The main reasons limiting the high yield of rice

The main reason for limiting the high yield of rice is that rice is the most important organ for photosynthesis and one of the major sources of rice accumulation. Photosynthesis is the process by which rice chlorophyll uses carbon dioxide and water to convert light energy into chemical energy, so the rice chlorophyll content There is an extremely close relationship between the amount of production and the formation of output. The measurement of the chlorophyll content in rice can be measured using the handheld chlorophyll meter. The following will focus on how the chlorophyll content affects rice yield.
The change of chlorophyll content during the rice growth process is the same. By using the chlorophyll meter, the chlorophyll content in the cultivars differs greatly. The chlorophyll content in the high-yield cultivars is higher than that in the low-yield cultivars, while the chlorophyll cultivars are higher. The comparison between chlorophyll content and chlorophyll content showed that the chlorophyll a/b value of the high-yield product was lower than that of the low-yield product, indicating that the yield was positively correlated with the chlorophyll content, but negatively correlated with the chlorophyll a/b value. Therefore, breeding high chlorophyll content and low chlorophyll a/b value has important significance for increasing rice yield.
In this way, their changes were not specifically found. Using chlorophyll meter to study the growth of rice, it was found that the chlorophyll content of high-yield varieties had a small decrease and slow decline, which can be seen from the change in chlorophyll content in different leaf positions. The chlorophyll content of high-yield products in the first three leaves are higher than that of low-yielding rice. From this point of view, the synthesis of organic matter in rice at the later growth stage is higher than that of low-yielding rice, which is beneficial to the increase of rice grain weight. To a certain extent, the yield of rice was increased. However, in those rice varieties with super-high yield, the content of chlorophyll in rice at the late growth stage was much higher than that of other varieties.
Therefore, the most important way to increase the yield of crops is to increase the chlorophyll content in various production stages. However, increasing the chlorophyll content in each period of time is not only dependent on chemical fertilizers, but the main factor is the rice seeds themselves. When planting, varieties with high chlorophyll content can be selected. When applying fertilization during planting, a large amount of fertilizer cannot be applied. The most sensible method is to monitor the soil by using a soil NPK detector. Fertilizing after nutrients can increase food production and improve food quality.

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