水稻播种量计算器
选择品种和播种方式，即可得到以 kg/ha 计的水稻播种量，以及种子成本相对于稻谷产值的比例。
Method and decision path
How to use this result in a commercial project
Use the result to test scope and compare scenarios. It is not a design, agronomic prescription, financing offer or supplier quotation.
- 1. Enter site evidence
Replace defaults with measured area, climate, water, energy, crop and commercial assumptions.
- 2. Test scenarios
Change one assumption at a time and record the effect on capacity, cost, demand or return.
- 3. Validate the duty
Ask the relevant agronomist, engineer or financial adviser to check the inputs and constraints.
- 4. Prepare a private RFQ
Carry the confirmed scope into a human-reviewed brief so written offers can be compared on the same basis.
Final specifications, performance, prices, supplier participation and timing depend on the site and written supplier responses; none is guaranteed by this calculator.
输入数据
基准参考值：常规稻 70/40 kg/ha，杂交稻 25/15 kg/ha（直播/移栽），并根据发芽率、田间损失和目标产量调整。
仅为规划估算——并非供应商报价，也不构成农艺建议。
常见问题
为什么杂交稻的播种量低得多？
杂交稻种植密度较低，因为单株分蘖更多。直播基准为 25 kg/ha，而常规稻为 70 kg/ha。
播种方式如何影响播种量？
移栽使用育秧苗，因此每公顷大田所需种子量低于直播。
Illustrative project summary
2 ha polytunnel expansion
An established open-field grower adds protected cropping with natural ventilation and drip irrigation.
2 ha · Single-span polytunnel · Leafy greens and herbs
Indicative full greenhouse project CAPEX
USD 575K – USD 1.3M
Illustration only, not a real project or quotation. This is the structure, equipment and site-works budget for the example greenhouse, not the price of this calculator’s individual system, seeds or inputs, and not a result calculated from your entries. Excludes land, permits, packhouse, financing costs and working capital.
Based on the published commercial greenhouse cost benchmark. Written offers require a private project review; commercial projects start from USD 250K.