Phosphate

---
name: "phosphate"
version: "1.0.0"
description: "Phosphate fertilizer reference — P2O5 forms, application timing, soil testing, runoff management, crop requirements. Use when planning phosphorus fertilization programs or managing phosphate resources."
author: "BytesAgain"
homepage: "https://bytesagain.com"
source: "https://github.com/bytesagain/ai-skills"
tags: [phosphate, phosphorus, fertilizer, agriculture, soil, nutrient, p2o5]
category: "agriculture"
---

# Phosphate — Phosphorus Fertilizer Reference

Quick-reference skill for phosphorus nutrition, fertilizer products, and management.

## When to Use

- Planning phosphorus fertilization for crops
- Interpreting soil test phosphorus levels
- Selecting phosphate fertilizer products and forms
- Managing environmental phosphorus runoff risks
- Understanding phosphorus cycling in soil

## Commands

### `intro`

```bash
scripts/script.sh intro
```

Overview of phosphorus in agriculture — role, cycling, global reserves.

### `products`

```bash
scripts/script.sh products
```

Phosphate fertilizer products — MAP, DAP, TSP, rock phosphate, SSP.

### `soiltest`

```bash
scripts/script.sh soiltest
```

Soil phosphorus testing — Bray, Olsen, Mehlich, interpretation tables.

### `placement`

```bash
scripts/script.sh placement
```

Application methods — broadcast, band, starter, foliar, timing.

### `crops`

```bash
scripts/script.sh crops
```

Crop phosphorus requirements and removal rates.

### `cycling`

```bash
scripts/script.sh cycling
```

Phosphorus cycling — fixation, mineralization, pH effects, mycorrhizae.

### `environmental`

```bash
scripts/script.sh environmental
```

Environmental management — runoff, P index, eutrophication, 4R stewardship.

### `checklist`

```bash
scripts/script.sh checklist
```

Phosphorus management planning checklist.

### `help`

```bash
scripts/script.sh help
```

### `version`

```bash
scripts/script.sh version
```

## Configuration

| Variable | Description |
|----------|-------------|
| `PHOSPHATE_DIR` | Data directory (default: ~/.phosphate/) |

---

*Powered by BytesAgain | bytesagain.com | hello@bytesagain.com*