Fruit yield and quality of sweet oranges affected by nitrogen, phosphorus and potassium fertilization in tropical soils

Coriander is an important aromatic plant of India. On steam distillation, the seeds yield a colourless or pale yellow volatile essential oil, which is used for flavouring food products, liqueurs, alcoholic beverages and perfumes. Coriander is also used in the synthesis of vitamin A (Bedoukian, 1967). The Central Institute of Medicinal and Aromatic Plants introduced several Bulgarian selections of coriander and evolved a superior variety, CIMPO S-33. This variety contains more essential oil (about 1·5%) than the local varieties available in India (0·2–0·3%) (Dimri, Khan & Narayana, 1976). Earlier work on coriander has shown that application of N (Bhupinder Singh et al. 1979) and N, P and K (Vagujfalvi, 1964) increases seed and oil yields of coriander. Information on nutrient uptake by coriander and on the effect of fertilizers on coriander oil quality is not available in India. The present experiment was designed to study the effect of different rates of nitrogen, phosphorus and potassium application on seed yield, yield and quality of essential oil and N, P and K uptake by coriander (cv. CIMPO S-33).

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The influence of mineral nutrition, stage of harvest and flower position on seed yield and quality of phaseolus Vulgaris L.

10.12681/eadd/4756 ◽

1981 ◽

Author(s):

Μιχαήλ Γαβράς

Keyword(s):

Seed Yield ◽

Plant Nutrition ◽

Seed Quality ◽

Mother Plant ◽

Yield And Quality ◽

Phosphorus And Potassium ◽

Flower Position ◽

Seed Yields ◽

Nitrogen Phosphorus

In this work the effects of mother plant nutrition and flower position on the plant in relation to different harvest stages on French beans (Phaseolus vulgaris L. cv. Cascaded; seed yield, quality and progeny performance have been studied. In three pot experiments under glass and one in the field, different levels of nitrogen, phosphorus, potassium and molybdenum were applied to the mother plant and it was found that higher seed yields were obtained with the higher nutrient levels tested, but these high seed yields were not necessarily accompanied by high quality. Seed yield and quality increased with the increase of nitrogen and potassium. The phosphorus effect however, was different, in that the seed yield increased in relation to the levels but the seed quality decreased. Molybdenum was found to be necessary in moderate amounts, especially for the seed quality. The interactions between nitrogen and phosphorus levels (NP) and between nitrogen, phosphorus and potassium (NPK) were found to be very important for bean seed quality, because their significant effect was similar and constantly present in most of the seed vigour components examined. It seems that the combinations of high nitrogen levels with moderate amounts of phosphorus applied to the mother plant resulted in seed of good quality. In one pot experiment under glass the progeny performance was examined, using seed from the 1st mother plant nutrition experiment and it was found that the mother plant nutrition affected the progeny in it*s early stages. This effect disappeared later and no difference in progeny seed yield was found. In two pot experiments under glass the bean pods were harvested at different stages and the pods from the main axis were separated from the pods on the secondary branches grown mainly from the axils of the primary leaves. It was found that the quality of seed from the secondary branches was lower than the quality of seed from the main axis. However, this difference in seed quality became less with the later harvests. The following tests were used to assess seed quality: the official germination test, seedling evaluation test, cold test, and electrical conductivity test. In addition, the seed size was determined and the seeds were analysed for total nitrogen, phosphorus and potassium content.

