Different Levels Of Phosphorous Research Articles

Effect of Phosphorus and Potassium on Growth and Yield of Baby Corn (Zea mays L.)

Field experiment was conducted during Rabi 2021 at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The soil in the experimental plot was sandy loam texture, almost neutral in soil reaction (pH 7.1), low in organic carbon (0.36%), available N (171.48 kg/ha), available P (15.2 kg/ ha) and available K (232.5 kg/ha). The experiment was arranged in a Randomized Block Design with nine treatments each replicated three times based on a one-year experiment with different levels of Phosphorous and Potassium. The results showed that application of 70 kg/ha Phosphorous + 25 kg/ha Potassium was recorded significantly Plant height (162.73 cm), No. of leaves/plant (13.26), Plant dry weight (108.06 g/plant), Cobs/Plant (1.34), Length of Cob/plant (19.29 cm), Girth of Cob/plant (7.64 cm), Cob weight with husk (65.09 g), cob weight without husk (23.63 g), cob yield with husk (15.14 t/ha), Cob yield without husk (5.16 t/ha) as compared to other treatments.

Effects of Different Levels of Phosphorous and Zinc Fertilizers on the Yield and Nutrient Uptake of Maize (Zea mays L.) on Luvisols in Northern Guinea Savannah Region of Nigeria

The study aimed to determine the effects of different levels of phosphorous and zinc fertilizers on the yield and nutrient uptake of maize (Zea mays L.) The experiments were conducted in a factorial experiment under Randomized Complete Block Design (RCBD) to determine the effect of P and Zn applications on TZL white composite improved variety of maize. Four levels of phosphorus (0, 10, 20 and 30 kg P ha-1) and three levels of zinc (0, 5 and 10kg Zn ha-1) were applied on experimental plots of 4.5m x 5m replicated thrice. The results shows no significant differences in both the years however, highest mean values of 2327.5 kg ha-1 and 2191.5 kg ha-1 was recorded at 20 kg P ha-1 and 10 kg Zn ha-1 Application of P and Zn at different rates increases their uptake in the stover with highest values of 22.57 mg -1 kg and 7.8 mg -1 kg in 2018 at 30 kg Pha-1 and 18.40 mg -1 kg and 5.21 mg -1 kg at 20 kg Pha-1 in 2019. While 26.54 mg -1 kg and 21.85 mg -1 kg in 2018 at 10 kg Znha-1 and 6.76 mg -1 kg and 5.27 mg -1 kg in 2019 with 0 kg Znha-1 respectively. It is therefore recommended the best results of the application of 30kg P ha-1 and 10 kg Zn ha -1 should be adopted for optimum yield of maize.

Effect of row spacing with different levels of phosphorous and biofertilizer on growth and yield of maize (Zea mays L.)

A field experiment was conducted at Crop Research Farm (CRF), SHUATS, Allahabad, during the kharif season of 2017 with 12 treatments replicated thrice in randomized block design, to determine the effect of row spacing with different levels of Phosphorous and biofertilizer on growth and yield of maize (Zea mays L.). This treatment consisted of two treatment of planting geometry 60 cm x 20 cm, 45 cm x 20 cm, three different levels of phosphorous 60 kg/ha, 80 kg/ha and 100 kg/ha. Seed was inoculated and uninoculated with PSB. The results revealed that spacing of 60 cm x 20 cm and 80 kg P ha-1 with phosphate solubilising bacteria was found to be the best treatment for obtaining higher grain yield (5.22 t ha-1), harvest index (43.13%), test weight (28.33 g) and other growth and yield attributes like higher net returns (Rs 40,303.50/-ha-1) and B:C ratio (2.18) was also observed. However, seed inoculation with PSB showed positive differences in effecting the grain yield.

Investigating Combination and Individual Impact of Phosphorus and Humic Acid on Yield of Wheat and Some Soil Properties

In order to evaluate the effect of different levels of Phosphorous (P) alone and in combination with Humic acid (HA) on the yield and P accumulation by wheat(TriticumaestivumL, CV Fakhr-e-Sarhad)., a field experiment was carried out at agriculture research station of Swabi, Pakistan during 2016-2017. A total of eight treatments replicated four times were arranged in Randomized Complete Block Design (RCBD) in the field. Two levels of HA including control (H0: control and H1: 500 g ha-1) and four levels of P (P2O5) including control as Single Super Phosphate (SSP) (P0: control, P1: 60 kg ha-1, P2: 90 kg ha-1, and P3: 150 kg ha-1) were utilized. ; Size of each plot was kept to 5x4 m. Addition of different levels of SSP alone and in combination with HA significantly (P<0.05) improved straw, grain and total wheat yield over control. HA in combination with 60 and 90 kg P2O5 ha-1 improved the grain yield by 22.4 and 6.5 % respectively as compared to the same amount of fertilizer applied alone. Total yield (Dry mass + Grains) of 20877 kg ha-1 was produced by the treatment P2H1 (90 kg P2O5 ha-1 + 500 g ha-1 HA) followed by the treatment P2H0, which were 78.69 and 75.03 % increases over the control. Significantly highest 1000- grain weight of 47.8 g was recorded in the treatment P2H1 while all other treatments showed non-significant increase in 1000- grain weight. Unlike soil pH values, improvement in the Soil Organic Matter content (SOM) was observed with the application of both HA and chemical fertilizers either applied alone or in combination. SSP applied either alone or in combination with HA increased significantly (P<0.05) the post-harvest soil P concentration as well as P accumulation by wheat plants over control. Results suggest that application 90 kg P2O5 ha-1 reinforced with HA (P2H1) may be considered as an optimum dosage for achieving optimum yield of wheat crop.

Evaluating the Effect of Nutrient Levels of Major Soil Types on the Productivity of Wheatlands in Hungary

Soil nutrient status is one of the most important constituents of land productivity. The research presented in this article is aimed at describing the influence of nitrogen, phosphorous, and potassium availability on crop yields across the major soil types of Hungary, under different climatic conditions. For this purpose, historical times series data from a 5-year period (1985–1989) regarding soil, land management, and crop yield of more than 80,000 fields, representing approximately 4 million ha of arable land, were statistically analyzed. The database was recently recovered from statistical archives stored in the format of digital records of the early 1980s and were used to study the productivity of major soil types for winter wheat cropping under balanced fertilizer input. Calculations were made to quantify the effects of soil nutrient levels. The evaluation was also performed for optimal and suboptimal climate conditions. Results show that the effect of nitrogen availability (as obtained from organic-matter content) had the largest influence on winter wheat yields. Up to a 26% difference in yields was observed, both on those soils with balanced material regimes and on those with leaching material regimes, under optimal climatic conditions. The effect of different levels of phosphorous was most significant under optimal climatic conditions on soils with balanced material regimes, reaching up to 17% difference between soils with very low and high phosphorous levels. The effect of different levels of potassium was the least significant in soils with balanced material regimes (maximum 8% difference among categories) and somewhat more pronounced in soils with leaching material regimes. Differences between the effects of nutrient levels due to climatic variation were also observed. According to our findings, stable production can be planned on croplands with average nutrient availability, regardless which of the two soil types they belong to. On the other hand, yield gap can be detected on fields with both low and high nutrient levels among optimal and suboptimal years, for all three nutrients [nitrogen–phosphorus–potassium (N–P–K)] of the analysis. Although our findings are based on historical data, most of the main relationships described are valid under current climatic and management conditions as well.