How to judge zinc deficiency in rice?
Zinc deficiency in rice generally occurs at the seedling stage. The symptoms are chlorosis and albinism at the base of the new leaves, small leaves, sometimes albino heart leaves, chlorosis or albino stripes in the old leaves, and brown stripes on both sides of the middle ribs. The plant is short, the leaf occipital spacing is shortened, the tiller decreases or does not tiller, the root seedling is weak, the white root is few, the floret sterility rate increases, the heading delay or even no heading, and the mature stage is delayed.
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How to use special compound fertilizer for rice
Special compound fertilizer for rice is a kind of medium concentration compound fertilizer developed according to the demand of nitrogen, phosphorus and potassium after transplanting, which is most suitable for transplanting rice field. It has the characteristics of "low cost", "easy to use", "quick return to green" and "good safety". After use, it can enhance the ability of crops to resist lodging and diseases and insect pests, and the effect of increasing production and income is obvious. Usage: as rice base fertilizer, the dosage is generally 25kg / mu, there is no need to apply other chemical fertilizers, you can transplant rice seedlings immediately after fertilization.
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How to produce high-yielding rice seedlings
Rice is the main food crop in the south and west of Shandong Province, which has high yield and strong commodity, but the income of farmers in the rice area has been affected because of the disorderly varieties and serious diseases in recent years. Therefore, it is necessary to implement various rice seedling techniques to lay a good foundation for high yield and bumper harvest of rice. First, select high-quality varieties. Although Yujing 6 has poor disease resistance, it has good quality, strong photosynthetic efficiency, compensation capacity and high yield, so it should still be the leading variety this year, which can be planted with Lindao 11, Zhendao 88 and Shengdao 80.
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