Nitrogen directly affects the yield and quality of crops. If the supply of nitrogen is insufficient, crop growth and development will be significantly inhibited, especially for cotton, rice, corn and other crops with long growing season, high yield, high nitrogen demand, leafy crops and fruit trees. However, if the application of nitrogen is too much, the proportion of nutrients is imbalanced, which tends to cause the crop to grow in length and resist stress, which leads to a decrease in yield and a decrease in quality.
Effects of nitrogen fertilizer on crop growth and yield:
1. Nitrogen and root growth Nitrogen fertilizer can significantly promote the growth and development of new roots, increasing the number of secondary roots, the dry weight of roots and the vitality of roots.
2. Nitrogen and vegetative growth Nitrogen fertilizer can ensure that the crop has a large leaf area for photosynthesis, improve photosynthetic efficiency and increase dry matter accumulation.
3. Nitrogen and yield formation Nitrogen fertilizer can significantly increase the number of spikes per acre, the number of grains per panicle and the weight of 1000 grains, thereby increasing their yield.
Effects of nitrogen fertilizer on crop quality:
1. In the later stage of growth, cereals must pay attention to the balanced supply of nitrogen and sulfur to increase the protein content in the grain. 2. Fiber crops Rational application of nitrogen fertilizer can improve fiber length and fineness. 3. Vegetable crops and fruit trees Rational application of nitrogen fertilizer can not only improve the appearance quality of fruit trees and vegetables, but also increase the content of vitamin C and enhance the storability of fruits.
(Zhang Qiaolan)
Henan Daily (Rural Newspaper)
Effects of nitrogen fertilizer on crop growth and yield:
1. Nitrogen and root growth Nitrogen fertilizer can significantly promote the growth and development of new roots, increasing the number of secondary roots, the dry weight of roots and the vitality of roots.
2. Nitrogen and vegetative growth Nitrogen fertilizer can ensure that the crop has a large leaf area for photosynthesis, improve photosynthetic efficiency and increase dry matter accumulation.
3. Nitrogen and yield formation Nitrogen fertilizer can significantly increase the number of spikes per acre, the number of grains per panicle and the weight of 1000 grains, thereby increasing their yield.
Effects of nitrogen fertilizer on crop quality:
1. In the later stage of growth, cereals must pay attention to the balanced supply of nitrogen and sulfur to increase the protein content in the grain. 2. Fiber crops Rational application of nitrogen fertilizer can improve fiber length and fineness. 3. Vegetable crops and fruit trees Rational application of nitrogen fertilizer can not only improve the appearance quality of fruit trees and vegetables, but also increase the content of vitamin C and enhance the storability of fruits.
(Zhang Qiaolan)
Henan Daily (Rural Newspaper)
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