phosphorus and potassium

Absorption characteristics of nitrogen phosphorus and potassium of overwintering spinach in Eastern Hebei Province

冀东地区越冬菠菜氮磷钾的吸收特性

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Based on single quadratic equation of nitrogen, phosphorus and potassium under suitable fertilization rate, the optimum amount of N fertilizer among years had significantly increasing trend, the one for P fertilizer increased and K fertilizer with a slightly increase.

据适宜施肥条件下水稻氮、磷、钾单因素一元二次肥效方程分析，氮肥最佳施用量呈逐年显著增加趋势，钾肥最佳施用量有所上升，磷肥最佳施用量缓慢增加。

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There were more nematode cysts in soil where the content of phosphorus and potassium were naturally rich and where the water capacity was higher. Most nema-todes inhabited in 5-30 cm cultivated horizon.

CCN多居于自然含磷、钾元素多且保水性能好的油沙土中，以5～30cm的耕作层孢囊量较多。

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Absorption and distribution of nitrogen, phosphorus and potassium in taro

芋对氮磷钾吸收分配规律的研究

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The change of edaphic total phosphorus and potassium content were complicated in the enclosed grassland and grazing land, and not had any regularity.

土壤全P含量和全K含量在围封地与放牧地的变化均比较复杂，未呈任何规律性变化。

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The nutrient contents of mountain soils and climate characteristic at the different height in Yuexi county were studied. It was observed that the mountain soils were seriously deficient in organic matter, nitrogen and readily available phosphorus and potassium.

研究岳西县不同海拔高度山区土壤养分含量及气候特点，结果表明，山区土壤有机质含量较低，土壤含N、速效磷和速效性钾含量普遍极低。

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The influence of different light and temperature conditions inside solar greenhouse of winter spring and autumn winter crops of different seasons in northern China on uptake and distribution of nitrogen, phosphorus and potassium in cucumber was studied.

研究了华北地区秋冬、冬春不同季节茬口日光温室内的不同光温环境对黄瓜氮、磷、钾吸收分配的影响。

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The nitrogen circulation is positive equilibrium, the phosphorus and potassium circulation are all negative equilibrium and becoming worse in farmland material circulation.

农田物质循环中氮素为正平衡，磷钾素均为负平衡并在加剧；

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Effects of different Nitrogen, Phosphorus and Potassium Concentration on Production of No-tillage Corn

氮磷钾不同配比对玉米免耕产量的影响

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Using this model, the ratios of phosphorus and potassium in Phalacnopsis production can be quantified exactly.

该模型可以精确的定量蝴蝶兰生产中的氮磷钾比例.

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Technique of Balanced Fertilization of Nitrogen, Phosphorus and Potassium for Silage Maize

青贮玉米平衡施肥技术研究

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Study on Uptake and Distribution of Nitrogen, Phosphorus and Potassium of Solar Greenhouse Cucumber under Different Crop

不同茬口日光温室黄瓜对氮磷钾吸收分配规律的研究

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Studies on Effect of Mutiple Factors of Nitrogen, Phosphorus And Potassium in Small Red Bean

红小豆氮磷钾复因子效应的研究

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This product can supply general dissolved Nitrogen, Phosphorus and Potassium, etc, thus to keep nourishment balance and physical function normal.

补充通常水溶性氮、、等，提供均衡的营养，维护生理正常。

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Study of the Effect of Nitrogen, Phosphorus and Potassium Fertilizer Combined Application on the Yield of Peanut Intercrop Scallion

花生间作大葱条件下氮磷钾肥配施效应的研究

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