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Response of Sugar Beet to Graded Levels of Nitrogen, Phosphorous and Potash on Nutrient Uptake and Economics

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2018/v26i530054 ◽

2019 ◽

pp. 1-9

Author(s):

Kumar D. Lamani ◽

S. I. Halikatti

Keyword(s):

Sugar Beet ◽

Agricultural Research ◽

Block Design ◽

Research Station ◽

Net Returns ◽

Yield And Quality ◽

Concept Application ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

Field experiment was undertaken during 2005-06 to 2006-07 to study the various agro-techniques for sugar beet cultivation for Northern Karnataka at Agricultural Research Station, Bailhongal, Belgaum district (Karnataka) under irrigated condition. The experiment consisted of 28 treatment combinations comprising of graded levels of nitrogen, phosphorus and potassium. Design of the experiment was randamized block design with factorial concept. Application of 180, 90 and 120 kg ha-1 of nitrogen, phosphorus and potassium, respectively registered significantly higher nitrogen, phosphorus and potassium uptake by sugar beet compared to other levels of nutrient. The same dose of nutrient application also improved gross returns and net returns. Farmers can adopt application of 180, 90 and 120 kg ha-1 of nitrogen, phosphorus and potassium, respectively for getting higher yield and quality of the crop.

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Effects of N, P, K on Yield and Quality of Jujube in the Loess Hilly Region and Its Fertilization Model

10.1101/2020.09.01.277301 ◽

2020 ◽

Author(s):

Shenglan Ye ◽

Tiancheng Liu ◽

Yulu Wei

Keyword(s):

Organic Acids ◽

Total Flavonoid ◽

Total Flavonoid Content ◽

Potassium Fertilizer ◽

Flavonoid Content ◽

Yield And Quality ◽

Phosphorus And Potassium ◽

Positive Effect ◽

Nitrogen Phosphorus

AbstractThe aim of this study is to explore the optimal N, P and K fertilization model suitable for pear-jujube in the mountain of northern Shaanxi in 2016 years. This experiment use 3-factor, saturated optimal design for quadratic fertilization scheme. The effects of different fertilization treatments on the yield and quality of pear-jujube were studied through field experiments. And comprehensive evaluation based on the quality of pear-jujube. The results showed that N1P3K3 has the highest yield, which is 48% higher than the control (CK). The effect of nitrogen, phosphorus, and potassium on yield is potassium fertilizer (positive effect)> phosphate fertilizer (positive effect)> nitrogen fertilizer (negative effect). Phosphate and potassium fertilizers have significant effects on increasing the content of soluble solids. Application of potassium fertilizer alone can significantly increase the content of reduced Vitamins c. The combined application of nitrogen, phosphorus, and potassium reduced the content of reduced Vitamins c. N3P3K1 treatment can significantly increase the total sugar content in fruits. Single application of phosphate and potassium increases the content of organic acids in fruits. Other fertilization treatments have significant effects on reducing the content of organic acids in fruits. The sugar-acid ratio of N3P3K1 is significantly higher than CK, which had an important effect on improving the taste. A high amount of potassium fertilizer has a significant effect on increasing the total flavonoid content in fruits. The interaction of nitrogen and phosphorus will reduce the total flavonoid content. The effect of nitrogen, phosphorus, and potassium on quality is potassium (positive effect)> nitrogen (positive effect)> phosphate (positive effect). Comprehensive analysis, the optimal fertilization amount when the target yield is 23000 ∼ 27000 kg·hm-2 and the quality score is above 85 is nitrogen (N) 406.93 ∼ 499.31 kg·hm-2, phosphorus (P2O5) 203.94 ∼ 297.08 kg·hm-2, and potassium (K2O) 285.47 ∼ 322.82 kg·hm-2.

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Response of Nitrogen, Phosphorus and Potassium Fertilization on Productivity and Quality of Winter Rapeseed in Central China

International Journal of Agriculture and Biology ◽

10.17957/ijab/15.0217 ◽

2016 ◽

Vol 18 (06) ◽

pp. 1137-1142 ◽

Cited By ~ 3

Author(s):

Muhammad Yousaf ◽

Xiaokun Li ◽

Tao Ren ◽

Rihuan Cong ◽

Syed Tahir Ata-Ul-Karim ◽

...

Keyword(s):

Central China ◽

Potassium Fertilization ◽

Winter Rapeseed ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

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