1、Phosphorus balance and availability in black soil under long

It consisted of ten treatments, including no fertilizer (CK), four chemical fertilizer treatments (N, P, NP and NPK), solely horse manure (M), and chemical fertilizer plus manure (MN, MP, MNP and MNPK). All treatments had three replicates.

2、Effect of organic matter on phosphorus adsorption and desorption in a

High concentration phosphate fertilizers such as calcium superphosphate and ammonium hydrogen phosphate have been applied in large amounts to black soils in China to improve the crop yields and crop quality (Zhou et al., 2015).

3、Exploring phosphorus fertilizers and fertilization strategies for

Mineral phosphorus (P) fertilizers support high crop yields and contribute to feeding the teeming global population. However, complex edaphic processes cause P to be immobilized in soil, hampering its timely and sufficient availability for uptake by plants.

4、Effects of Long

This study explored the effect of the combined application of chemical and organic fertilizers on phosphorus morphology and its conversion to an active state. A long-term field positioning experiment comprising five treatments was conducted in black soil.

Soil Nutrient Changes in Black Soil of Northeastern China Under Long

Soil nutrient profiles are influenced by several anthropogenic management patterns, including fertilizer application methods and tillage practices. A comprehensive analysis of the influencing factors can help to understand the mechanisms of nutrient changes in black soil cropland.

Phosphorus Availability and its Sustainable Use

Hence, modern agriculture has become dependent on regular inputs of phosphate to achieve high outputs and ensure food security. The use of mineral P fertilizers manufactured from mined rock phosphate (RP) has led to an open P cycle that has given rise to serious ecological concerns.

Phosphorus Distribution within Aggregates in Long

Understanding soil phosphorus (P) distribution and its key drivers is fundamental for sustainable P management. In this study, a 21-year fertilization experiment on black soil was carried out, setting up five fertilization treatments: unfertilized control (CK), nitrogen and potassium (NK), nitrogen, P and potassium (NPK), NPK plus straw (NPKS), and NPK plus manure (NPKM). The distribution and ...

Influence of fertilizer and manure inputs on soil health: A review

The objectives of this review are to summarize the state of literature on the influence of nutrient inputs, such as fertilizer and manure, on soil health and to identify research gaps that may allow refinement of our knowledge of soil health enhancing practices.

Determining the Optimum Level of Soil Olsen Phosphorus and Phosphorus

P is also a nonrenewable resource, sourced from the phosphate rocks. Therefore the optimal P fertilization is one of key issues in both agriculture and environmental protection.

Understanding phosphorus fertilizers

There should be no difference in P fertilizer sources, as long as nutrient analysis differences are taken into account. While there are certain situations where one product performs better, phosphorus fertilizer recommendations are the same regardless of the phosphate fertilizer source.

Before discussing whether black soil contains phosphate fertilizer and why it should not be used, it is essential to understand some background information. Black soil, unique to the northeastern region of China, is characterized by its high organic matter content, loose structure, and excellent permeability, making it highly suitable for crop growth. despite its superior agricultural value, black soil is not an ideal source of phosphate fertilizer. Below, I will explain in detail why black soil is unsuitable as a phosphate fertilizer source.

1. Soil Structure and Composition

First, let us explore the structure and composition of the soil. Black soil is a typical organic-rich soil, with organic matter content often exceeding 20%. This gives black soil strong water-retaining capacity and good permeability. this high organic matter content also means that the soil contains relatively less phosphorus. Studies show that the total phosphorus content in black soil ranges from 0.05% to 0.3%, significantly lower than other soil types.

2. Effectiveness of Phosphate Fertilizer

Phosphate fertilizer is indispensable in agricultural production and crucial for plant growth. due to the insufficient available phosphorus in black soil, directly applying phosphate fertilizer does not effectively improve crop yields. This is because the phosphorus in phosphate fertilizer must undergo chemical reactions to be absorbed by plants, while phosphorus in black soil primarily exists in inorganic forms, which are not easily absorbed by plants.

3. Impact of Soil pH

Additionally, soil pH significantly affects the effectiveness of phosphate fertilizer. The pH of black soil is typically around 6.0, slightly alkaline. This acidic environment hinders the dissolution and release of phosphorus from phosphate fertilizer, reducing its effectiveness. even with added phosphate fertilizer, its yield-enhancing effects cannot be fully realized.

4. Selectivity of Phosphate Fertilizer

Finally, the selectivity of phosphate fertilizer must be considered. Different crops have varying phosphorus requirements, so selecting phosphate fertilizer types suitable for specific crops is critical. due to the low available phosphorus content in black soil, directly applying phosphate fertilizer may fail to meet the phosphorus needs of certain crops, leading to stunted growth or reduced yields.

although black soil has high organic matter content and good permeability, its low phosphorus availability and soil pH constraints mean that directly applying phosphate fertilizer does not significantly boost crop yields. In actual agricultural production, multiple measures should be taken to improve phosphate fertilizer utilization in black soil, such as rational application of organic fertilizers, adjusting fertilization practices, and selecting phosphate fertilizers specifically formulated for black soil. Only by doing so can we fully leverage the agricultural potential of black soil and better support agricultural production.