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土壤肥力

好的生产土壤是任何成功的耕作制度的基础,也是培育足够高质量牧草的关键。因此,the management of soil fertility levels should be a primary objective of every farm.To measure soil fertility we test soil to identify the pH level,Phosphorus (P) level,钾(K)水平。最近对Teagasc试验土壤的回顾表明,爱尔兰大部分土壤的pH值低于目亚博体育官网无法取款标值(pH6.3)。P和K(即Index 3) and will be very responsive to application of lime to increase pH,and also P & K.On many farms sub-optimal soil fertility is leading to a drop in output and income if allowed to continue.

John Maher,在Grass10运动中,在下面的视频中强调了有效土壤肥力管理的5个步骤。

Correct your soil fertility with 5 simple steps #Grass10

纠正你的土壤肥力,再多种25%的草,这意味着大约。€100 additional profit per acre.我们三分之二的农场缺石灰,P or K but can be easily fixed.As part of the #grass10 campaign,John Maher为我们介绍了5个简单的改进步骤


Soil Testing

How to Take a Soil Sample

Soil testing is the first step in correcting any soil fertility issues on your farm and to get accurate soil test results you need to get a soil sample which is representative of the area you're testing.To understand how to take a soil sample,the soil index system and interpreting your soil sample results click on土壤分析.

Specialist Mark Plunkett (亚博体育官网无法取款Teagasc,约翰斯顿)与德克兰·麦卡德尔(Teagasc Equine Specialis亚博体育官网无法取款t)就获得土壤肥力真实读数的最佳方式进行了交谈,这样你就能知道哪些围场低于目标,哪些围场可以得到改善。

如何采集土壤样本


Soil pH

Applying Lime

If the soil pH is below target pH 6.3,有可能被锁在土里等着出来。当石灰施加于低于目标ph的土壤时,立即意识到营养素释放了这种潜能并推动了农场的草产量。Our wet climate in Ireland means that a lot of calcium and lime is naturally washed out of our soils making our soils very acidic.For this reason it is important that we apply lime regularly to control soil acidity and keep soil pH as close as possible to the optimum range.有关详细信息,请单击土壤酸碱度和石灰and for advice for grasslands clickLiming Grassland Soils.

In the video below Mark Plunkett,土壤营养专家与德克兰·麦卡德尔讨论照顾我们的土壤的重要性。记住,多吃-多吃草-多赚!

爱尔兰土壤的土壤肥力-土壤酸碱度和石灰


P & K Index

Target Index 3

The aim is to have optimum soil P and K (Index 3) fertility levels in all paddocks.在最佳生育水平下,需要更换产品(如肉或牛奶)中的营养素。Low fertility (Index 1 & 2) soils need to be fertilised correctly to achieve soil index 3.

对于指数3中的土壤,应设计施肥方案,以取代被移除的营养素。thus maintaining the soil fertility levels.

Index 1 and 2 soils have a very low to low nutrient supply,and require additional nutrients to increase the fertility levels on an annual basis.

指数4土壤养分供应量高。这些土壤提供了一个机会,可以根据土壤测试读数,通过收获多年的P和K土壤储备来节省化肥投入。

If you're looking for fertiliser advice for your dairy,beef or sheep farm please click草原化肥的建议同时检查您的营养管理计划,确保您不超过您的最大限制。


Slurry

Make the most of what you've got!

泥浆是一种很有价值的资源,通过瞄准最需要泥浆的围场,并在适当的条件下使用。The nutrient value of cattle and pig slurry are in the following table:

Type N(units/1000gals) P(单位/1000gals) K(units/1000gal)
Cattle Slurry 5 5 30
Pig Slurry 19 7 20

This table should only be used as a guideline as values can differ.有关其他有机肥料的价值,请单击Value of Organic Manures.Patrick Forrestal,土壤养分研究人员解释了如何从泥浆中获取最大的养分,这将有助于你节省化学肥料的钱。

最大限度地提高泥浆使用效率

Patrick Forrestal概述了如何确定哪些字段应接收泥浆,what method reduces the loss of Nitrogen to the atmosphere,传播它的最佳时间和天气条件。


Balancing

Balance with Compound Fertilisers

在充分利用泥浆和其他有机肥料后,农场可能需要补充化学肥料,以达到土壤肥力目标。The time it takes to balance soil nutrients can vary depending on the nutrient.K通常固定得比较快(每年上升1个指数),而P通常需要更长的时间,尤其是在较重的土壤上。The amount of P & K needed for optimum soil fertility will also vary depending on farm stocking rate (higher stocking rates will require more P & K to replace higher offtakes),soil indexes (lower indexes require higher P & K to build fertility) and whether the field is being grazed or used for grass silage/hay making (silage/hay production has high K offtakes whereas grazing is usually harder on P index). It is important to remember that getting the soil pH right is foremost as this can in itself raise the P and K soil index.

If you're looking for fertiliser advice for your dairy,beef or sheep farm please click草原化肥的建议. Also check your farms Nutrient Management Plan to ensure you don't exceed your maximum limits.

Other Useful Information:

草原微量元素

土壤肥力常见问题

土壤肥力Support Material