Effect of combined nitrogen and phosphorus fertilizer application of wheat-maize intercropping system

Liu, Deping; Yang, Shijia; Shi, Haibin; Zheng, Xiaobo; Sun, Lingling; Chang, C. L.

doi:10.3724/sp.j.1011.2014.30634

Cited by 2 publications

(3 citation statements)

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“…In addition, seedling nutrition has long been considered an important attribute when viewed through the concept that fertilization practices can modify seedling morphological development in ways that are potentially beneficial for seedling field performance [10][11][12]. This is why nutrition is considered an important attribute in recent seedling quality discussions [35][36][37]. This trial examined a range of fertilization regimes for Phoebe bournei to determine which regime produced seedlings with desirable morphological attributes.…”

Section: Effects Of N-p-k Fertilizer On Phoebe Bournei Seedlings Growthmentioning

confidence: 99%

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Yang

Grossnickle³

et al. 2020

Forests

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Phoebe bournei is a rare and endangered woody species and the success of its plantation development is dependent upon proper seedling cultivation. This study explored the regulation of N, P and K fertilizer and the interaction of these macronutrients on the growth of Phoebe bournei seedlings. To determine the optimum rate and ratio of N–P–K fertilizer in seedling cultivation, we used the unique “3414” incomplete orthogonal regression design to evaluate the effects of N–P–K fertilization on seedling morphological development. One-year-old Phoebe bournei bareroot seedlings were grown for one growing season under the defined fertilization regime, with their morphological development determined by measuring seedling attributes—root, stem, leaves and total biomass, root collar diameter and seedling height. These attributes were then combined to calculate the following indices: height-diameter ratio, shoot-root ratio and the seedling quality index (QI). Results showed that the N–P–K fertilizer had significant and beneficial effect on seedling cultivation. N effect was highest, followed by K and P. The three-way N×P×K interaction effect was strong, and the two-way interactions effect was highest for N×P, followed by P×K and N×K. At the “2” level of N (0.532 g·plant−1), P (P2O5, 0.133 g·plant−1), and K fertilizer (K2O, 0.356 g·plant−1), seedling growth and biomass accumulation were at their maximum. Unary, binary, and ternary quadratic fertilizer effect function equations of QI were established. Through comparative analysis, the ternary quadratic model was the optimal model and through a simulation–optimization, the optimal N–P–K fertilizer rates were 0.373~0.420 g·plant−1 (N), 0.086~0.106 g·plant−1 (P2O5), 0.243~0.280 g·plant−1 (K2O), with a N–P–K ratio of 1:0.20:0.43~1:0.65:0.75.

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Section: Effects Of N-p-k Fertilizer On Phoebe Bournei Seedlings Growthmentioning

confidence: 99%

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Yang

Grossnickle³

et al. 2020

Forests

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“…Since the mathematical model was obtained after non-dimensional treatment and linear substitution, the absolute value of partial regression coefficients of each primary term can directly reflect the degree of influence of P, F, and W on the yield, which is shown as P>F>W. Meanwhile, the partial regression coefficient was positive, indicating that P, F, and W have a positive effect on the yield and growth of rice. Based on published methods [36][37][38], seven coding levels between P, F, and W and 152 sets of combination schemes exceeding the mean yield of 4449.00 kg•ha −1 were obtained, accounting for 44.32% of the total schemes. Frequency analysis was then used to calculate the frequency of each level of P, F, and W, and a management scheme with a yield greater than the mean yield was obtained (Table 9).…”

Section: Three-factor Improvement Effect Model and Optimal Dosage Of ...mentioning

confidence: 99%

“…The experimental design includes 3 factors (here: P, F, and W) and 4 levels of administration, resulting in 14 treatments. It follows a D-optimal design for quadratic regression and has the advantages of reduced required processing and high efficiency [36][37][38]. Thus, this method was used in this experiment to comprehensively analyze and evaluate the effects of different dosage ratios on rice yield and its constituent factors, soil pH, and electrical conductivity (EC).…”

Section: Introductionmentioning

confidence: 99%

Amendments of Severe Saline-Sodic Paddy Land: Optimal Combination of Phosphogypsum, Farmyard Fertilizer, and Wood Peat

et al. 2023

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We aimed to determine the optimal combination of amendments to increase rice yields in saline-sodic soil. The effects of different proportions of phosphogypsum (P), farmyard fertilizer (F), and wood peat (W) across the main growth period of rice were studied. A total of 14 treatments were designed based on the “3414” fertilizer effect field experiment scheme, with 3 factors (P, F, and W) and 4 application levels per factor. Application of a combination of P, F, and W reduced soil pH and electrical conductance (EC) (p < 0.05), increasing rice yields. The theoretical rice yield after treatment P2F2W2 (P 30, F 50, and W 30 t·ha−1) was 5819.20 kg·ha−1, which was 32.52-fold higher than that after P0F0W0 (P, F, and W, 0 t·ha−1). Panicle weight, number of total filled grains, total grain weight, and seed-setting rate were 9.76, 17.35, 32.11, and 3.96 times higher than those in the control treatment, respectively. Compared with the control P0F0W0 treatment, soil pH in P2F2W2 in 0–5, 5–10, 10–15, and 15–20 cm depth decreased by 12.69, 12.32, 11.18, and 10.70%, respectively, and soil EC was 1.06-fold, and 70.79, 49.30, and 47.76% higher, respectively. Overall, we found that the P2F2W2 treatment, with a combination of P, 29.09–32.38 t·ha−1; F, 40.36–46.97 t·ha−1; and W, 19.57–23.95 t·ha−1 was optimal in this experiment.

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Effect of combined nitrogen and phosphorus fertilizer application of wheat-maize intercropping system

Cited by 2 publications

References 0 publications

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Amendments of Severe Saline-Sodic Paddy Land: Optimal Combination of Phosphogypsum, Farmyard Fertilizer, and Wood Peat

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