Regulator for increasing low temperature resistance, increasing lodging resistance, enlarging ears, increasing grains and increasing yield for paddy and preparation method thereof

Abstract

The invention relates to a regulator for increasing low temperature resistance, increasing lodging resistance, enlarging ears, increasing grains and increasing yield for paddy and a preparation method thereof. The regulator for increasing low temperature resistance, increasing lodging resistance, enlarging ears, increasing grains and increasing yield for paddy comprises the following components based on concentration: 50-150g / L of poly-aspartate, 10-30g / L of metasilicate, 20-30g / L of plant growth regulator and 65-67g / L of activator and speader, and the solvent is water. The regulator for increasing low temperature resistance, increasing lodging resistance, enlarging ears, increasing grains and increasing yield for paddy can increase the yield of paddy by more than 20%, and simultaneously can improve the cold resistance and lodging resistance of paddy, accelerate the development of paddy ears and increase the weight of grain.

Description

technical field [0001] The invention relates to a plant growth regulator, in particular to a low temperature resistance, lodging resistance, panicle expansion, grain increase and yield increase regulator for rice. Background technique [0002] Rice is the main food crop in my country, and rice is the staple food of more than 65% of the population in my country. In the 60 years since the founding of the People's Republic of China, my country's rice production has developed greatly. The planting area has increased from 25.4 million hectares to 31.4 million hectares, the per unit yield has increased from 1.9t / hm2 to 6.3t / hm2, and the total output has increased from 48.64 million t to 200 million t The average proportion of rice planting area to grain planting area is 28.3%, and the total output accounts for about 40% of the total grain crop output, ranking first in the world. [0003] At present, the annual planting area of ​​rice in my country is 30 million hm2, of which the a...

AI Technical Summary

Problems solved by technology

In 2005, the large area of ​​empty shells caused by the obstacle chilling injury in the Heilongjiang rice field caused a significant drop in yield

Among them, passive cold avoidance measures include cultivating strong seedlings, sparse sowing and sparse planting to resist cold damage, scientific fertilization, and water management to resist low temperature and cold damage, such as reducing nitrogen fertilizer, increasing phosphorus fertilizer, shallow water irrigation and raising water temperature, etc. However, although these measures are to a certain extent On the other hand, it can resist cold damage, but it cannot guarantee the normal maturity of rice, which also leads to reduced yield.

Active cold resistance measures include foliar spraying of phosphorus fertilizers, spraying warming agents and plant growth retardants such as diclobutrazol, paclobutrazol, etc. Although these measures have increased the cold resistance of rice to a certain extent, the treatment of foliar spraying retardants The effect of reducing yield on rice is even greater than the effect of chilling injury, so the actual application effect is not good, and it cannot be used in large-scale production

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