Macro and micronutrient play a vital role in the growth and productivity of fruit trees. A well-nourished fruit tree not only produces good yield but also improves quality and remains for longer period in healthy and productive condition. The literature pertaining to the problem entitled “Studies on application of macro and micronutrients in guava cv. Hisar Safeda” has been presented in this chapter. The available literature having relevance to present study has been reviwed in this chapter under the following heading:
2.1 Experiment 1: Effect of N, P, and K fertilizer on growth, yield and quality of guava
2.1.1 Plant growth parameter Nitrogen, phosphorus, and potassium are most indispensable of all mineral nutrients for growth …show more content…
The TSS of fruit increased with the application of higher doses of nitrogen in guava (Tassar et al., 1989; Tomar et al., 1998). Dudi et al. (2005) observed that individual application of nitrogen 750 g/plant and farmyard manure 100-150 kg/plant effectively increased the total soluble solids in Kinnow mandarin. Kumar et al. (2009) evaluated the effects of three levels of nitrogen and potassium (300, 600 and 900 g/tree/year) and two levels of phosphorus (300 and 600 g/tree/year) on fruit quality of guava. They observed that with increasing nitrogen and potassium doses there is no significant increase in fruit TSS but when potassium fertilizer applied then significant increased in fruit TSS. Ghosh et al., (2012) reported the highest fruit TSS was observed when farmyard manure was applied @ 20 kg along with nitrogen 400 g, phosphorus 100 g and potash 300 g/plant/year was applied in …show more content…
However, in excess, it may make the fruits unpalatable even if other components are optimum. In guava, Kumar et al. (1996) reported that increasing levels of nitrogen significantly reduced the fruit acidity as compared to control and the juice acidity decreased appreciably from 0.35 to 0.20% at nitrogen 100 g/tree and least value being at nitrogen level 800 g/tree/year. In mango, the minimum fruit acidity was observed when NPK was applied @ 1000, 500 and 500 g/tree (Gautam et al.,
2.1 Experiment 1: Effect of N, P, and K fertilizer on growth, yield and quality of guava
2.1.1 Plant growth parameter Nitrogen, phosphorus, and potassium are most indispensable of all mineral nutrients for growth …show more content…
The TSS of fruit increased with the application of higher doses of nitrogen in guava (Tassar et al., 1989; Tomar et al., 1998). Dudi et al. (2005) observed that individual application of nitrogen 750 g/plant and farmyard manure 100-150 kg/plant effectively increased the total soluble solids in Kinnow mandarin. Kumar et al. (2009) evaluated the effects of three levels of nitrogen and potassium (300, 600 and 900 g/tree/year) and two levels of phosphorus (300 and 600 g/tree/year) on fruit quality of guava. They observed that with increasing nitrogen and potassium doses there is no significant increase in fruit TSS but when potassium fertilizer applied then significant increased in fruit TSS. Ghosh et al., (2012) reported the highest fruit TSS was observed when farmyard manure was applied @ 20 kg along with nitrogen 400 g, phosphorus 100 g and potash 300 g/plant/year was applied in …show more content…
However, in excess, it may make the fruits unpalatable even if other components are optimum. In guava, Kumar et al. (1996) reported that increasing levels of nitrogen significantly reduced the fruit acidity as compared to control and the juice acidity decreased appreciably from 0.35 to 0.20% at nitrogen 100 g/tree and least value being at nitrogen level 800 g/tree/year. In mango, the minimum fruit acidity was observed when NPK was applied @ 1000, 500 and 500 g/tree (Gautam et al.,