orderliness. , reduce the neck, has a significant increase in production.

5, zinc fertilizer used zinc sulfate, one spray once at the heading stage, can promote the ordering of the ear; second, spray once at the full heading period, can accelerate the nutrient operation, enhance the blade counter-kinetic, and promote grouting. Each time, 100 grams of sulphate is used per acre and 50 kilograms of water is sprayed. If the mixture is sprayed with potassium dihydrogen phosphate, the effect is better.

6, boron fertilizer in the late rice filling stage, boron nutrient supply is adequate, high seed setting rate, less empty. The 0.1%-0.3% borax solution was sprayed once at the full heading stage and the grain filling stage of hybrid late rice, which could increase production by about 10%. In the low-temperature and rainy conditions that are not conducive to late rice grouting, the effect of boron injection is better. When preparing the borax solution, the borax is first dissolved with a small amount of warm water, and sprayed immediately after being blended.

Wand Massager

Spice Novelties Co.,Limited , https://www.wholesale-adult-toys.cn