We know that in soil ecosystems, the content and distribution of soil nutrients and water have a great influence on soil fertility. At the same time, plant cultivation can also affect soil ecosystems and microorganisms and organic matter. Soil nutrients and moisture can use soil. The nutrient speedometer and the soil moisture meter are used for rapid determination. Today we talk about the effects of different periods of wheat growth on soil nutrient moisture.
Studies on the effects of soil nutrients have been reported in small quantities, mainly on the impact of cotton and wheat on the soil fertility and soil enzyme activity, but the results obtained are not the same. It was reported that there was no significant difference in organic matter, N, P, K total amount and available nutrient content in the rhizosphere soil after two kinds of wheat were planted for 82 days.
Studies have shown that the impact of cotton planting season on soil total nitrogen, alkali-hydrolyzable nitrogen, available phosphorus, and available sulfur is minimal; there are also studies that found that cotton is continuously planted in the field for 5 or even 10 years, and soil clay, pH, organic matter There were no significant differences in the physical and chemical properties of soil fertility, such as NPK total amount and effective amount. However, some studies have reported that after cotton potted planting, the contents of organic matter, total nitrogen, alkali-hydrolyzed nitrogen, and available potassium in the cotton rhizosphere soil did not change at the seedling stage and flowering stage, but the available phosphorus content decreased significantly at the flowering stage.
After different wheat growth periods and straw returning to the field, significant differences were observed in organic matter, dissolved nitrogen, available phosphorus and available potassium in the topsoil of Daejeon during the two consecutive years of study. From the above-mentioned existing research results, it can be seen that whether the crop planting will directly or indirectly affect the soil nutrients positively or negatively and its possible causes have not yet reached a complete consensus.
In a small-scale field trial conducted in an acidic soil (pH 5.43, fast-acting phosphorus content 50.5 mg kg-1), the number of soybeans per plant and the number of seeds per soybean were not measured although the case of root-secreted acid phosphatase was not measured (30 strains). The number was significantly higher than that of the control, indicating that the effective phosphorus effect of the soybean was still present when the soil had a readily available phosphorus content of 50.5 mg kg-1. However, the investigation of field yield traits (80 strains) carried out in this study revealed that the total number of pods, the number of grains per plant, and the yield per plant were not significantly different between AP15-1 and its receptor YC03-3, whereas AP15-3 did not. There was a significant difference between the YC04-5 receptors, suggesting that the effects of the phosphorus-rich soils in this study did exist, but the P-efficient performance of these two independent strains showed differences.
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