A Detailed Explanation of Rice's Nutrient Requirements: Master the Latest Fertilization Key Points
Rice can be said to be the number one food crop in our country, and the staple food in most provinces every day is rice. Rice is basically grown in all parts of our country. When growing rice, if you want to increase rice yield, then fertilization work is indispensable. When we fertilize rice, we first need to understand the nutrient requirements of rice. So today, the editor will briefly introduce the nutrient requirements of rice to everyone. Let's take a look below!
1. Nutrient Requirement Patterns
Throughout its entire growth period, rice needs more than a dozen kinds of nutrient elements. However, its absorption amount can decrease because the soil's supply is insufficient. Among them, the three main nutrient elements are nitrogen, phosphorus, and potassium. Rice's absorption of nitrogen, phosphorus, and potassium varies depending on yield and growth stage. For example, during the vigorous tillering stage and the heading and flowering stage, rice's demand for nitrogen increases. If nitrogen fertilizer is applied at this time, it can improve the yield and quality of starch. If nitrogen is insufficient before rice heading, it will cause insufficient nutrition in the grains, thereby reducing quality.
2. Phosphorus Absorption
Rice's demand for phosphorus is also relatively large, and when fertilizing, we naturally cannot ignore the supplementation of phosphorus. However, rice's absorption of phosphorus does not differ much across the various growth stages. The periods with relatively large absorption are generally the tillering stage and the young panicle differentiation stage. Phosphorus is very important for rice growth. It can promote the growth and development of rice roots, promote nutrient absorption, and can also enhance tillering ability and improve grain plumpness.
3. Potassium Absorption
Next is the absorption of potassium. Rice's absorption of potassium is also very large. Generally, from the time of rice panicle differentiation until the heading and flowering stage is the main period of potassium absorption. Then there is the rice tillering stage and panicle differentiation stage. For rice, potassium is an essential nutrient for synthesizing starch and cellulose and for transporting nutrients in the rice plant. It has the effects of improving root vitality, delaying leaf aging, and improving resistance to pests and diseases.
4. Trace Elements
In addition to the common elements above, the two trace elements silicon and zinc also have a relatively large impact on rice growth. The stems and leaves of rice plants contain about 15% silicon dioxide. Reasonable application of silicon fertilizer can enhance the plant's resistance to pests and diseases and its lodging resistance. This achieves the purpose of increasing yield and can also improve rice quality. Zinc fertilizer, on the other hand, can increase the number of grains per panicle and the 1000-grain weight of rice, reduce the empty grain rate, and play a role in increasing yield, especially on calcareous alkaline soil where the effect is more obvious.
The above is a brief introduction to the nutrient requirements of rice. That is all for today's introduction. This article is for reference only, and we hope it can be helpful to everyone!