Fertilizer can increase yield during late and late rice growth

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The late-stage application of foliar fertilizer in rice can increase grain and increase weight, generally increase production by 5% to 10%, and improve quality. Therefore, the following foliar fertilizers can be selected according to the conditions.

Grain fill rice heading period and milk ripening stage Mu grain full package (50 grams) 50 kilograms of water to dissolve and stir well after foliar spray. The grain can be mixed with pesticides used to control pests, but it must not be mixed with basic substances such as alkaline pesticides. Must choose no rain weather, when the dew is dry, use a sprayer to evenly spray fine mist on the rice leaves, with the use of the spray, spray within 6 hours after spraying and then make up again. It is strictly forbidden to spray grain on the seedlings before and after the heading of rice, and the late glutinous and late ripening.

Potassium dihydrogen phosphate and urea rice leaves can maintain a certain nitrogen level at the later stage, which is beneficial to prevent premature senescence and increase the seed setting rate, and at the same time prevent the lack of phosphorus and potassium in the plant. Spraying potassium dihydrogen phosphate and urea at the late stage of rice is beneficial to extend the functional period of canopy leaf. At the full heading stage and about 7 days after full panicle application, each was sprayed with a mixture of 0.3% potassium dihydrogen phosphate and 0.5% urea.

"90%" is a plant growth regulator that can supplement hormones and maintain growth function. Appropriate application of "90%" in late rice will help prevent premature aging and prolong photosynthesis in leaves. At the same time can also promote the panicle, reduce the neck of hybrid rice. When heading rice is 20% to 30%, mu is sprayed with 1 g of “900” powder (with a small amount of concentrated wine) or 50 ml of emulsion with 25 ml of water. It is better to add 0.3% of potassium dihydrogen phosphate. Pay attention to the strict control of dosage, the “crab” for the long seedlings and poor lodging resistance of the Bronze Barbara cannot be used “920”, and “900” is strictly prohibited before heading.

The multi-element advanced compound fertilizer contains nitrogen, phosphorus, potassium, sulfur and iron, boron, manganese, copper, zinc, molybdenum, magnesium and other trace elements. Spraying at the heading stage of rice can increase the number of effective panicles and increase the seed setting rate and grain weight. During the heading stage of rice, mu 8 to 10 packets (20 grams per packet) are sprayed on 50 kilograms of water.

The rare earth is a collective name for 17 elements such as yttrium, ytterbium, ytterbium, and yttrium. The application of appropriate amount of rare earth can improve the root activity, promote the absorption of nutrients by crops, and increase the content of chlorophyll in leaves. From rice breakage to heading stage, 0.03% rare earth solution was sprayed on the foliage.

In the early stage of earing, triacontanol rice was grown with five million alkanol solutions and 0.3% potassium dihydrogen phosphate was added to foliar sprays to increase seed setting rate and grain weight.

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